The Experts below are selected from a list of 11976 Experts worldwide ranked by ideXlab platform
Robin Smith - One of the best experts on this subject based on the ideXlab platform.
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designing for the interactions between water use and Effluent Treatment
Chemical Engineering Research & Design, 1998Co-Authors: Robin SmithAbstract:This paper addresses the interactions between the design of water-using operations and Effluent Treatment in the process industries. Water use can be minimized though re-use or recycling. Treatment of water can be for discharge or to enable further re-use or recycling. Targets have previously been established for minimum flowrate of water in waterusing operations and minimum flowrate to be treated through the use of distributed (or segregated) Effluent Treatment. Design methods have also been presented to allow the targets to be achieved in practice. However, these methods were based on each part of the problem taken in isolation. A new methodology is presented in this paper which allows design options to be explored which take into account the interactions between different parts of the overall problem.
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Effluent Treatment system design
Chemical Engineering Science, 1997Co-Authors: Robin SmithAbstract:This paper addresses the design of distributed Effluent Treatment systems. In the case of single contaminants, targets are first set for the minimum flowrates in a distributed Effluent Treatment system. Design methods then allow the targets to be achieved in practice. Previously published methods failed to address important features of the design for multiple Treatment processes. In the case of multiple contaminants the Treatment network is developed in a staged approach by repeated use of targets and design. Minimum flowrate is not guaranteed for multiple contaminants, but the designer is guided towards the best solutions. Overall, the paper presents improved methods for the design of distributed Effluent Treatment systems and extends the concepts to retrofit cases.
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design of distributed Effluent Treatment systems
Chemical Engineering Science, 1994Co-Authors: Yaping Wang, Robin SmithAbstract:Abstract The problem with centralised Effluent Treatment is that combining two waste streams that require different Treatment technologies leads to a cost of treating the combined streams which is virtually always more expensive than individual Treatment of the separate streams. On the other hand, if two waste streams require exactly the same Treatment it is sensible to combine them for Treatment to obtain economies of scale. The design of Effluent Treatment systems should in the first instance segregate the streams for Treatment and only combine them if it is appropriate. If this policy is followed then the Effluent Treatment system becomes distributed rather than centralised. Distributed Effluent Treatment can, in the appropriate circumstances, lead to significantly lower capital and operating costs when compared with centralised Treatment. This paper presents a general methodology for the design of distributed Effluent Treatment systems. The methodology first sets targets for Effluent flowrates through the Treatment processes for minimum Treatment costs. Simple design rules allow the development of a design to achieve the targets. The approach is general in that a centralised or distributed system could be obtained, whichever is appropriate.
J.s. Hsieh - One of the best experts on this subject based on the ideXlab platform.
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High-yield pulping Effluent Treatment technologies
1993Co-Authors: W.x. Su, J.s. HsiehAbstract:The objective of this report is to examine the high-yield (mechanical) pulp processes with respect to environmental issues affected by the discharge of their waste streams. Various statistics are given that support the view that high-yield pulping processes will have major growth in the US regions where pulp mills are located, and sites for projects in the development phase are indicated. Conventional and innovative Effluent-Treatment technologies applicable to these processes are reviewed. The different types of mechanical pulping or high-yield processes are explained, and the chemical additives are discussed. The important relationship between pulp yield and measure of BOD in the Effluent is graphically presented. Effluent contaminants are identified, along with other important characteristics of the streams. Current and proposed environmental limitations specifically related to mechanical pulp production are reviewed. Conventional and innovative Effluent-Treatment technologies are discussed, along with their principle applications, uses, advantages, and disadvantages. Sludge management and disposal techniques become an intimate part of the Treatment of waste streams. The conclusion is made that conventional technologies can successfully treat Effluent streams under current waste-water discharge limitations, but these systems may not be adequate when stricter standards are imposed. At present, the most important issue in the Treatment ofmore » pulp-mill waste is the management and disposal of the resultant sludge.« less
