The document discusses trickling filters, which are used in sewage treatment to remove suspended solids and dissolved organic loads from wastewater. Trickling filters use microbial populations attached to a filter media to break down organic matter. They consist of a rotating arm that sprays wastewater over a rock or plastic media, with wastewater collected below for further treatment. Trickling filters can be designed as low or high rate systems, with high rate filters having greater organic loading, hydraulic loading, and recirculation ratios compared to low rate filters. Operational issues include ponding, odors, and fly nuisance that can occur if the filters become anaerobic or clogged.
Deals with what is activated sludge, mechanisms and kinetics of treatment, design of activated sludge process, secondary clarifiers and their design and bulking sludge, raising sludge and foaming of ASP.
Lecture notes of Environmental Engineering-II as per Solapur university syllabus of TE CIVIL.
Prepared by
Prof S S Jahagirdar,
Associate Professor,
N K Orchid college of Engg and Technology,
Solapur
WASTE WATER TREATMENT BY AERATED LAGOONS , AN EFFECTIVE METHODOLOGY FOR WASTE WATER TREATMENT ALONG WITH ITS DESIGN FUNDAMENTALS AND WITH ADVANTAGES AND DISADVANTAGES .
Deals with what is activated sludge, mechanisms and kinetics of treatment, design of activated sludge process, secondary clarifiers and their design and bulking sludge, raising sludge and foaming of ASP.
Lecture notes of Environmental Engineering-II as per Solapur university syllabus of TE CIVIL.
Prepared by
Prof S S Jahagirdar,
Associate Professor,
N K Orchid college of Engg and Technology,
Solapur
WASTE WATER TREATMENT BY AERATED LAGOONS , AN EFFECTIVE METHODOLOGY FOR WASTE WATER TREATMENT ALONG WITH ITS DESIGN FUNDAMENTALS AND WITH ADVANTAGES AND DISADVANTAGES .
Deals with UASB reactors for the primary treatment of sewage, stabilization of sludge and removal of BOD. Various components of a UASB reactor are described and design details are included. Modifications to UASB such as UASB ponds, Anaerobic baffle reactors, migrating blanket reactors are also described here.
Primary waste water treatment powerpointb presntationkanchan jadon
This ppt basically depends on primary waste water treatment. It gives brief description about what is water treatment,sources of waste water,types of waste water basically mostly focus on primary treatment like screening,types of screening,description on every type of screens, grit removal,communator,primary sedimentation.
Trickling Filter
A trickling filter is a type of wastewater treatment system.
• A trickling filter , also called trickling biofilter, biofilter, biological filter and biological trickling filter , is a fixed-bed, biological
reactor that operates under (mostly) aerobic conditions.
This presentation includes the basic introduction to sewage/ wastewater, quantity estimation, the basic terms commonly used in the sewerage system, Types of sewer, sewage, and sewerage system.
Deals with UASB reactors for the primary treatment of sewage, stabilization of sludge and removal of BOD. Various components of a UASB reactor are described and design details are included. Modifications to UASB such as UASB ponds, Anaerobic baffle reactors, migrating blanket reactors are also described here.
Primary waste water treatment powerpointb presntationkanchan jadon
This ppt basically depends on primary waste water treatment. It gives brief description about what is water treatment,sources of waste water,types of waste water basically mostly focus on primary treatment like screening,types of screening,description on every type of screens, grit removal,communator,primary sedimentation.
Trickling Filter
A trickling filter is a type of wastewater treatment system.
• A trickling filter , also called trickling biofilter, biofilter, biological filter and biological trickling filter , is a fixed-bed, biological
reactor that operates under (mostly) aerobic conditions.
This presentation includes the basic introduction to sewage/ wastewater, quantity estimation, the basic terms commonly used in the sewerage system, Types of sewer, sewage, and sewerage system.
Lecture notes of Environmental Engineering-II as per Solapur university syllabus of TE CIVIL.
Prepared by
Prof S S Jahagirdar,
Associate Professor,
N K Orchid college of Engg and Technology,
Solapur
Introduction: Wastewater flow and its characteristics, Wastewater collection systems, Estimation and variation of wastewater flows. Problems of industrial wastewaters, sampling protocol, equalization, neutralization, proportioning processes, volume and strength reduction. Preliminary, primary, secondary and tertiary wastewater treatment processes. Theory
and design of screens, grit chambers, sedimentation, coagulation, flocculation
Lecture notes of Environmental Engineering-II as per Solapur university syllabus of TE CIVIL.
Prepared by
Prof S S Jahagirdar,
Associate Professor,
N K Orchid college of Engg and Technology,
Solapur
Water scarcity is the lack of fresh water resources to meet the standard water demand. There are two type of water scarcity. One is physical. The other is economic water scarcity.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
3. TYPES
OF
FILTERS
• CONTACT BEDS
• INTERMITTENT SAND FILTERS
• TRICKLING SAND FILTERS
• IT IS USED TO REMOVE THE SUSPENDED SOLIDS & THE DISSOLVED
ORGANIC LOAD FROM THE WW BY USING MICROBIAL POPULATIONS.
