Steady state analysis of the coupling aerator and secondary settling tank in activated sludge process
Identifieur interne : 002307 ( Main/Curation ); précédent : 002306; suivant : 002308Steady state analysis of the coupling aerator and secondary settling tank in activated sludge process
Auteurs : S. H. Cho [Corée du Sud] ; H. N. Chang [Corée du Sud] ; C. Prost [France]Source :
- Water Research [ 0043-1354 ] ; 1996.
Descripteurs français
- Pascal (Inist)
- Wicri :
English descriptors
- KwdEn :
- Activated sludge, Aeration tank, Aerator volume, Biological purification, Biological reaction kinetics, Biomass, Biomass concentration, Concentration factor, Continuous flow, Coupling, Criterion boundary, Effluent flowrate, Elsevier science, Endogenous decay coefficient, Exponential model, Hydraulic retention time, Initial flux, Isoresponse, Isoresponse curve, Isoresponse curves, Limit flux, Limit flux concentration, Limit flux concentrations, Limit flux layer, Limit flux theory, Line zone, Mass transport, Material balance, Modeling, Other case, Other hand, Output variables, Pollutant, Pollutant concentration, Pollutant concentrations, Power model, Reaction rate, Response surface, Sample calculation, Sample case study, Settling pond, Sludge, Sludge concentration factor, Sludge process, Sludge ratio, Sludge system, Sludge waste ratio, Solid concentration, Solid concentration factor, Solid entrainment, Solid flux, Solid retention time, Steady state, Steady state analysis, Steady state responses, Substrate concentration, Substrate consumption rate, Supernatant, Surface area, Tank reactor, Unified basis, Waste sludge ratio, Waste water purification, Wastewater, Wastewater treatment, Wastewater treatment plant.
- Teeft :
- Aerator volume, Biological reaction kinetics, Biomass, Biomass concentration, Concentration factor, Continuous flow, Criterion boundary, Effluent flowrate, Elsevier science, Endogenous decay coefficient, Exponential model, Hydraulic retention time, Initial flux, Isoresponse, Isoresponse curve, Isoresponse curves, Limit flux, Limit flux concentration, Limit flux concentrations, Limit flux layer, Limit flux theory, Line zone, Mass transport, Material balance, Other case, Other hand, Output variables, Pollutant, Pollutant concentration, Pollutant concentrations, Power model, Reaction rate, Response surface, Sample calculation, Sample case study, Sludge, Sludge concentration factor, Sludge process, Sludge ratio, Sludge system, Sludge waste ratio, Solid concentration, Solid concentration factor, Solid entrainment, Solid flux, Solid retention time, Steady state, Steady state analysis, Steady state responses, Substrate concentration, Substrate consumption rate, Supernatant, Surface area, Tank reactor, Unified basis, Waste sludge ratio, Wastewater, Wastewater treatment, Wastewater treatment plant.
Abstract
Abstract: The steady state analysis of coupling the function of aerator and secondary settling tank in activated sludge process for wastewater treatment is carried out to obtain appropriate responses of output variables and to decide optimum operating parameters. To consider the effect of the secondary settling tank, limit flux theory is applied and the aerator is assumed to be a continuous flow stirred tank reactor. By using sludge recycle ratio and sludge waste ratio as the operating parameters, the responses of the output variables—biomass concentration in aerator, dissolved pollutant and solid concentration in effluent—are represented as response surfaces and isoresponse curves. Acceptable operating zone can be obtained from the curves and optimum parameters can be determined. Coupling the function of aerator and secondary settling tank is important to consider the appropriate control of an activated sludge process.
