Dry cleaning involves cleaning fabrics with nonaqueous solvents using three steps: washing, spinning to extract solvent, and drying. Two main types of cleaning fluids are used: petroleum solvents and synthetic solvents like perchloroethylene. There are also two types of machines: transfer machines that separate washing and drying, and dry-to-dry machines that integrate all steps. The dry cleaning industry consists of coin-operated facilities, commercial shops, and industrial cleaners. Emissions occur from various sources in the dry cleaning process. Controls include solvent recovery systems using condensers and carbon adsorption to minimize emissions.
Fat determination by Büchi. Comparison between soxhlet and hot extractionLoïc Ehanno
Fat determination is one of the key analyses used for food labelling and quality control. Two extraction methods were compared with respect to practicality and reliability of the results.
The document is a project report for manufacturing MEA TRIAZINE from paraformaldehyde and monoethanol amine. MEA TRIAZINE is used as H2S scavanger in crude oilfields.
This document outlines experiments to determine the alcohol content of herbal formulations using distillation and chromatography methods. It describes the distillation process which involves transferring a sample to a distillation flask with water and pumice, distilling the mixture, and collecting the distillate to measure specific gravity and calculate ethanol percentage. It also describes determining alcohol content using gas chromatography by preparing ethanol standard solutions, diluting samples, injecting them, and using a calibration graph to obtain concentration from peak areas. The overall aim is to quantify the alcohol present in herbal formulations like Asava and Arista.
Isolation, purification and assay of wheat germ acid phosphatase protocolWilmarie Morales-Soto
This document provides a protocol for isolating and purifying acid phosphatase from wheat germ through multiple steps:
1) Crude extraction of wheat germ produces Fraction I. Fraction I is treated with MnCl2 and centrifuged to produce Fraction II.
2) Fraction II is suspended in buffer and centrifuged to produce Fraction III. Fraction III is treated with ammonium sulfate to produce a supernatant and pellet.
3) The pellet is resuspended in buffer to produce Fraction IV. Fraction IV is treated with ammonium sulfate, heated, and chilled to produce a supernatant denoted as the purified Fraction V.
Product purification and recovery remains a priority for chemical engineers, today. Designing separations processes to accomplish the above is a challenge, especially as streams get more complex in composition. Though often overlooked, liquid-liquid extraction (LLE) is a powerful separation technique for both organic and aqueous liquids. Whereas distillation technology relies on relative volatility differences among chemicals, LLE exploits the differences in relative solubilities of compounds in two immiscible liquids, to perform the key separation. Distillation may not be feasible when boiling points are nearly identical or for other reasons, economic and technical. When distillation is not a viable solution, LLE is a great alternative to achieve product purification and recovery.
This document describes the process for manufacturing polyurethane foams. Flexible polyurethane foam is made using a continuous slab stock foaming method where raw materials like polyol, isocyanate, blowing agent, and catalysts are metered into a mixer. The mixed reactants are then poured into a moving paper mold to form a continuous foam block. Common raw materials include polyether polyols, toluene diisocyanate, carbon dioxide or other blowing agents, and tin and amine catalysts. The foam rises to its final volume through the reaction of isocyanate with water to produce carbon dioxide gas.
The document describes the AOAC (1975) method for estimating fat content using a Soxhlet apparatus. A 4 gram sample is placed in a thimble and extracted with solvent for about 2 hours in the Soxhlet apparatus to ensure thorough contact and heating between the sample and solvent. The extracted fat is then weighed to calculate the percentage of fat in the original sample.
The Soxhlet extractor is a piece of laboratory equipment used to extract components from solids. It was invented in 1879 by Franz von Soxhlet to quantify fat in milk. The Soxhlet extractor consists of a boiler, condenser, and thimble containing the solid material. Extraction solvent is heated and circulates through the thimble, dissolving compounds. The process is repeated until extraction is complete, concentrating the compounds in the boiling flask over many hours or days.
Fat determination by Büchi. Comparison between soxhlet and hot extractionLoïc Ehanno
Fat determination is one of the key analyses used for food labelling and quality control. Two extraction methods were compared with respect to practicality and reliability of the results.
The document is a project report for manufacturing MEA TRIAZINE from paraformaldehyde and monoethanol amine. MEA TRIAZINE is used as H2S scavanger in crude oilfields.
This document outlines experiments to determine the alcohol content of herbal formulations using distillation and chromatography methods. It describes the distillation process which involves transferring a sample to a distillation flask with water and pumice, distilling the mixture, and collecting the distillate to measure specific gravity and calculate ethanol percentage. It also describes determining alcohol content using gas chromatography by preparing ethanol standard solutions, diluting samples, injecting them, and using a calibration graph to obtain concentration from peak areas. The overall aim is to quantify the alcohol present in herbal formulations like Asava and Arista.
Isolation, purification and assay of wheat germ acid phosphatase protocolWilmarie Morales-Soto
This document provides a protocol for isolating and purifying acid phosphatase from wheat germ through multiple steps:
1) Crude extraction of wheat germ produces Fraction I. Fraction I is treated with MnCl2 and centrifuged to produce Fraction II.
2) Fraction II is suspended in buffer and centrifuged to produce Fraction III. Fraction III is treated with ammonium sulfate to produce a supernatant and pellet.
