Abstract The present study is focused on a Common Effluent Treatment Plant (CETP) located at Umaraya, District Baroda. Waste water from about thirty five small and medium scale industries majorly comprising of chemical manufacturing and pharmaceutical industries are treated in this CETP. The incoming wastewater was collected and mixed to prepare samples. They were then oxidized by Fenton’s reagent (Fe2+/H2O2) reduction in COD and BOD were observed at different H2O2 and FeSO4 doses to determine the optimum values. Thereafter pretreated wastewater was subjected to filtration with ordinary charcoal and COD and BOD reductions were noted.COD and BOD reduction of 64.35% and 68.57% respectively was achieved by Fenton’s reagent and after filtration the values were well within the disposal standards. The results clearly indicate that conventional system should be replaced by physicochemical process like oxidation and filtration. Index Terms: CETP, COD and BOD reduction, Fenton’s Reagent, Charcoal Filtration
It is our group presentation.
topic on effluent treatment plant.
From this presentation, you will be able to know elaborately about the ETP. And i hope, this presentation will be very helpful for your presentation, related this topic.
Moreover, from this content you can easily understand how to management wastewater, wastewater treatment etc.
Biological Treatment of Wastewater by Activated Sludge Process Vaibhav Kambale
Very important Secondary Treatment of Wastewater which is followed in the design of most of the types of conventional sewage treatment plant. Hence it is important to understand the basic principles of Activated Sludge Process
Processing of Lignin and the Removal of Detrimentals with Deep Eutectic SolventsEuropeanPaper
By Laura Kollau, Dannie van Osch & Panos Kourios, PhD Students from TU Eindhoven. This was presented during the Two Team Project - Winners' first successes session, organised as part of European Paper Week 2015. More at http://www.cepi.org/epw
Presentation on Azeotropic and Extractive Distillation. Introduction about distillation, azeotropic and extractive distillation and the difference between them.
An overview of Chapter 5 of Scott Fogler's Book: Reactor Engineering
This Chapter is broken down into two sections.
Section 1 - Batch Reactor Data
Excess Method
Differential Method
- Graphical Method
- Numerical Method
- Polynomial Fit
Integral Method
Half Live Method
Initial Rates of Reaction Method
Section 2 - Differential Reactor Data.
Application to PBR
After you finish this chapter, you should be able to fit:
zero, first and second order differential equations
It is our group presentation.
topic on effluent treatment plant.
From this presentation, you will be able to know elaborately about the ETP. And i hope, this presentation will be very helpful for your presentation, related this topic.
Moreover, from this content you can easily understand how to management wastewater, wastewater treatment etc.
Biological Treatment of Wastewater by Activated Sludge Process Vaibhav Kambale
Very important Secondary Treatment of Wastewater which is followed in the design of most of the types of conventional sewage treatment plant. Hence it is important to understand the basic principles of Activated Sludge Process
Processing of Lignin and the Removal of Detrimentals with Deep Eutectic SolventsEuropeanPaper
By Laura Kollau, Dannie van Osch & Panos Kourios, PhD Students from TU Eindhoven. This was presented during the Two Team Project - Winners' first successes session, organised as part of European Paper Week 2015. More at http://www.cepi.org/epw
Presentation on Azeotropic and Extractive Distillation. Introduction about distillation, azeotropic and extractive distillation and the difference between them.
An overview of Chapter 5 of Scott Fogler's Book: Reactor Engineering
This Chapter is broken down into two sections.
Section 1 - Batch Reactor Data
Excess Method
Differential Method
- Graphical Method
- Numerical Method
- Polynomial Fit
Integral Method
Half Live Method
Initial Rates of Reaction Method
Section 2 - Differential Reactor Data.
Application to PBR
After you finish this chapter, you should be able to fit:
zero, first and second order differential equations
Lecture note of Industrial Waste Treatment (Elective -III) as per syllabus of Solapur university for BE Civil
Prepared by
Prof S S Jahagirdar,
Associate Professor,
N K ORchid College of Engg and Tech,
Solapur
Dissolved Air Flotation is a Wastewater Treatment technology that removes harmful impurities from industrial, commercial, & residential wastewater through air pressure and makes it usable for other purposes...know more: https://kelvinindia.in/dissolved-air-flotation
Microplastics as an emerging threat to terrestrial ecosystemsJoão Soares
Microplastics (plastics<5 mm, including nanoplastics which are<0.1lm) originate from the fragmentation of large plastic litter or from direct environmental emission.Their potential impacts in terrestrial ecosystems remain largely unexplored despite numerous reported effects on marine organisms. Most plastics arriving in the oceanswere produced, used, and often disposed on land. Hence, it is within terrestrial systems that microplastics might first interact with biota eliciting ecologically relevant impacts. This article introduces the pervasive microplastic contamination as a poten-tial agent of global change in terrestrial systems, highlights the physical and chemical nature of the respective observed effects, and discusses the broad toxicity of nanoplastics derived from plastic breakdown. Making relevant links to the fate of microplastics in aquatic continental systems, we here present new insights into themechanisms of impacts on terrestrial geochemistry, the biophysical environment, andecotoxicology. Broad changes in continental environments are possible even in parti-cle rich habitats such as soils. Furthermore, there is a growing body of evidence indi-cating that microplastics interact with terrestrial organisms that mediate essential ecosystem services and functions, such as soil dwelling invertebrates, terrestrial fungi,and plant-pollinators. Therefore, research is needed to clarify the terrestrial fate andeffects of microplastics. We suggest that due to the widespread presence, environmental persistence, and various interactions with continental biota, microplastic pollution might represent an emerging global change threat to terrestrial ecosystems
Reactive distillation
LeChatelier’s law
conventional process
mtbe production using Reactive distillation