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High-yield pulping Effluent Treatment technologies. Final report
1993Co-Authors: W.x. Su, J.s. HsiehAbstract:The objective of this report is to examine the high-yield (mechanical) pulp processes with respect to environmental issues affected by the discharge of their waste streams. Various statistics are given that support the view that high-yield pulping processes will have major growth in the US regions where pulp mills are located, and sites for projects in the development phase are indicated. Conventional and innovative Effluent-Treatment technologies applicable to these processes are reviewed. The different types of mechanical pulping or high-yield processes are explained, and the chemical additives are discussed. The important relationship between pulp yield and measure of BOD in the Effluent is graphically presented. Effluent contaminants are identified, along with other important characteristics of the streams. Current and proposed environmental limitations specifically related to mechanical pulp production are reviewed. Conventional and innovative Effluent-Treatment technologies are discussed, along with their principle applications, uses, advantages, and disadvantages. Sludge management and disposal techniques become an intimate part of the Treatment of waste streams. The conclusion is made that conventional technologies can successfully treat Effluent streams under current waste-water discharge limitations, but these systems may not be adequate when stricter standards are imposed. At present, the most important issue in the Treatment ofmore » pulp-mill waste is the management and disposal of the resultant sludge.« less
W.x. Su - One of the best experts on this subject based on the ideXlab platform.
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High-yield pulping Effluent Treatment technologies
1993Co-Authors: W.x. Su, J.s. HsiehAbstract:The objective of this report is to examine the high-yield (mechanical) pulp processes with respect to environmental issues affected by the discharge of their waste streams. Various statistics are given that support the view that high-yield pulping processes will have major growth in the US regions where pulp mills are located, and sites for projects in the development phase are indicated. Conventional and innovative Effluent-Treatment technologies applicable to these processes are reviewed. The different types of mechanical pulping or high-yield processes are explained, and the chemical additives are discussed. The important relationship between pulp yield and measure of BOD in the Effluent is graphically presented. Effluent contaminants are identified, along with other important characteristics of the streams. Current and proposed environmental limitations specifically related to mechanical pulp production are reviewed. Conventional and innovative Effluent-Treatment technologies are discussed, along with their principle applications, uses, advantages, and disadvantages. Sludge management and disposal techniques become an intimate part of the Treatment of waste streams. The conclusion is made that conventional technologies can successfully treat Effluent streams under current waste-water discharge limitations, but these systems may not be adequate when stricter standards are imposed. At present, the most important issue in the Treatment ofmore » pulp-mill waste is the management and disposal of the resultant sludge.« less
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High-yield pulping Effluent Treatment technologies. Final report
1993Co-Authors: W.x. Su, J.s. HsiehAbstract:The objective of this report is to examine the high-yield (mechanical) pulp processes with respect to environmental issues affected by the discharge of their waste streams. Various statistics are given that support the view that high-yield pulping processes will have major growth in the US regions where pulp mills are located, and sites for projects in the development phase are indicated. Conventional and innovative Effluent-Treatment technologies applicable to these processes are reviewed. The different types of mechanical pulping or high-yield processes are explained, and the chemical additives are discussed. The important relationship between pulp yield and measure of BOD in the Effluent is graphically presented. Effluent contaminants are identified, along with other important characteristics of the streams. Current and proposed environmental limitations specifically related to mechanical pulp production are reviewed. Conventional and innovative Effluent-Treatment technologies are discussed, along with their principle applications, uses, advantages, and disadvantages. Sludge management and disposal techniques become an intimate part of the Treatment of waste streams. The conclusion is made that conventional technologies can successfully treat Effluent streams under current waste-water discharge limitations, but these systems may not be adequate when stricter standards are imposed. At present, the most important issue in the Treatment ofmore » pulp-mill waste is the management and disposal of the resultant sludge.« less
Manish Kumar - One of the best experts on this subject based on the ideXlab platform.