3) The pellet is resuspended in buffer to produce Fraction IV. Fraction IV is treated with ammonium sulfate, heated, and chilled to produce a supernatant denoted as the purified Fraction V.
Product purification and recovery remains a priority for chemical engineers, today. Designing separations processes to accomplish the above is a challenge, especially as streams get more complex in composition. Though often overlooked, liquid-liquid extraction (LLE) is a powerful separation technique for both organic and aqueous liquids. Whereas distillation technology relies on relative volatility differences among chemicals, LLE exploits the differences in relative solubilities of compounds in two immiscible liquids, to perform the key separation. Distillation may not be feasible when boiling points are nearly identical or for other reasons, economic and technical. When distillation is not a viable solution, LLE is a great alternative to achieve product purification and recovery.
This document describes the process for manufacturing polyurethane foams. Flexible polyurethane foam is made using a continuous slab stock foaming method where raw materials like polyol, isocyanate, blowing agent, and catalysts are metered into a mixer. The mixed reactants are then poured into a moving paper mold to form a continuous foam block. Common raw materials include polyether polyols, toluene diisocyanate, carbon dioxide or other blowing agents, and tin and amine catalysts. The foam rises to its final volume through the reaction of isocyanate with water to produce carbon dioxide gas.
The document describes the AOAC (1975) method for estimating fat content using a Soxhlet apparatus. A 4 gram sample is placed in a thimble and extracted with solvent for about 2 hours in the Soxhlet apparatus to ensure thorough contact and heating between the sample and solvent. The extracted fat is then weighed to calculate the percentage of fat in the original sample.
The Soxhlet extractor is a piece of laboratory equipment used to extract components from solids. It was invented in 1879 by Franz von Soxhlet to quantify fat in milk. The Soxhlet extractor consists of a boiler, condenser, and thimble containing the solid material. Extraction solvent is heated and circulates through the thimble, dissolving compounds. The process is repeated until extraction is complete, concentrating the compounds in the boiling flask over many hours or days.
Extraction of oil from oil cake by soxhletAsma-ul Husna
This document summarizes an experiment using a Soxhlet extractor to extract oil from oil cake. The objectives were to study the Soxhlet extractor, determine the percentage of extracted oil, and determine the percentage of recovered solvent. The experiment involved extracting oil from oil cake using n-hexane solvent in a Soxhlet apparatus. It was found that 11.31% of the oil was extracted from the cake and 65.5% of the n-hexane solvent was recovered.
1) Ethanol was studied as an alternative solvent to hexane for extracting oil from sunflower collets. Ethanol extracted a similar amount of oil but also extracted more minor components like tocopherols, phospholipids, and sugars compared to hexane.
2) Batch extraction experiments with ethanol were conducted at 50 and 60°C, and extraction kinetics were studied. Oil extraction reached equilibrium, limited by the solubility of extractable material in ethanol.
3) Using ethanol as the solvent extracted about 70% less waxes and at least 38% more tocopherols and phospholipids compared to hexane. It also extracted over 75% of the initial sugar content from the sunflower collets
Internship Report of Unicol Mirpurkhas (Ethanol Distillery)Talal Khan
This is a brief report of Ethanol Distillery situated in Mirpurkhas, Sindh, Pakistan.
It defines the Distillation Process, CO2 Liquification Process, Formation of Bio Gas from Molasses, Water Purification Plant, and Boiler working in Unicol Distillery.
Koch Modular Process Systems presented on extractive distillation. Extractive distillation involves adding a high-boiling solvent to a binary mixture to alter the relative volatility of the components and allow separation via distillation. It can be considered for mixtures that form azeotropes or have low relative volatility. Examples were given of mixtures like acetone/methanol and THF/water that can be separated through extractive distillation using appropriate solvents. Attendees were encouraged to evaluate extractive distillation for difficult separation challenges.
Spices are added to food in small amounts but contribute significantly to sensory qualities through volatile and fixed oils. Quality testing of spices includes determining moisture content, total ash, acid insoluble ash, volatile oils, non-volatile ether extract, crude fiber, and extraneous matter. Standard methods such as Dean-Stark distillation and Karl Fischer titration are used to precisely measure components in a repeatable and reproducible manner for quality assessment, detection of adulteration, and facilitation of spice trade.
I found no good source for extractive distillation on the internet.So i decided to make one myself.This ppt discusses about the technology,its working and benefits.It compares extractive distillation side by side to azeotropic distillation and counts the advantages.
ASE (Accelerated Solvent Extraction) is an extraction technique that uses elevated temperature and pressure to quickly extract oils from oilseeds in minutes using small amounts of solvent. The procedure described extracts oil from canola seeds in 14 minutes using 16 mL of solvent, providing comparable results to traditional methods that take hours and hundreds of mL of solvent. Analysis shows ASE extracts 44.9% oil from canola with little oxidation or degradation occurring at extraction temperatures up to 130°C. ASE is a faster, more efficient technique for extracting oils from oilseeds compared to traditional methods.
Acacia, also known as gum arabic, is a complex mixture of plant polysaccharides that is obtained from the stems and branches of various Acacia tree species. It has various pharmaceutical uses including as an emulsifying, suspending, and binding agent. The document provides details on the source, description, chemical constituents, properties, identification tests, and evaluation tests of acacia to establish its identity and purity for use as an excipient in pharmaceutical products.