various contact devices used for Reactive distillation
advantages of Reactive distillation
disadvantages of Reactive distillation
application of Reactive distillation
Lecture note of Industrial Waste Treatment (Elective -III) as per syllabus of Solapur university for BE Civil
Prepared by
Prof S S Jahagirdar,
Associate Professor,
N K ORchid College of Engg and Tech,
Solapur
Dissolved Air Flotation is a Wastewater Treatment technology that removes harmful impurities from industrial, commercial, & residential wastewater through air pressure and makes it usable for other purposes...know more: https://kelvinindia.in/dissolved-air-flotation
Microplastics as an emerging threat to terrestrial ecosystemsJoão Soares
Microplastics (plastics<5 mm, including nanoplastics which are<0.1lm) originate from the fragmentation of large plastic litter or from direct environmental emission.Their potential impacts in terrestrial ecosystems remain largely unexplored despite numerous reported effects on marine organisms. Most plastics arriving in the oceanswere produced, used, and often disposed on land. Hence, it is within terrestrial systems that microplastics might first interact with biota eliciting ecologically relevant impacts. This article introduces the pervasive microplastic contamination as a poten-tial agent of global change in terrestrial systems, highlights the physical and chemical nature of the respective observed effects, and discusses the broad toxicity of nanoplastics derived from plastic breakdown. Making relevant links to the fate of microplastics in aquatic continental systems, we here present new insights into themechanisms of impacts on terrestrial geochemistry, the biophysical environment, andecotoxicology. Broad changes in continental environments are possible even in parti-cle rich habitats such as soils. Furthermore, there is a growing body of evidence indi-cating that microplastics interact with terrestrial organisms that mediate essential ecosystem services and functions, such as soil dwelling invertebrates, terrestrial fungi,and plant-pollinators. Therefore, research is needed to clarify the terrestrial fate andeffects of microplastics. We suggest that due to the widespread presence, environmental persistence, and various interactions with continental biota, microplastic pollution might represent an emerging global change threat to terrestrial ecosystems
Reactive distillation
LeChatelier’s law
conventional process
mtbe production using Reactive distillation
various contact devices used for Reactive distillation
advantages of Reactive distillation
disadvantages of Reactive distillation
application of Reactive distillation
In order to assessing whether algae can reduce the pollution concentration of the effluents by
absorbing the nutrients, it is found that effluents can effectively be treated by employing algal organisisms such
as Oscillatoria and Stigeoclonium species and these organisms are frequently found in the polluted waters and
they were recorded as pollution tolerant forms. In the laboratory procedures out of the several media tested
Modified CHU No. 10 medium was found to be quite suitable for both the test organisms. It was found that up to
87% and 85% of phosphate uptake was achieved by Oscillatoria and Stigeoclonium respectively with 13% and
16% increase of D.O. in the effluents by the tenth day. In case of organic matter Oscillatoria removed 73% and
Stigeoclonium 70% up to tenth day
Lecture note of Industrial Waste Treatment (Elective -III) as per syllabus of Solapur university for BE Civil
Prepared by
Prof S S Jahagirdar,
Associate Professor,
N K ORchid College of Engg and Tech,
Solapur
Lecture note of Industrial Waste Treatment (Elective -III) as per syllabus of Solapur university for BE Civil
Prepared by
Prof S S Jahagirdar,
Associate Professor,
N K ORchid College of Engg and Tech,
Solapur
Lecture note of Industrial Waste Treatment (Elective -III) as per syllabus of Solapur university for BE Civil
Prepared by
Prof S S Jahagirdar,
Associate Professor,
N K ORchid College of Engg and Tech,
Solapur
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Economic feasibility report on cetp using physico chemical process-a case studyeSAT Publishing House
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology.
Economic feasibility report on cetp using physico chemical process-a case studyeSAT Journals
Abstract The present study is focused on a Common Effluent Treatment Plant (CETP) located at Umaraya, District Baroda. Waste water from about thirty five small and medium scale industries majorly comprising of chemical manufacturing and pharmaceutical industries are treated in this CETP. The study here is aimed for providing economic feasibility report of the proposed physicochemical process replacing the conventional biological treatment in the CETP. It has been suggested to replace by advanced oxidation and filtration units. The cost estimation consisting of capital cost, materials cost and operation and maintenance cost were carried out for the proposed structure. The feasibility studies conducted shows that replacement with the proposed treatment system is technically feasible but expensive. Index Terms: CETP, Physicochemical process, Feasibility studies, Fenton’s Reagent
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Performance Evaluation of 9 MLD Sewage Treatment Plant at Gurgaon and Cost Ef...civej
Sewage treatment plant under study has 9 MLD capacity and is located in Gurgaon. It receives sewage from the surrounding residential areas and after three stage treatment, treated effluent is supplied back to meet water requirement for various purposes. This has certainly reduced dependency on the precious underground water and thereby reducing the burden and saving environment. For performance evaluation of the sewage treatment plant samples were collected at various stages i.e., at inlet raw sewage, after primary treatment, secondary treatment and after tertiary treatment. Samples were tested to measure various parameters like pH, Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Dissolved Oxygen (DO), Total Suspended Solids (TSS), Total Kjedahl Nitrogen (TKN), Total Coliform, Phosphorous and Oil & Grease. Data on above parameters were observed and collected for three months November, 2014 to January, 2015. All these treatment are adding a huge cost to the recycled water. Hence the present study is aimed to provide alternatives to reduce the cost input. Also studies were made to find out ways by minimizing processes and stages of treatment.