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Suitability of conventional and membrane bioreactor system in textile mill Effluent Treatment
Desalination and Water Treatment, 2015Co-Authors: Shashi Prabha, Jyoti Prakash Deka, Vinay Kumar Tayagi, Pallavi Das, Anindita Gogoi, A.l. Ramanathan, Manish KumarAbstract:Effluents from the industries contaminate surface water, soil and groundwater due to the presence of soluble solids, suspended solids, organic matter, heavy metals and toxic constituents. This necessitates Treatment of the discharged wastewater and determination of Effluent quality. The situation is very alarming for Tirupur due to textile industries Effluent, affecting water consumption pattern around the whole area that generates high stress on groundwater resources as well as agricultural productivity. The present study is based on the general characterization of the quality of Effluent before and after installation of conventional Effluent Treatment plants (CETPs) and membrane bioreactor (MBR) Treatment systems. The performance evaluation of CETPs and MBR systems in textile mill Effluent Treatment was carried out in terms of Effluent quality and Treatment efficiency. The findings revealed that the CETPs were efficient in removal of total dissolved solids, bicarbonate (Formula presented.) total major cations and Cd however, the MBR system was more efficient in removal of biochemical oxygen demand, chemical oxygen demand, (Formula presented.), Zn, Pb and Cr. On the basis of findings, it can be concluded that the MBR system serve as an effective alternate in treating the industrial wastewater specially for textile Effluent Treatment with major advantages like less sludge generation, compact and ease in operation and small footprints, in comparison with conventional Treatment systems. © 2014 © 2014 Balaban Desalination Publications. All rights reserved.
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Suitability of conventional and membrane bioreactor system in textile mill Effluent Treatment
Desalination and Water Treatment, 2014Co-Authors: Shashi Prabha, Jyoti Prakash Deka, Vinay Kumar Tayagi, Anindita Gogoi, A.l. Ramanathan, Manish KumarAbstract:AbstractEffluents from the industries contaminate surface water, soil and groundwater due to the presence of soluble solids, suspended solids, organic matter, heavy metals and toxic constituents. This necessitates Treatment of the discharged wastewater and determination of Effluent quality. The situation is very alarming for Tirupur due to textile industries Effluent, affecting water consumption pattern around the whole area that generates high stress on groundwater resources as well as agricultural productivity. The present study is based on the general characterization of the quality of Effluent before and after installation of conventional Effluent Treatment plants (CETPs) and membrane bioreactor (MBR) Treatment systems. The performance evaluation of CETPs and MBR systems in textile mill Effluent Treatment was carried out in terms of Effluent quality and Treatment efficiency. The findings revealed that the CETPs were efficient in removal of total dissolved solids, bicarbonate () total major cations and...
Mahendra Kumar Bijarnia - One of the best experts on this subject based on the ideXlab platform.
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mutagenicity evaluation of industrial sludge from common Effluent Treatment plant
Chemosphere, 2007Co-Authors: Nupur Mathur, Pradeep Bhatnagar, Krishna Mohan, Prakash P Bakre, Pankaj Nagar, Mahendra Kumar BijarniaAbstract:Sludge from common Effluent Treatment plant (CETP) receiving Effluents from textile industries at Mandia Road, Pali, was analyzed to assess the level of mutagenicity. Mutagenicity assay using Salmonella typhimurium tester strains TA 98 and TA 100 gave positive results, thus suggesting presence of genotoxic contaminants in the samples investigated. Further, mutagenic activity of chemical sludge was found to be lesser than that of biological sludge. This result is very surprising and unexpected as it is indicating that some mutagenic compounds are either being formed or certain promutagenic compounds are being converted into stable mutagenic metabolites during the biological Treatment of the wastewater Effluents. There have been no previous reports giving similar or contrary results. Most of the previous studies have reported effects of single combined sludge.