Pressurized accelerated extraction of pollutantsBhupander Kumar
Accelerated solvent extraction (ASE) is a technique that uses solvents, elevated temperatures, and pressures to efficiently extract analytes from solid samples. It provides several advantages over traditional techniques like Soxhlet extraction, including requiring smaller sample and solvent volumes and shorter extraction times. Key factors that influence ASE extraction include sample preparation, solvent selection, temperature, pressure, static time, flush volume, and number of cycles. These parameters require optimization for different sample matrixes and target analytes. ASE is useful for extracting pesticides, PAHs, PCBs, and dioxins from soils, sediments, plants and other solid environmental samples.
Flash chromatography is a technique used to rapidly separate mixtures. It uses slightly smaller silica gel particles and pressurized gas to drive solvents through the column faster than gravity chromatography. Key aspects include using a stationary phase like silica gel and solvent systems to differentially elute compounds. Samples can be loaded wet or dry onto the column then eluted with solvents. Flash chromatography provides a fast, economical method for separating gram quantities of compounds in the lab. It has applications in natural products, pharmaceuticals, and other areas.
Working of Continuous Distillation Column jagdeep123
Distillation Column has been widely used in industrial area where chemical processing and waste water treatment plays a significant role. It is also used nowadays in solvent recovery processes.
Treatment of aged transformer oil using dry sludge in lab-scale refining unitPremier Publishers
Experimental analysis of drinking water treatment sludge revealed that it is enriched with aluminum and silicon oxides which are the most metal oxides used in reclamation of transformer insulating oils. The potential use of inexpensive and available water treatment dry sludge as sorbent material for the removal of acidity, water content and some impurities from aged transformer oil by adsorption methodology was investigated using lab-scale refining unit. Dry sludge was found to improve the electrical and physical properties of aged transformer oils.High improvement of breakdown voltage occurs after using dry sludge reclaimed transformer oil and changed from 15 to 72 kV/ cm. Also some improvements have been achieved such as water content changed from 48 to 9 ppm and total acidity changed from 0.37 to 0.01mg KOH/g of oil.Viscosity, specific gravitywere improved. Also, some undesirable gases in aged oil(more than ten years in service) were removed. Furthermore the use of dry sludge as sorbent material renders the treated oil to some extent like new one. Also Dry sludge is available at any water treatment plant with no costs (waste product). Environmentally, after sludge reclamation process for the used transformer oil, the sludge can be recycled by ignition and used in further treatment processes.
This document summarizes test results for demulsifier formulations on two crude oil samples. For the first sample, the best performing individual demulsifier bases were DG270, DB5951, DB9392, DB9947 and W033 based on water dropping and salt content. The top performing formulations were DB9947/DB9392/DB9393 and W033/DB9392/DB9393. For the second sample, the best individual bases were DG270, D3575X, D311, DB9429, and DB9947. The top formulations were W033/DP188/DB9393 and DB9947/DG270/DB9393, which achieved lower salt contents
The document discusses applications of the FUNDABAC® filter system in the oil and gas industry. It is used for amine filtration in acid gas removal plants, removal of salts in MEG regeneration processes, mercury removal from crude oil, produced water filtration, and other processes. The filter system provides advantages of dry discharge of filter cakes, flexibility to changing filtration needs, high filtration efficiency down to 1 micron, and low operating and maintenance costs.
The document discusses various methods of leaching, which is the process of extracting soluble constituents from a solid material using a liquid solvent. It describes several common leaching techniques used in industries like food processing, pharmaceuticals, and metals extraction. These include counter-current leaching systems that improve extraction efficiency, as well as equipment used for leaching like agitated vessels, thickeners, extractors, and the Kennedy and Bollman extractors.
This document summarizes a study on optimizing the extraction of sandalwood oil using subcritical carbon dioxide compared to conventional techniques like steam distillation. Subcritical carbon dioxide extraction at 200 bars and 28°C yielded 4.11% oil in the first hour, higher than other methods and with higher quality as indicated by acid value and santalol content. Analysis found the oil extracted in each hour contained varying amounts of key constituents like α-santalene and β-santalol. The study demonstrates that subcritical carbon dioxide extraction is more efficient and yields higher quality sandalwood oil than conventional techniques like steam distillation.
wholw Content is covered in this presentation .it will give u a basic idea and types about leaching and it will also provide u information via Diagrams .
This document provides instructions and recipes for preparing reagents and performing a western blot analysis. It lists the necessary accessories which include gel components, protein markers, buffers, antibodies, and an ECL kit. Detailed procedures are provided for making separation and stacking gels, preparing protein samples, running the gel electrophoresis, transferring proteins to a membrane, blocking and incubating with primary and secondary antibodies, developing the blot, and capturing results. Precise amounts of reagents are specified for replicating the multi-step process of western blotting.
This document describes a common effluent treatment plant (CETP) designed to treat wastewater from tanneries. It first provides background on tanneries and the wastewater generation process. It then outlines the key components of the CETP, including primary treatment using screens and settling tanks, secondary treatment using aeration and clarification, and tertiary treatment using filters. It also discusses chemical dosing requirements and design parameters like retention time. The CETP is presented as an effective way to treat combined wastewater from multiple tanneries to reduce costs and help meet discharge standards.