37.8 MGD Activated Sludge Wastewater Treatment Plant Field and Model Capacity...njcnews777
This paper presents results from the model capacity evaluation of an activated sludge plant at a large 37.8 MGD regional municipal wastewater treatment plant with reuse potential. The plant capacity evaluation (stress test) was performed to evaluate treatment process capacity and efficiencies as a part of the continuous improvement of the treatment plant for process optimization and maximization of flow through the plant.
International Journal of Engineering Research and Applications (IJERA) is an open access online peer reviewed international journal that publishes research and review articles in the fields of Computer Science, Neural Networks, Electrical Engineering, Software Engineering, Information Technology, Mechanical Engineering, Chemical Engineering, Plastic Engineering, Food Technology, Textile Engineering, Nano Technology & science, Power Electronics, Electronics & Communication Engineering, Computational mathematics, Image processing, Civil Engineering, Structural Engineering, Environmental Engineering, VLSI Testing & Low Power VLSI Design etc.
Optimization of ultrasonicated membrane anaerobic system (umas) for sewage sl...eSAT Journals
Abstract Ultrasonicated Membrane Anaerobic System UMAS was successfully used for sewage sludge treatment and biogas production. Central Composite Design and Response Surface Methodology were used to determine the optimum conditions in which UMAS produce a maximum content of methane in the biogas produced. The effects of three variables namely pH, chemical oxygen demand (COD) and organic loading rate (OLR) on methane content were evaluated individually and interactively. The optimum conditions obtained were pH 7.74, COD 1061.06 Mg/l and OLR 0.90 kg/m3d. The predicted maximum percentage of methane was 89.72 % and confirmed close to RSM result. Keywords: Optimization, Response Surface Methodology, Sewage Sludge, Ultrasonic, Membrane, Anaerobic Digestion.
IJRET : International Journal of Research in Engineering and Technology is an international peer reviewed, online journal published by eSAT Publishing House for the enhancement of research in various disciplines of Engineering and Technology. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of Engineering and Technology. We bring together Scientists, Academician, Field Engineers, Scholars and Students of related fields of Engineering and Technology
Mechanical properties of hybrid fiber reinforced concrete for pavementseSAT Journals
Abstract
The effect of addition of mono fibers and hybrid fibers on the mechanical properties of concrete mixture is studied in the present
investigation. Steel fibers of 1% and polypropylene fibers 0.036% were added individually to the concrete mixture as mono fibers and
then they were added together to form a hybrid fiber reinforced concrete. Mechanical properties such as compressive, split tensile and
flexural strength were determined. The results show that hybrid fibers improve the compressive strength marginally as compared to
mono fibers. Whereas, hybridization improves split tensile strength and flexural strength noticeably.
Keywords:-Hybridization, mono fibers, steel fiber, polypropylene fiber, Improvement in mechanical properties.
Material management in construction – a case studyeSAT Journals
Abstract
The objective of the present study is to understand about all the problems occurring in the company because of improper application
of material management. In construction project operation, often there is a project cost variance in terms of the material, equipments,
manpower, subcontractor, overhead cost, and general condition. Material is the main component in construction projects. Therefore,
if the material management is not properly managed it will create a project cost variance. Project cost can be controlled by taking
corrective actions towards the cost variance. Therefore a methodology is used to diagnose and evaluate the procurement process
involved in material management and launch a continuous improvement was developed and applied. A thorough study was carried
out along with study of cases, surveys and interviews to professionals involved in this area. As a result, a methodology for diagnosis
and improvement was proposed and tested in selected projects. The results obtained show that the main problem of procurement is
related to schedule delays and lack of specified quality for the project. To prevent this situation it is often necessary to dedicate
important resources like money, personnel, time, etc. To monitor and control the process. A great potential for improvement was
detected if state of the art technologies such as, electronic mail, electronic data interchange (EDI), and analysis were applied to the
procurement process. These helped to eliminate the root causes for many types of problems that were detected.
Managing drought short term strategies in semi arid regions a case studyeSAT Journals
Abstract
Drought management needs multidisciplinary action. Interdisciplinary efforts among the experts in various fields of the droughts
prone areas are helpful to achieve tangible and permanent solution for this recurring problem. The Gulbarga district having the total
area around 16, 240 sq.km, and accounts 8.45 per cent of the Karnataka state area. The district has been situated with latitude 17º 19'
60" North and longitude of 76 º 49' 60" east. The district is situated entirely on the Deccan plateau positioned at a height of 300 to
750 m above MSL. Sub-tropical, semi-arid type is one among the drought prone districts of Karnataka State. The drought
management is very important for a district like Gulbarga. In this paper various short term strategies are discussed to mitigate the
drought condition in the district.
Keywords: Drought, South-West monsoon, Semi-Arid, Rainfall, Strategies etc.
Life cycle cost analysis of overlay for an urban road in bangaloreeSAT Journals
Abstract
Pavements are subjected to severe condition of stresses and weathering effects from the day they are constructed and opened to traffic
mainly due to its fatigue behavior and environmental effects. Therefore, pavement rehabilitation is one of the most important
components of entire road systems. This paper highlights the design of concrete pavement with added mono fibers like polypropylene,
steel and hybrid fibres for a widened portion of existing concrete pavement and various overlay alternatives for an existing
bituminous pavement in an urban road in Bangalore. Along with this, Life cycle cost analyses at these sections are done by Net
Present Value (NPV) method to identify the most feasible option. The results show that though the initial cost of construction of
concrete overlay is high, over a period of time it prove to be better than the bituminous overlay considering the whole life cycle cost.