THE MICROORGANISMS ARE RESPONSIBLE FOR DEGRADATION OF THE
ORGANIC MATTER
4. BIOLOGICAL
PROCESSES• SUSPENDED GROWTH PROCESS
• IF THE MICRO-ORGANISMS ARE SUSPENDED IN THE WW DURING
BIOLOGICAL OPERATION THEN PROCESS IS KNOWN AS SUSPENDED
GROWTH PROCESSES
• ATTACHED GROWTH PROCESS
• PROCESS IN WHICH THE MICRO-ORGANISMS THAT ARE ATTACHED TO A
SURFACE OVER WHICH THEY GROW IS KNOWN AS ATTACHED GROWTH
PROCESSES
• COMBINE PROCESS
• THESE CONSISTS OF BOTH ATTACHED GROWTH AS WELL AS SUSPENDED
GROWTH PROCESSES
Bio-film
Or
Slime layer
Bacteria Liquid Supporting
medium
(Stones)
5. TRICKLING FILTER THEORY
• Purification by aerobic decomposition of organic
matter
•A biological film is formed around filtering media by
micro-organisms
•Outer portion of this film is called as Slime layer
•As thickness of slime layer increases
•It creates anaerobic environment near to the surface
of filtering media
•Micro-organisms goes into endogenous phase of
growth and loose their ability to cling to media surface
•Shearing action of sewage
•Sloughing (the break up of biomass from slime layer)
7. TRICKLING
FILTER
COMPONENTSTF CONSISTS OF MAINLY FOLLOWING PARTS/COMPONENTS:
•A rotating arm that sprays wastewater over a filter medium by
spray nozzels
•Filter media: rocks, plastic, aggregates or other materials are used.
size of material (25 mm to 75 mm)
•Under drainage system: The water is collected at the bottom of
the filter for further treatment.
8. TRICKLING FILTERS
Effluent
Influent
•Filter walls: Walls are made
honeycombed to circulate the
air. Some times ventilation duct is
provided
•Depth: Depth of media is 1.8
to 2.4m
•Honeycomb structured wall
is provided for circulation of air.
9. TYPES OF
TRICKLING
FILTER
Two Stage High Rate Trickling Filter
Recirculation flow
Alternate return
A part of
effluent
recirculated
Single Stage High Rate Trickling Filter
intermediate1st 2nd
effluent
effluent
Recirculation flow
Recirculation flow
Conventional or Low Rate Trickling Filter
10. TRICKLING
FILTERS DESIGN
CONSIDERATION
• HYDRAULIC LOADING
• IT IS RATIO OF DISCHARGE OR FLOW RATE TO THE
SURFACE AREA
• UNITS – CUBIC M/SQ. M/DAY
• ORGANIC LOADING
• IT IS RATIO OF BOD LOAD TO VOLUME OF FILTER
MEDIA.
• ORGANIC LOADING = (Q X BOD5)/V
• THEREFORE , V = BOD5 X Q/ ORGANIC LOADING
• UNITS- KG OR GM. OF BOD/ M3 OF VOLUME/D
• EFFICIENCY
Organic
loading in
kg/ha-m/day
11. V=FILTER VOLUME IN HECTARE-METER
F=RECIRCULATION FACTOR
TRICKLING
FILTERS DESIGN
CONSIDERATION
• EFFICIENCY (HIGH RATE TRICKLING FILTER)
N= EFFICIENCY IN %
Y=TOTAL ORGANIC LOAD IN KG/DAY
V=FILTER VOLUME IN HECTARE-METER
F=RECIRCULATION FACTOR
• RECIRCULATION FACTOR (HIGH RATE TRICKLING FILTER)
R= VOLUME OF SEWAGE RECIRCULATED
I= VOLUME OF RAW SEWAGE
R/I =RECIRCULATION RATIO
12. OPERATIONAL
TROUBLE
IN
TRICKLING
FILTERS
• PONDING:-
• EXCESSIVE ORGANIC LOADING WITHOUT A CORRESPONDING HIGHER
RECIRCULATION RATE
• USE OF MEDIA WHICH IS TOO SMALL
• CLOGGING OF UNDER DRAIN SYSTEM
• NON-UNIFORM MEDIA SIZE OR BREAKING UP OF MEDIA
• ASH OR DEBRIS IN FILTER VOIDS
• PONDING CAN CAUSE ODORS AND DECREASE FILTER EFFICIENCY.
13. OPERATIONAL
TROUBLE
IN
TRICKLING
FILTERS
• ODOUR NUISANCE:-
• SINCE THE TRICKLING FILTER IS AN AEROBIC PROCESS, NO SERIOUS
ODORS SHOULD EXIST. IF FOUL ODORS ARE PRESENT, ANAEROBIC
CONDITIONS ARE THE MOST LIKELY CAUSE.
• ANAEROBIC CONDITIONS USUALLY PREDOMINATE NEXT TO THE MEDIA
SURFACE. IF THE SURFACE OF THE SLIME GROWTH IS AEROBIC, ODORS
SHOULD BE MINIMAL.
• IF ODORS ARE PRESENT, CORRECTIVE ACTION SHOULD BE TAKEN
IMMEDIATELY OR THE CONDITION COULD GET WORSE.
• HYDROGEN SULPHIDE GAS IS THE MAIN REASON OF ODOUR AND TO
MINIMIZE IT SEWAGE SHOULD BE CHLORINATED.
14. OPERATIONAL
TROUBLE
IN
TRICKLING
FILTERS
• FLY NUISANCE:-
• THESE ARE TINY, GNAT-SIZE FLIES ARE CALLED PSYCHODA. THEY ARE
OCCASIONALLY FOUND IN GREAT NUMBERS, PREFERRING AN ALTERNATE
WET AND DRY ENVIRONMENT FOR DEVELOPMENT.
• LAY THEIR EGGS IN PONDED WATER. THE FLIES ARE MOST FREQUENTLY
FOUND IN LOW OR STANDARD RATE FILTERS WITH AN INTERMITTENT
DOSING SYSTEM.
• FLUSHING OR WASHING THE SIDE WALLS OF THE FILTER BY OPENING THE
FLAP VALVE AT THE END OF THE DISTRIBUTOR ARM.