An oil refinery is an industrial process plant where crude oil is processed and refined into more useful products such as petroleum naphtha, gasoline, diesel fuel, asphalt base, heating oil, kerosene, and liquefied petroleum gas. they are also typically large, sprawling industrial complexes with extensive piping running throughout, carrying streams of fluids between large chemical processing units.
Extraction of oil from oil cake by soxhletAsma-ul Husna
This document summarizes an experiment using a Soxhlet extractor to extract oil from oil cake. The objectives were to study the Soxhlet extractor, determine the percentage of extracted oil, and determine the percentage of recovered solvent. The experiment involved extracting oil from oil cake using n-hexane solvent in a Soxhlet apparatus. It was found that 11.31% of the oil was extracted from the cake and 65.5% of the n-hexane solvent was recovered.
1) Ethanol was studied as an alternative solvent to hexane for extracting oil from sunflower collets. Ethanol extracted a similar amount of oil but also extracted more minor components like tocopherols, phospholipids, and sugars compared to hexane.
2) Batch extraction experiments with ethanol were conducted at 50 and 60°C, and extraction kinetics were studied. Oil extraction reached equilibrium, limited by the solubility of extractable material in ethanol.
3) Using ethanol as the solvent extracted about 70% less waxes and at least 38% more tocopherols and phospholipids compared to hexane. It also extracted over 75% of the initial sugar content from the sunflower collets
Internship Report of Unicol Mirpurkhas (Ethanol Distillery)Talal Khan
This is a brief report of Ethanol Distillery situated in Mirpurkhas, Sindh, Pakistan.
It defines the Distillation Process, CO2 Liquification Process, Formation of Bio Gas from Molasses, Water Purification Plant, and Boiler working in Unicol Distillery.
Koch Modular Process Systems presented on extractive distillation. Extractive distillation involves adding a high-boiling solvent to a binary mixture to alter the relative volatility of the components and allow separation via distillation. It can be considered for mixtures that form azeotropes or have low relative volatility. Examples were given of mixtures like acetone/methanol and THF/water that can be separated through extractive distillation using appropriate solvents. Attendees were encouraged to evaluate extractive distillation for difficult separation challenges.
Spices are added to food in small amounts but contribute significantly to sensory qualities through volatile and fixed oils. Quality testing of spices includes determining moisture content, total ash, acid insoluble ash, volatile oils, non-volatile ether extract, crude fiber, and extraneous matter. Standard methods such as Dean-Stark distillation and Karl Fischer titration are used to precisely measure components in a repeatable and reproducible manner for quality assessment, detection of adulteration, and facilitation of spice trade.
I found no good source for extractive distillation on the internet.So i decided to make one myself.This ppt discusses about the technology,its working and benefits.It compares extractive distillation side by side to azeotropic distillation and counts the advantages.
ASE (Accelerated Solvent Extraction) is an extraction technique that uses elevated temperature and pressure to quickly extract oils from oilseeds in minutes using small amounts of solvent. The procedure described extracts oil from canola seeds in 14 minutes using 16 mL of solvent, providing comparable results to traditional methods that take hours and hundreds of mL of solvent. Analysis shows ASE extracts 44.9% oil from canola with little oxidation or degradation occurring at extraction temperatures up to 130°C. ASE is a faster, more efficient technique for extracting oils from oilseeds compared to traditional methods.
Acacia, also known as gum arabic, is a complex mixture of plant polysaccharides that is obtained from the stems and branches of various Acacia tree species. It has various pharmaceutical uses including as an emulsifying, suspending, and binding agent. The document provides details on the source, description, chemical constituents, properties, identification tests, and evaluation tests of acacia to establish its identity and purity for use as an excipient in pharmaceutical products.
Pressurized accelerated extraction of pollutantsBhupander Kumar
Accelerated solvent extraction (ASE) is a technique that uses solvents, elevated temperatures, and pressures to efficiently extract analytes from solid samples. It provides several advantages over traditional techniques like Soxhlet extraction, including requiring smaller sample and solvent volumes and shorter extraction times. Key factors that influence ASE extraction include sample preparation, solvent selection, temperature, pressure, static time, flush volume, and number of cycles. These parameters require optimization for different sample matrixes and target analytes. ASE is useful for extracting pesticides, PAHs, PCBs, and dioxins from soils, sediments, plants and other solid environmental samples.
Flash chromatography is a technique used to rapidly separate mixtures. It uses slightly smaller silica gel particles and pressurized gas to drive solvents through the column faster than gravity chromatography. Key aspects include using a stationary phase like silica gel and solvent systems to differentially elute compounds. Samples can be loaded wet or dry onto the column then eluted with solvents. Flash chromatography provides a fast, economical method for separating gram quantities of compounds in the lab. It has applications in natural products, pharmaceuticals, and other areas.
Working of Continuous Distillation Column jagdeep123
Distillation Column has been widely used in industrial area where chemical processing and waste water treatment plays a significant role. It is also used nowadays in solvent recovery processes.