The economic analysis also indicates that, out of the three fibre options, hybrid reinforced concrete would be economical without
compromising the performance of the pavement.
Keywords: - Fatigue, Life cycle cost analysis, Net Present Value method, Overlay, Rehabilitation
Laboratory studies of dense bituminous mixes ii with reclaimed asphalt materialseSAT Journals
Abstract
The issue of growing demand on our nation’s roadways over that past couple of decades, decreasing budgetary funds, and the need to
provide a safe, efficient, and cost effective roadway system has led to a dramatic increase in the need to rehabilitate our existing
pavements and the issue of building sustainable road infrastructure in India. With these emergency of the mentioned needs and this
are today’s burning issue and has become the purpose of the study.
In the present study, the samples of existing bituminous layer materials were collected from NH-48(Devahalli to Hassan) site.The
mixtures were designed by Marshall Method as per Asphalt institute (MS-II) at 20% and 30% Reclaimed Asphalt Pavement (RAP).
RAP material was blended with virgin aggregate such that all specimens tested for the, Dense Bituminous Macadam-II (DBM-II)
gradation as per Ministry of Roads, Transport, and Highways (MoRT&H) and cost analysis were carried out to know the economics.
Laboratory results and analysis showed the use of recycled materials showed significant variability in Marshall Stability, and the
variability increased with the increase in RAP content. The saving can be realized from utilization of recycled materials as per the
methodology, the reduction in the total cost is 19%, 30%, comparing with the virgin mixes.
Keywords: Reclaimed Asphalt Pavement, Marshall Stability, MS-II, Dense Bituminous Macadam-II
Laboratory investigation of expansive soil stabilized with natural inorganic ...eSAT Journals
Abstract
Soil stabilization has proven to be one of the oldest techniques to improve the soil properties. Literature review conducted revealed
that uses of natural inorganic stabilizers are found to be one of the best options for soil stabilization. In this regard an attempt has
been made to evaluate the influence of RBI-81 stabilizer on properties of black cotton soil through laboratory investigations. Black
cotton soil with varying percentages of RBI-81 viz., 0, 0.5, 1, 1.5, 2, and 2.5 percent were studied for moisture density relationships
and strength behaviour of soils. Also the effect of curing period was evaluated as literature review clearly emphasized the strength
gain of soils stabilized with RBI-81 over a period of time. The results obtained shows that the unconfined compressive strength of
specimens treated with RBI-81 increased approximately by 250% for a curing period of 28 days as compared to virgin soil. Further
the CBR value improved approximately by 400%. The studies indicated an increasing trend for soil strength behaviour with
increasing percentage of RBI-81 suggesting its potential applications in soil stabilization.
Influence of reinforcement on the behavior of hollow concrete block masonry p...eSAT Journals
Abstract
Reinforced masonry was developed to exploit the strength potential of masonry and to solve its lack of tensile strength. Experimental
and analytical studies have been carried out to investigate the effect of reinforcement on the behavior of hollow concrete block
masonry prisms under compression and to predict ultimate failure compressive strength. In the numerical program, three dimensional
non-linear finite elements (FE) model based on the micro-modeling approach is developed for both unreinforced and reinforced
masonry prisms using ANSYS (14.5). The proposed FE model uses multi-linear stress-strain relationships to model the non-linear
behavior of hollow concrete block, mortar, and grout. Willam-Warnke’s five parameter failure theory has been adopted to model the
failure of masonry materials. The comparison of the numerical and experimental results indicates that the FE models can successfully
capture the highly nonlinear behavior of the physical specimens and accurately predict their strength and failure mechanisms.
Keywords: Structural masonry, Hollow concrete block prism, grout, Compression failure, Finite element method,
Numerical modeling.
Influence of compaction energy on soil stabilized with chemical stabilizereSAT Journals
Abstract
Increase in traffic along with heavier magnitude of wheel loads cause rapid deterioration in pavements. There is a need to improve
density, strength of soil subgrade and other pavement layers. In this study an attempt is made to improve the properties of locally
available loamy soil using twin approaches viz., i) increasing the compaction of soil and ii) treating the soil with chemical stabilizer.
Laboratory studies are carried out on both untreated and treated soil samples compacted by different compaction efforts. Studies
show that increase in compaction effort results in increase in density of soil. However in soil treated with chemical stabilizer, rate of
increase in density is not significant. The soil treated with chemical stabilizer exhibits improvement in both strength and performance
properties.
Keywords: compaction, density, subgradestabilization, resilient modulus
Geographical information system (gis) for water resources managementeSAT Journals
Abstract
Water resources projects are inherited with overlapping and at times conflicting objectives. These projects are often of varied sizes
ranging from major projects with command areas of millions of hectares to very small projects implemented at the local level. Thus,
in all these projects there is seldom proper coordination which is essential for ensuring collective sustainability.
Integrated watershed development and management is the accepted answer but in turn requires a comprehensive framework that can
enable planning process involving all the stakeholders at different levels and scales is compulsory. Such a unified hydrological
framework is essential to evaluate the cause and effect of all the proposed actions within the drainage basins.
The present paper describes a hydrological framework developed in the form of a Hydrologic Information System (HIS) which is
intended to meet the specific information needs of the various line departments of a typical State connected with water related aspects.
The HIS consist of a hydrologic information database coupled with tools for collating primary and secondary data and tools for
analyzing and visualizing the data and information. The HIS also incorporates hydrological model base for indirect assessment of
various entities of water balance in space and time. The framework would be maintained and updated to reflect fully the most
accurate ground truth data and the infrastructure requirements for planning and management.
Keywords: Hydrological Information System (HIS); WebGIS; Data Model; Web Mapping Services
Forest type mapping of bidar forest division, karnataka using geoinformatics ...eSAT Journals
Abstract
The study demonstrate the potentiality of satellite remote sensing technique for the generation of baseline information on forest types
including tree plantation details in Bidar forest division, Karnataka covering an area of 5814.60Sq.Kms. The Total Area of Bidar
forest division is 5814Sq.Kms analysis of the satellite data in the study area reveals that about 84% of the total area is Covered by
crop land, 1.778% of the area is covered by dry deciduous forest, 1.38 % of mixed plantation, which is very threatening to the
environmental stability of the forest, future plantation site has been mapped. With the use of latest Geo-informatics technology proper
and exact condition of the trees can be observed and necessary precautions can be taken for future plantation works in an appropriate
manner
Keywords:-RS, GIS, GPS, Forest Type, Tree Plantation
Factors influencing compressive strength of geopolymer concreteeSAT Journals
Abstract
To study effects of several factors on the properties of fly ash based geopolymer concrete on the compressive strength and also the
cost comparison with the normal concrete. The test variables were molarities of sodium hydroxide(NaOH) 8M,14M and 16M, ratio of
NaOH to sodium silicate (Na2SiO3) 1, 1.5, 2 and 2.5, alkaline liquid to fly ash ratio 0.35 and 0.40 and replacement of water in
Na2SiO3 solution by 10%, 20% and 30% were used in the present study. The test results indicated that the highest compressive
strength 54 MPa was observed for 16M of NaOH, ratio of NaOH to Na2SiO3 2.5 and alkaline liquid to fly ash ratio of 0.35. Lowest
compressive strength of 27 MPa was observed for 8M of NaOH, ratio of NaOH to Na2SiO3 is 1 and alkaline liquid to fly ash ratio of
0.40. Alkaline liquid to fly ash ratio of 0.35, water replacement of 10% and 30% for 8 and 16 molarity of NaOH and has resulted in
compressive strength of 36 MPa and 20 MPa respectively. Superplasticiser dosage of 2 % by weight of fly ash has given higher
strength in all cases.
Keywords: compressive strength, alkaline liquid, fly ash
Experimental investigation on circular hollow steel columns in filled with li...eSAT Journals
Abstract
Composite Circular hollow Steel tubes with and without GFRP infill for three different grades of Light weight concrete are tested for
ultimate load capacity and axial shortening , under Cyclic loading. Steel tubes are compared for different lengths, cross sections and
thickness. Specimens were tested separately after adopting Taguchi’s L9 (Latin Squares) Orthogonal array in order to save the initial
experimental cost on number of specimens and experimental duration. Analysis was carried out using ANN (Artificial Neural
Network) technique with the assistance of Mini Tab- a statistical soft tool. Comparison for predicted, experimental & ANN output is
obtained from linear regression plots. From this research study, it can be concluded that *Cross sectional area of steel tube has most
significant effect on ultimate load carrying capacity, *as length of steel tube increased- load carrying capacity decreased & *ANN
modeling predicted acceptable results. Thus ANN tool can be utilized for predicting ultimate load carrying capacity for composite
columns.
Keywords: Light weight concrete, GFRP, Artificial Neural Network, Linear Regression, Back propagation, orthogonal
Array, Latin Squares
Experimental behavior of circular hsscfrc filled steel tubular columns under ...eSAT Journals
Abstract
This paper presents an outlook on experimental behavior and a comparison with predicted formula on the behaviour of circular
concentrically loaded self-consolidating fibre reinforced concrete filled steel tube columns (HSSCFRC). Forty-five specimens were
tested. The main parameters varied in the tests are: (1) percentage of fiber (2) tube diameter or width to wall thickness ratio (D/t
from 15 to 25) (3) L/d ratio from 2.97 to 7.04 the results from these predictions were compared with the experimental data. The
experimental results) were also validated in this study.
Keywords: Self-compacting concrete; Concrete-filled steel tube; axial load behavior; Ultimate capacity.
Evaluation of punching shear in flat slabseSAT Journals
Abstract
Flat-slab construction has been widely used in construction today because of many advantages that it offers. The basic philosophy in
the design of flat slab is to consider only gravity forces; this method ignores the effect of punching shear due to unbalanced moments
at the slab column junction which is critical. An attempt has been made to generate generalized design sheets which accounts both
punching shear due to gravity loads and unbalanced moments for cases (a) interior column; (b) edge column (bending perpendicular
to shorter edge); (c) edge column (bending parallel to shorter edge); (d) corner column. These design sheets are prepared as per
codal provisions of IS 456-2000. These design sheets will be helpful in calculating the shear reinforcement to be provided at the
critical section which is ignored in many design offices. Apart from its usefulness in evaluating punching shear and the necessary
shear reinforcement, the design sheets developed will enable the designer to fix the depth of flat slab during the initial phase of the
design.
Keywords: Flat slabs, punching shear, unbalanced moment.
Evaluation of performance of intake tower dam for recent earthquake in indiaeSAT Journals
Abstract
Intake towers are typically tall, hollow, reinforced concrete structures and form entrance to reservoir outlet works. A parametric
study on dynamic behavior of circular cylindrical towers can be carried out to study the effect of depth of submergence, wall thickness
and slenderness ratio, and also effect on tower considering dynamic analysis for time history function of different soil condition and
by Goyal and Chopra accounting interaction effects of added hydrodynamic mass of surrounding and inside water in intake tower of
dam
Key words: Hydrodynamic mass, Depth of submergence, Reservoir, Time history analysis,
Evaluation of operational efficiency of urban road network using travel time ...eSAT Journals
Abstract
Efficiency of the road network system is analyzed by travel time reliability measures. The study overlooks on an important measure of
travel time reliability and prioritizing Tiruchirappalli road network. Traffic volume and travel time were collected using license plate
matching method. Travel time measures were estimated from average travel time and 95th travel time. Effect of non-motorized vehicle
on efficiency of road system was evaluated. Relation between buffer time index and traffic volume was created. Travel time model has
been developed and travel time measure was validated. Then service quality of road sections in network were graded based on
travel time reliability measures.