Treatment of aged transformer oil using dry sludge in lab-scale refining unitPremier Publishers
Experimental analysis of drinking water treatment sludge revealed that it is enriched with aluminum and silicon oxides which are the most metal oxides used in reclamation of transformer insulating oils. The potential use of inexpensive and available water treatment dry sludge as sorbent material for the removal of acidity, water content and some impurities from aged transformer oil by adsorption methodology was investigated using lab-scale refining unit. Dry sludge was found to improve the electrical and physical properties of aged transformer oils.High improvement of breakdown voltage occurs after using dry sludge reclaimed transformer oil and changed from 15 to 72 kV/ cm. Also some improvements have been achieved such as water content changed from 48 to 9 ppm and total acidity changed from 0.37 to 0.01mg KOH/g of oil.Viscosity, specific gravitywere improved. Also, some undesirable gases in aged oil(more than ten years in service) were removed. Furthermore the use of dry sludge as sorbent material renders the treated oil to some extent like new one. Also Dry sludge is available at any water treatment plant with no costs (waste product). Environmentally, after sludge reclamation process for the used transformer oil, the sludge can be recycled by ignition and used in further treatment processes.
This document summarizes test results for demulsifier formulations on two crude oil samples. For the first sample, the best performing individual demulsifier bases were DG270, DB5951, DB9392, DB9947 and W033 based on water dropping and salt content. The top performing formulations were DB9947/DB9392/DB9393 and W033/DB9392/DB9393. For the second sample, the best individual bases were DG270, D3575X, D311, DB9429, and DB9947. The top formulations were W033/DP188/DB9393 and DB9947/DG270/DB9393, which achieved lower salt contents
The document discusses applications of the FUNDABAC® filter system in the oil and gas industry. It is used for amine filtration in acid gas removal plants, removal of salts in MEG regeneration processes, mercury removal from crude oil, produced water filtration, and other processes. The filter system provides advantages of dry discharge of filter cakes, flexibility to changing filtration needs, high filtration efficiency down to 1 micron, and low operating and maintenance costs.
The document discusses various methods of leaching, which is the process of extracting soluble constituents from a solid material using a liquid solvent. It describes several common leaching techniques used in industries like food processing, pharmaceuticals, and metals extraction. These include counter-current leaching systems that improve extraction efficiency, as well as equipment used for leaching like agitated vessels, thickeners, extractors, and the Kennedy and Bollman extractors.
This document summarizes a study on optimizing the extraction of sandalwood oil using subcritical carbon dioxide compared to conventional techniques like steam distillation. Subcritical carbon dioxide extraction at 200 bars and 28°C yielded 4.11% oil in the first hour, higher than other methods and with higher quality as indicated by acid value and santalol content. Analysis found the oil extracted in each hour contained varying amounts of key constituents like α-santalene and β-santalol. The study demonstrates that subcritical carbon dioxide extraction is more efficient and yields higher quality sandalwood oil than conventional techniques like steam distillation.
wholw Content is covered in this presentation .it will give u a basic idea and types about leaching and it will also provide u information via Diagrams .
This document provides instructions and recipes for preparing reagents and performing a western blot analysis. It lists the necessary accessories which include gel components, protein markers, buffers, antibodies, and an ECL kit. Detailed procedures are provided for making separation and stacking gels, preparing protein samples, running the gel electrophoresis, transferring proteins to a membrane, blocking and incubating with primary and secondary antibodies, developing the blot, and capturing results. Precise amounts of reagents are specified for replicating the multi-step process of western blotting.
This document describes a common effluent treatment plant (CETP) designed to treat wastewater from tanneries. It first provides background on tanneries and the wastewater generation process. It then outlines the key components of the CETP, including primary treatment using screens and settling tanks, secondary treatment using aeration and clarification, and tertiary treatment using filters. It also discusses chemical dosing requirements and design parameters like retention time. The CETP is presented as an effective way to treat combined wastewater from multiple tanneries to reduce costs and help meet discharge standards.
An oil refinery is an industrial process plant where crude oil is processed and refined into more useful products such as petroleum naphtha, gasoline, diesel fuel, asphalt base, heating oil, kerosene, and liquefied petroleum gas. they are also typically large, sprawling industrial complexes with extensive piping running throughout, carrying streams of fluids between large chemical processing units.
The document discusses auditing of a critical system called an effluent treatment plant (ETP). It begins with definitions of key terms related to ETPs. It then discusses the advantages of wastewater systems, the need for ETPs, and factors to consider in ETP design. The document outlines the typical treatment levels and processes in an ETP, including preliminary, primary, secondary, and tertiary treatment. It provides examples of physical, chemical, and biological processes. The document concludes with sections on ETP audit procedures and checklists for evaluating ETP performance and environmental impact.
The document discusses auditing of a critical system called an effluent treatment plant (ETP). It begins with definitions of key terms related to ETPs like effluent, influent, and sludge. It then covers the advantages of wastewater systems, the need for ETPs, and factors to consider in ETP design. The document outlines the treatment levels and processes in an ETP from preliminary to tertiary. It provides examples of physical, chemical, and biological processes. Finally, it discusses audit checklists and procedures for ETPs and considerations for environmental impact assessments.
The document provides information about effluent treatment plants (ETPs). It discusses the concept of ETPs and why they are needed to treat effluent prior to release into the environment. It then describes the major treatment units used in ETPs, including preliminary treatment to remove solids and oils, primary treatment using sedimentation tanks, secondary biological treatment using methods like activated sludge process, and tertiary treatment using filtration and disinfection. Key processes and components of an ETP are screening, grit removal, equalization, neutralization, trickling filters, UASB reactors, and various filtration options.