Keywords: Buffer Time Index (BTI); Average Travel Time (ATT); Travel Time Reliability (TTR); Buffer Time (BT).
Estimation of surface runoff in nallur amanikere watershed using scs cn methodeSAT Journals
Abstract
The development of watershed aims at productive utilization of all the available natural resources in the entire area extending from
ridge line to stream outlet. The per capita availability of land for cultivation has been decreasing over the years. Therefore, water and
the related land resources must be developed, utilized and managed in an integrated and comprehensive manner. Remote sensing and
GIS techniques are being increasingly used for planning, management and development of natural resources. The study area, Nallur
Amanikere watershed geographically lies between 110 38’ and 110 52’ N latitude and 760 30’ and 760 50’ E longitude with an area of
415.68 Sq. km. The thematic layers such as land use/land cover and soil maps were derived from remotely sensed data and overlayed
through ArcGIS software to assign the curve number on polygon wise. The daily rainfall data of six rain gauge stations in and around
the watershed (2001-2011) was used to estimate the daily runoff from the watershed using Soil Conservation Service - Curve Number
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watershed. Hence, in the present study an attempt has been made to understand the hydrological process of the catchment at the
watershed level by drawing the inferences from moprhometric analysis and runoff. The study area chosen for the present study is
Yagachi catchment situated in Chickamaglur and Hassan district lies geographically at a longitude 75⁰52’08.77”E and
13⁰10’50.77”N latitude. It covers an area of 559.493 Sq.km. Morphometric analysis is carried out to estimate morphometric
parameters at Micro-watershed to understand the hydrological response of the catchment at the Micro-watershed level. Daily runoff
is estimated using USDA SCS curve number model for a period of 10 years from 2001 to 2010. The rainfall runoff relationship of the
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Treatability study of cetp wastewater using physico chemical process-a case study
1. IJRET: International Journal of Research in Engineering and Technology ISSN: 2319-1163
__________________________________________________________________________________________
Volume: 02 Issue: 04 | Apr-2013, Available @ http://www.ijret.org 524
TREATABILITY STUDY OF CETP WASTEWATER USING PHYSICO-
CHEMICAL PROCESS-A CASE STUDY
Prashant K. Lalwani1
, Malu D. Devadasan2
1, 2
Asst Professor, Civil Engineering Department, Ganpat University, Gujarat, India,
prashant.lalwani86@gmail.com, maludeav@gmail.com
Abstract
The present study is focused on a Common Effluent Treatment Plant (CETP) located at Umaraya, District Baroda. Waste water from
about thirty five small and medium scale industries majorly comprising of chemical manufacturing and pharmaceutical industries are
treated in this CETP. The incoming wastewater was collected and mixed to prepare samples. They were then oxidized by Fenton’s
reagent (Fe2+
/H2O2) reduction in COD and BOD were observed at different H2O2 and FeSO4 doses to determine the optimum values.
Thereafter pretreated wastewater was subjected to filtration with ordinary charcoal and COD and BOD reductions were noted.COD
and BOD reduction of 64.35% and 68.57% respectively was achieved by Fenton’s reagent and after filtration the values were well
within the disposal standards. The results clearly indicate that conventional system should be replaced by physicochemical process
like oxidation and filtration.
Index Terms: CETP, COD and BOD reduction, Fenton’s Reagent, Charcoal Filtration
-----------------------------------------------------------------------***-----------------------------------------------------------------------
1. INTRODUCTION
During the last few years the concept of CETP for the
different small and medium scale industrial estates in the
Gujarat state has developed with a great speed. One of these
CETP has been established for the cluster of industries in
western side of Baroda district particularly between Padra
Taluka and Jambusar Taluka. M/s Enviro Infrastructure Co.
Ltd. (EICL), village Umaraya, Taluka Padra has set up a
Common Effluent Treatment Plant (CETP). The plant is
located on Effluent Channel Road. The CETP was
commissioned on 1st May 2000. CETP was set up to cater
Small and Medium scale industries situated in and around
Padra & Jambusar Districts.
These small scale industries go on expanding and as per the
market demand they change their processes also. Therefore the
composite wastewater strength on which a CETP is designed
is also getting changed in every couple of years. Because of
these changes in the parameters of the composite wastewater it
is observed that the present CETP is not able to treat the
composite effluent in an efficient manner. It may happen that
the entire biological treatment along with the primary
treatment also gets totally and /or partially disturbed. The
study here is aimed for some modifications in the CETP, for
maintaining two of the important parameter COD and BOD of
the treated waste water from CETP as they do not meet the
required GPCB (Gujarat Pollution Control Board) disposal
standards to discharge into ECP (Effluent Channel Pipe)
which is a closed effluent channel that carries the effluent to
Bay of Cambay.
This is achieved by oxidizing the wastewater by Fenton’s
reagent (Fe2+
/H2O2) and then filtering it through ordinary
charcoal. The reduction in COD and BOD are observed and
design proposal for oxidation and filtration unit is provided.
Such advanced physico-chemical processes, can take much
higher fluctuating load and characteristics of inlet effluent as
compared to conventional biological treatment methods [1].