The document discusses key parameters to consider when selecting a vacuum oil purifier:
1) Types of contaminants in the oil such as moisture, gases, solids, and acidity determine the purifier's design.
2) Flow rate depends on contamination entry rate and budget. Higher flow requires more efficient purification.
3) Efficiency is influenced by temperature, vacuum depth, and residence time - deeper vacuum and higher heat improve efficiency.
4) Cost depends on required flow rate, efficiency, vacuum pump type, and controls - higher performance means higher cost.
It is important & most useful presentation about ETP.
Created By: 131 TE-2 batch student
BGMEA University of Fashion & Technology (BUFT)
Textile Engineering Department
Course: Bangladesh Studies
Advanced tailing separation process - Minewaste 2010 -Peter Godwin
The document discusses methods for improving tailings treatment processes to generate additional profits through more complete material separation and water recycling. It presents a plant concept for treating coal tailings ponds that uses classification, flotation, filtration and drying to recover 80% of solids as a valuable product. Hyperbaric filtration is proposed as an alternative to vacuum filtration and drying to further reduce waste volumes and improve economics.
Harards of oily waste & its managementArvind Kumar
The document summarizes the hazards of oily waste and methods for its remediation. It discusses how oily sludge generated at oil installations is considered hazardous waste. Current practices for managing sludge involve reducing its volume through melting and recovering oil, but residual sludge remains a disposal challenge. Bioremediation is presented as an environmentally-friendly option where microbes break down oil in sludge into harmless substances. The document also reviews other disposal methods like incineration and concludes that bioremediation research aims to make the process cleaner and more effective at degrading hazardous constituents.
The document discusses effluent treatment plants (ETPs), which treat industrial wastewater before releasing it into the environment. ETPs use physical, chemical, and biological processes to remove pollutants from wastewater and make it free of impurities. The treatment involves preliminary, primary, secondary, and sometimes tertiary stages to purify the water by removing suspended solids, BOD, COD, oil, grease and other parameters to meet government standards for safe release. The document also provides details about various treatment units and processes used at each stage.
Report on Effluent Treatment Plant (ETP) Operation and Maintenance of Interst...Kowshick Sen
Interstoff Apparels Ltd (IAL) comprises of the latest, most technologically advanced 100% export oriented private limited company with composite knitting, dyeing, finishing and apparel manufacturing plants situated in Chandra, Kaliyakoir, Gazipur, Bangladesh. IAL installed an Effluent Treatment Plant of 75 m3/Hr capacity which is running 24 Hr in a day. By nature, our ETP is Bio-logical with Chemical namely Bio-Chemical plant. This treatment is done by four stages such as preliminary, primary, secondary and tertiary treatment. Waste water comes from mainly dyeing and washing through a trench to equalization tank so for preliminary treatment is done by screening by using net or sieve for removal of large solids such as rags, sticks, grit and grease that may result in damage to equipment or operational problems at different stages of trench.
The document describes the key components and processes of an effluent treatment plant (ETP). The ETP treats industrial wastewater in multiple stages including preliminary treatment to remove solids, primary treatment using sedimentation, secondary treatment using biological processes like activated sludge, and tertiary/advanced treatment using techniques like sand filters to further polish the water before discharge or reuse. The ETP aims to clean industrial effluent to reduce freshwater usage and allow safe release of water back into the environment while meeting pollution standards.
Plan an ETP with detail process discussion following the instructionsMd Fahimuzzaman
Effluent is the stream of excess chemical liquor from an industry after using in original operation. For example, the excess dye liquor extracted from the textile industry after dyeing is an effluent of that dyeing industry. Effluent Treatment Plant or ETP is a waste water treatment method which is particularly designed to purify industrial waste water for its reuse and it’s aim is to release safe water to environment from the harmful effect caused by the effluent. Textile industry uses numerous hazardous chemicals during processing such as heavy metals, salts, surfactants, sulphite, and formaldehyde, which can cause major pollution in the effluents’ receiving waters. Since textile waste water contains a diversity of impurities and therefore specific treatment technology called ETP is required. The ETP Plant works at various levels and involves various physical, chemical, biological and membrane processes to treat waste water from different industrial sectors like chemicals, drugs, pharmaceutical, refineries, dairy, ready mix plants & textile etc.
The document reports on a field visit to the effluent treatment plant (ETP) of Concord Biotech Limited. It provides an introduction to the company and describes the ETP. The ETP uses various processes to treat wastewater from the pharmaceutical manufacturing process, including oil and grease separation, pH adjustment with lime and alum, sedimentation, aeration for bacteria growth and decomposition, secondary sedimentation, holding, and filtration through sand and carbon filters. Treated water tests are conducted and the water is then used for gardening.
With rising crude prices and depleting quality of crude, however, the level of wastewater pollutants in petroleum wastewater is at new high. Such conditions are forcing refineries to use a more advanced water treatment, water recovery methods, and robust processes that work well under a variety of conditions and can handle the changing refinery effluent flow rates. Finally a process that is economical in overall life time cost is needed to make all of this feasible. Aquatech has experience working with these refinery effluent pollutants in the refinery market and offers the advanced petroleum wastewater treatment and recovery technology necessary for the refinery’s needs.
The document discusses waste water treatment in oil refineries. It notes that refineries produce a variety of waste materials in gaseous, liquid, and solid forms that must be treated before disposal. Refineries use large amounts of water and generate large volumes of wastewater. Treatment involves using oil skimmers, equalization tanks, trickling filters, aeration tanks, and lagoons/final polishing ponds to treat wastewater before discharge or recycling. The goal is to meet minimum standards for BOD, TSS, pH, and absence of visible solids/oil before treated water is released.
This document provides information about industrial effluent treatment plants (ETPs). It defines ETPs and explains why they are needed to treat industrial effluent before release or reuse. The major treatment units in an ETP are described, including preliminary (screening, grit removal), primary (sedimentation, clarification), secondary (activated sludge process, trickling filters), and tertiary (filtration, disinfection) treatments. Specific unit processes like neutralization tanks, equalization tanks, and aerobic/anaerobic digesters are also outlined.
Top mailing list providers in the USA.pptxJeremyPeirce1
Discover the top mailing list providers in the USA, offering targeted lists, segmentation, and analytics to optimize your marketing campaigns and drive engagement.
Understanding User Needs and Satisfying ThemAggregage
https://www.productmanagementtoday.com/frs/26903918/understanding-user-needs-and-satisfying-them
We know we want to create products which our customers find to be valuable. Whether we label it as customer-centric or product-led depends on how long we've been doing product management. There are three challenges we face when doing this. The obvious challenge is figuring out what our users need; the non-obvious challenges are in creating a shared understanding of those needs and in sensing if what we're doing is meeting those needs.
In this webinar, we won't focus on the research methods for discovering user-needs. We will focus on synthesis of the needs we discover, communication and alignment tools, and how we operationalize addressing those needs.
Industry expert Scott Sehlhorst will:
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1. 4.1 Dry Cleaning
4.1.1 General1,2
Dry cleaning involves the cleaning of fabrics with nonaqueous organic solvents. The dry
cleaning process requires 3 steps: (1) washing the fabric in solvent, (2) spinning to extract excess
solvent, and (3) drying by tumbling in a hot air stream.
Two general types of cleaning fluids are used in the industry, petroleum solvents and synthetic
solvents. Petroleum solvents, such as Stoddard or 140-F, are inexpensive combustible hydrocarbon
mixtures similar to kerosene. Operations using petroleum solvents are known as petroleum plants.
Synthetic solvents are nonflammable but more expensive halogenated hydrocarbons. Perchloroethylene
and trichlorotrifluoroethane are the 2 synthetic dry cleaning solvents presently in use. Operations
using these synthetic solvents are respectively called quot;percquot; plants and fluorocarbon plants.
There are 2 basic types of dry cleaning machines, transfer and dry-to-dry. Transfer machines
accomplish washing and drying in separate machines. Usually, the washer extracts excess solvent
from the clothes before they are transferred to the dryer, but some older petroleum plants have
separate extractors for this purpose. Dry-to-dry machines are single units that perform all of the
washing, extraction, and drying operations. All petroleum solvent machines are the transfer type, but
synthetic solvent plants can be either type.
The dry cleaning industry can be divided into 3 sectors: coin-operated facilities, commercial
operations, and industrial cleaners. Coin-operated facilities are usually part of a laundry supplying
quot;self-servicequot; dry cleaning for consumers. Only synthetic solvents are used in coin operated dry
cleaning machines. Such machines are small, with a capacity of 3.6 to 11.5 kg (8 to 25 lb) of
clothing.
Commercial operations, such as small neighborhood or franchise dry cleaning shops, clean
soiled apparel for the consumer. Generally, perchloroethylene and petroleum solvents are used in
commercial operations. A typical quot;percquot; plant operates a 14 to 27 kg (30 to 60 lb) capacity
washer/extractor and an equivalent size reclaiming dryer.
Industrial cleaners are larger dry cleaning plants which supply rental service of uniforms, mats,
mops, etc., to businesses or industries. Perchloroethylene is used by approximately 50 percent of the
industrial dry cleaning establishments. A typical large industrial cleaner has a 230 kg (500 lb)
capacity washer/extractor and 3 to 6 38-kg (100-lb) capacity dryers.
A typical perc plant is shown in Figure 4.1-1. Although 1 solvent tank may be used, the
typical perc plant uses 2 tanks for washing. One tank contains pure solvent, and the other contains
quot;chargedquot; solvent (used solvent to which small amounts of detergent have been added to aid in
cleaning). Generally, clothes are cleaned in charged solvent and rinsed in pure solvent. A water bath
may also be used.
After the clothes have been washed, the used solvent is filtered, and part of the filtered solvent
is returned to the charged solvent tank for washing the next load. The remaining solvent is then
distilled to remove oils, fats, greases, etc., and is returned to the pure solvent tank. The
4/81 (Reformatted 1/95) Evaporation Loss Sources 4.1-1
3. collected solids (muck) are usually removed from the filter once a day. Before disposal, the muck
may be quot;cookedquot; to recover additional solvent. Still and muck cooker vapors are vented to a
condenser and separator, where more solvent is reclaimed. In many perc plants, the condenser
offgases are vented to a carbon adsorption unit for additional solvent recovery.
After washing, the clothes are transferred to the dryer to be tumbled in a heated air stream.