1.1 Field Study
At present, there are 52 member units, out of which only 35
member industries are discharging their waste water at CETP.
As only 35 industries are working the study is carried out only
for composite waste water of these industries, discharged into
equalization tank of CETP. The following table shows the
type of industries and their effluent contributions.
Table -1: Category of Industries and their contribution to the
CETP
Sr.
No
Category
No of
Industr
ies
Effluent
flow
(m3
/d)
1
Chemical manufacturing
industries
25 144
2
Pharmaceutical
industries
8 446
3
Glass manufacturing
industries
1 10
4 Others 1 0.4
Total flow 600.4
2. IJRET: International Journal of Research in Engineering and Technology ISSN: 2319-1163
__________________________________________________________________________________________
Volume: 02 Issue: 04 | Apr-2013, Available @ http://www.ijret.org 525
1.2 Present Condition of the CETP
CETP at Umaraya is provided for treatment of about 52
member industries. The present CETP is designed for 2250
m3/d of flow. The present CETP needs modification because
though the quantity of flow is very less (600.4 m3/d) than the
designed capacity, the parameters like COD, BOD, NH3-N,
SS and oil & grease after final treatment comes out to be
450,150, 87.8, 484 and 25mg/L respectively which do not
meet the GPCB disposal standard into ECP which are
250,100, 50, 100 and 20 mg/L respectively.
The effluent is received from different industries through a
rubber lined tanker. Before the effluent is loaded in the
equalization tank, the effluent parameters are measured and
then only effluent is loaded in the equalization tank. From
here, the effluent is lifted to Flash Mixer. At this tank,
continuous dosing of hydrated lime and Aluminum Sulfate
(Alum) slurry is added for flocculation and coagulation. After
mixing, the effluent is transferred to Primary Settling Tank. As
per original treatment scheme (2250 m3/day), two stage
Aeration followed by Secondary Clarifier treatment process
was provided. As the present effluent quantity is very less only
one compartment of Aeration Tank is used. At tertiary
treatment level, four Dual Media Filter tanks and chlorination
unit is provided.
2. MATERIALS AND METHODS
2.1 Materials
All chemicals employed in this study were analytical grade.
All solutions were prepared in distilled-deionized water made
on each experimental day. Glassware used in this work was
soaked with HNO3 (~10%) for 24 h, and rinsed with distilled-
deionized water prior to drying. Hydrogen peroxide was
prepared by using the analytical grade (30% by wt.) H2O2 as
purchased. The ferrous sulphate heptahydrate (FeSO4.7H2O)
was used as the source of Fe2+ in the Fenton process.
Solutions of NaOH and HCl were used for pH adjustments.
Ordinary charcoal (analytical grade) used as purchased.
2.2 Experimental Procedure
2.2.1Oxidation by Fenton’s Reagent
A 100 ml volume samples were prepared by collecting
wastewater directly from various tankers coming to CETP on
approximately weekly basis and mixing it. There initial COD
and BOD was measured and then treated with different H2O2
dose (3, 4,5ml) to obtain optimum dose using 1mg FeSO4, 4
pH, 60 min contact time and 32oC temperature. This process
was repeated using optimum H2O2 dose for varying FeSO4
dose (0.5, 1, 1.5, 2mg) and graph was plotted (Chart-1 & 2).
The sludge formation was 3ml.
2.2.2 Filtration by Ordinary Charcoal
In the laboratory filter media was prepared using charcoals of
size 1 cm. They were filled in burette (standard 50ml) which
acted as a filter media column. The height of charcoal column
was 7 cm with diameter 4.5 cm. The flow rate through the
column was maintained at 60 ml/min. 4ml of 1N NaOH was
used to bring pH of wastewater after oxidation from 2.9 to 7.5.
Volume and weight of charcoal column was 269.39 cm3 250
gm respectively. Sample volume of 1, 2, 3, 4 L pre treated
wastewater were prepared and passed through this filter
column. Reduction in COD and BOD were noted as shown in
Table 2.
3. RESULTS AND DISCUSSION
After optimization of Fenton’s reaction, COD and BOD
reduced at optimized pH, H2O2 and FeSO4 dosing was found
to be 64.35% and 68.57% respectively. The optimum pH,
contact time, H2O2 and FeSO4 dosing was found to be 4, 60
min, 4ml and 1mg respectively at temperature 32oC for the
mixed wastewater [2, 3, 4]. The results of filtration with
ordinary charcoal are shown in Table 2 [5, 6]. The end result
indicates that after filtration, the reduction in COD, BOD,
NH3-N, SS and oil & grease values are 82.6%, 91.24%,
54.44%, 81.4% and 40% respectively which meets the
disposal standards. Earlier during conventional treatment these
values were higher than prescribed standards. Through these
tests we can propose modification in the CETP for proper
treatment of industrial wastewaters. Design for oxidation and
filtration unit to replace the conventional treatment system has
been shown in Table 3 [7, 8, 9]. When the analysis work was
started out the flow coming to CETP was 600m3/d. At present
the flow coming to the CETP is 700 m3/d which is been
increased during analysis period of about 6 months. Looking
to the present increase in the incoming flow of the CETP, the
design has been modified for two times of the present flow
coming to the CETP.
There is no need of any additional equalization tank as two
numbers of equalization tanks each of capacity 1175 m3 is
already present. The clarifier can be used after oxidation
process to remove the sludge and then wastewater can be fed
to neutralization tank for filtration process. There is no need
for any additional filter column. The present columns are
sufficient for the treatment only change of media to charcoal is
needed.