Exhaust gases from the dryer, along with a small amount of exhaust gases from the washer/extractor,
are vented to a water-cooled condenser and water separator. Recovered solvent is returned to the pure
solvent storage tank. In 30 to 50 percent of the perc plants, the condenser offgases are vented to a
carbon adsorption unit for additional solvent recovery. To reclaim this solvent, the unit must be
periodically desorbed with steam, usually at the end of each day. Desorbed solvent and water are
condensed and separated, and recovered solvent is returned to the pure solvent tank.
A petroleum plant would differ from Figure 4.1-1 chiefly in that there would be no recovery
of solvent from the washer and dryer and no muck cooker. A fluorocarbon plant would differ in that
an unvented refrigeration system would be used in place of a carbon adsorption unit. Another
difference is that a typical fluorocarbon plant could use a cartridge filter which is drained and disposed
of after several hundred cycles.
4.1.2 Emissions And Controls1-3
The solvent itself is the primary emission from dry cleaning operations. Solvent is given off
by washer, dryer, solvent still, muck cooker, still residue, and filter muck storage areas, as well as by
leaky pipes, flanges, and pumps.
Petroleum plants have not generally employed solvent recovery, because of the low cost of
petroleum solvents and the fire hazards associated with collecting vapors. Some emission control,
however, can be obtained by maintaining all equipment (e. g., preventing lint accumulation, solvent
leakage, etc.) and by using good operating practices (e. g., not overloading machinery). Both carbon
adsorption and incineration appear to be technically feasible controls for petroleum plants, but costs
are high.
Solvent recovery is necessary in perc plants due to the higher cost of perchloroethylene. As
shown in Figure 4.1-1, recovery is effected on the washer, dryer, still, and muck cooker through the
use of condensers, water/solvent separators and carbon adsorption units. Typically once a day, solvent
in the carbon adsorption unit is desorbed with steam, condensed, separated from the condensed water,
and returned to the pure solvent storage tank. Residual solvent emitted from treated distillation
bottoms and muck is not recovered. As in petroleum plants, good emission control can be obtained by
good housekeeping (maintaining all equipment and using good operating practices).
All fluorocarbon machines are of the dry-to-dry variety to conserve solvent vapor, and all are
closed systems with built in solvent recovery. High emissions can occur, however, as a result of poor
maintenance and operation of equipment. Refrigeration systems are installed on newer machines to
recover solvent from the washer/dryer exhaust gases.
Emission factors for dry cleaning operations are presented in Table 4.1-1.
Typical coin-operated and commercial plants emit less than 106 grams (1 ton) per year. Some
applications of emission estimates are too broad to identify every small facility. For estimates over
large areas, the factors in Table 4.1-2 may be applied for coin-operated and commercial dry cleaning
emissions.
4/81 (Reformatted 1/95) Evaporation Loss Sources 4.1-3
5. 4/81 (Reformatted 1/95)
Table 4.1-1 (cont.).
a References 1-4. Units are in terms of weight solvent per weight of clothes cleaned (capacity x loads). Emissions also may be estimated
by determining the amount of solvent consumed. Assuming that all solvent input is eventually evaporated to the atmosphere, an emission
factor of 1000 kg/Mg (2000 lb/ton) of solvent consumed can be applied.
b Different materials in wash retain a different amount of solvent (synthetics, 10 kg/100 kg [10 lb/100 lb]; cotton, 20 kg/100 kg
[20 lb/100 lb]; leather, 40 kg/100 kg [40 lb/100 lb]).
c Emissions from washer, dryer, still, and muck cooker are passed collectively through a carbon adsorber.
d Miscellaneous sources include fugitives from flanges, pumps, pipes, and storage tanks, and fixed losses such as opening and closing dryers,
etc.
e Uncontrolled emissions from washer, dryer, still, and muck cooker average about 8 kg/100 kg (8 lb/100 lb). About 15% of solvent emitted
is from washer, 75% dryer, 5% each from still and muck cooker.
f Based on the typical refrigeration system installed in fluorocarbon plants.
Evaporation Loss Sources
4.1-5
6. Table 4.1-2 (Metric And English Units). PER CAPITA SOLVENT LOSS EMISSION FACTORS
FOR DRY CLEANING PLANTSa
EMISSION FACTOR RATING: B
Emission Factors
kg/yr/capita g/day/capitab
Operation (lb/year/cap) (lb/day/cap)
Commercial 0.6 1.9
(1.3) (0.004)
Coin-operated 0.2 0.6
(0.4) (0.001)
a References 2-4. All nonmethane VOC.
b Assumes a 6-day operating week (313 days/yr).
References For Section 4.1
1. Study To Support New Source Performance Standards For The Dry Cleaning Industry,
EPA Contract No. 68-02-1412, TRW, Inc., Vienna, VA, May 1976.
2. Perchloroethylene Dry Cleaners — Background Information For Proposed Standards,
EPA-450/3-79-029a, U. S. Environmental Protection Agency, Research Triangle Park, NC,
August 1980.
3. Control Of Volatile Organic Emissions From Perchloroethylene Dry Cleaning Systems,
EPA-450/2-78-050, U. S. Environmental Protection Agency, Research Triangle Park, NC,
December 1978.
4. Control Of Volatile Organic Emissions From Petroleum Dry Cleaners (Draft), Office Of Air
Quality Planning And Standards, U. S. Environmental Protection Agency, Research Triangle
Park, NC, February 1981.
4.1-6 EMISSION FACTORS (Reformatted 1/95) 4/81