3. IJRET: International Journal of Research in Engineering and Technology ISSN: 2319-1163
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Volume: 02 Issue: 04 | Apr-2013, Available @ http://www.ijret.org 526
Chart -1: Optimum H2O2 dosing for mixed wastewater
Chart -2: Optimum Iron dosing for mixed wastewater
Table -2: Result of Filtration of pretreated wastewater with
ordinary Charcoal
Sample
volume
(L)
COD
mg/L
After
filtration
COD
(mg/L)
COD
reduction
(%)
BOD
mg/L
After
filtration
BOD
(mg/L)
BOD
reduction
(%)
1
410
200 51.22
110
30 72.72
2 242 40.97 50 54.54
3 310 24.39 75 31.81
4 395 3.66 105 4.54
Table -3: Design of oxidation and filtration unit
Design maximum flow 1400 m3
/d
1 N HCL Solution Tank, 30% H2O2 Solution Tank and 1 N
NaOH Solution TankQuantity of 1 N HCL used 4 ml/L
Total quantity of 1 N HCL
required
5.6 m3
/day
Depth 1.3 m + 0.3 m FB
Surface area 4.30 m2
Configuration Circular with Dia = 2.35
m1 N HCL Mixing Tank For pH Adjustment and 1 N NaOH
Mixing Tank For pH Adjustment
Detention time 30 min
Volume of tank 30 m3
Depth 3 m + 0.3 m FB
Surface area 10 m2
Configuration Square with L:B = 3.2 m
Power required, P 2.0 HP (2.72 KW)
Power per unit flow 90.78 W
Diameter of impeller 0.64 m
Velocity at the tip of the impeller 3.35 m/sec
Area of blades 0.20 m2
Size of one blade 0.12m x 0.12m.
Number of blades 14 nos.
H2O2 and FeSO4 Mixing Tank
Detention time 60 min
Volume of tank 58.33 m3
Depth 3 m + 0.3 m FB
Surface area 19.44 m2
Configuration Square with L:B = 4.4 m
Power required, P 7 HP (5.3 KW)
Power per unit flow 90.78 W
Diameter of impeller 0.88 m
Velocity at the tip of the impeller 4.6 m/sec
Area of blades 0. 14 m2
Size of one blade 0.12m x 0.12m.
Number of blades 10 nos.
Design Of Settling (Neutralization )Tank
Design average flow 700 m3
/day
Influent Pipe Diameter 100mm
Surface area of tank 23.8 m2
Diameter of tank 5.5 m
Detention time 30 min
Depth of tank 2.80 m
Design Of Simple Charcoal Filter:-
Design average flow 700 m3
/day
Filtration rate 5 m3
/ m2
. hr
Surface wash rate 0.061 m3
/m2
.min
Minimum Filtration cycle 24 hr
Filter media size 1.0 cm
CONCLUSIONS
From the above experiments we can conclude that
conventional biological treatment of the CETP should be
replaced with physico-chemical process like advanced
oxidation process and filtration unit as incoming COD value is
more than 1000mg/L majorly consisting of non-biodegradable
4. IJRET: International Journal of Research in Engineering and Technology ISSN: 2319-1163
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Volume: 02 Issue: 04 | Apr-2013, Available @ http://www.ijret.org 527
load. The oxidation and filtration should be carried out with
Fenton’s reagent and ordinary charcoal.
ACKNOWLEDGEMENTS
The authors would like to acknowledge CETP, Umaraya for
the assistance rendered
REFERENCES:
[1] Metcalf and Eddy, Wastewater Engineering:
Treatment and Reuse (Tata McGraw-Hill, Fourth
edition, 2003).
[2] Putri F. Khamaruddin, M. Azmi Bustam and A. Aziz
Omar, Using Fenton’s Reagents for the Degradation
of Diisopropanolamine: Effect of Temperature and
pH, International Conference on Environment and
Industrial Innovation IPCBEE 12, Singapore, 2011,
12-17.
[3] Qingxuan Zhang and Guohua Yang, The removal of
COD from refinery wastewater by Fenton reagent,
IEEE Conference (RSETE), China, 2011, 7974 –
7977.
[4] Lech Kos, Karina Michalska and Jan Perkowski,
Textile Wastewater Treatment by the Fenton Method,
Fibres & Textiles in Eastern Europe, 18 (4), 2010,
105-109.
[5] Hamdy Seif and Moheb Malak, Textile Wastewater
Treatment, Sixth International Water Technology
Conference (IWTC), Egypt, 2001, 608-614.
[6] Aijiao Zhou, Tao Tao, Zhaohui Bian and Yong
Zhang, Effect of Charcoal Media for the Treatment of
Wastewater in a Biological Filter, IEEE Conference
(ICBBE), China, 2008, 3527 – 3530.
[7] CPHEEO, Manual on sewerage and sewage
treatment (Ministry of Urban Development,
Government of India, Second Edition, 1993)
[8] S. K. Garg, Environmental Engineering - II : Sewage
Disposal and Air Pollution Engineering (Khanna
Publishers, 2010)
[9] Dr. B. C. Punmia, Ashok K. Jain and Arun K. Jain,
Environmental Engineering-II: Wastewater
Engineering (Laxmi Publications, 2010)
BIOGRAPHIES:
Prashant K. Lalwani, Asst Professor, Civil Enginering Dept,
U V Patel College of Engineering, Ganpat University,
Gujarat-384012, India, E-mail:
prashant.lalwani86@gmail.com
Malu D. Devadasan, Asst Professor, Civil Enginering Dept
U V Patel College of Engineering, Ganpat University,
Gujarat-384012, India, E-mail: maludeav@gmail.com