Url:
DOI: 10.1016/S0043-1354(96)00158-3
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ISTEX:ABDCCD730F54A8AD831091343AE7D0F7FC795106Le document en format XML
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<front><div type="abstract" xml:lang="en">Abstract: The steady state analysis of coupling the function of aerator and secondary settling tank in activated sludge process for wastewater treatment is carried out to obtain appropriate responses of output variables and to decide optimum operating parameters. To consider the effect of the secondary settling tank, limit flux theory is applied and the aerator is assumed to be a continuous flow stirred tank reactor. By using sludge recycle ratio and sludge waste ratio as the operating parameters, the responses of the output variables—biomass concentration in aerator, dissolved pollutant and solid concentration in effluent—are represented as response surfaces and isoresponse curves. Acceptable operating zone can be obtained from the curves and optimum parameters can be determined. Coupling the function of aerator and secondary settling tank is important to consider the appropriate control of an activated sludge process.</div>
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<front><div type="abstract" xml:lang="en">The steady state analysis of coupling the function of aerator and secondary settling tank in activated sludge process for wastewater treatment is carried out to obtain appropriate responses of output variables and to decide optimum operating parameters. To consider the effect of the secondary settling tank, limit flux theory is applied and the aerator is assumed to be a continuous flow stirred tank reactor. By using sludge recycle ratio and sludge waste ratio as the operating parameters, the responses of the output variables - biomass concentration in aerator, dissolved pollutant and solid concentration in effluent - are represented as response surfaces and isoresponse curves. Acceptable operating zone can be obtained from the curves and optimum parameters can be determined. Coupling the function of aerator and secondary settling tank is important to consider the appropriate control of an activated sludge process.</div>
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<biblScope unit="issue">11</biblScope>
<biblScope unit="page" from="2601">2601</biblScope>
<biblScope unit="page" to="2608">2608</biblScope>
</imprint>
<idno type="ISSN">0043-1354</idno>
</series>
</biblStruct>
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<seriesStmt><idno type="ISSN">0043-1354</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Aerator volume</term>
<term>Biological reaction kinetics</term>
<term>Biomass</term>
<term>Biomass concentration</term>
<term>Concentration factor</term>
<term>Continuous flow</term>
<term>Criterion boundary</term>
<term>Effluent flowrate</term>
<term>Elsevier science</term>
<term>Endogenous decay coefficient</term>
<term>Exponential model</term>
<term>Hydraulic retention time</term>
<term>Initial flux</term>
<term>Isoresponse</term>
<term>Isoresponse curve</term>
<term>Isoresponse curves</term>
<term>Limit flux</term>
<term>Limit flux concentration</term>
<term>Limit flux concentrations</term>
<term>Limit flux layer</term>
<term>Limit flux theory</term>
<term>Line zone</term>
<term>Mass transport</term>
<term>Material balance</term>
<term>Other case</term>
<term>Other hand</term>
<term>Output variables</term>
<term>Pollutant</term>
<term>Pollutant concentration</term>
<term>Pollutant concentrations</term>
<term>Power model</term>
<term>Reaction rate</term>
<term>Response surface</term>
<term>Sample calculation</term>
<term>Sample case study</term>
<term>Sludge</term>
<term>Sludge concentration factor</term>
<term>Sludge process</term>
<term>Sludge ratio</term>
<term>Sludge system</term>
<term>Sludge waste ratio</term>
<term>Solid concentration</term>
<term>Solid concentration factor</term>
<term>Solid entrainment</term>
<term>Solid flux</term>
<term>Solid retention time</term>
<term>Steady state</term>
<term>Steady state analysis</term>
<term>Steady state responses</term>
<term>Substrate concentration</term>
<term>Substrate consumption rate</term>
<term>Supernatant</term>
<term>Surface area</term>
<term>Tank reactor</term>
<term>Unified basis</term>
<term>Waste sludge ratio</term>
<term>Wastewater</term>
<term>Wastewater treatment</term>
<term>Wastewater treatment plant</term>
</keywords>
<keywords scheme="Teeft" xml:lang="en"><term>Aerator volume</term>
<term>Biological reaction kinetics</term>
<term>Biomass</term>
<term>Biomass concentration</term>
<term>Concentration factor</term>
<term>Continuous flow</term>
<term>Criterion boundary</term>
<term>Effluent flowrate</term>
<term>Elsevier science</term>
<term>Endogenous decay coefficient</term>
<term>Exponential model</term>
<term>Hydraulic retention time</term>
<term>Initial flux</term>
<term>Isoresponse</term>
<term>Isoresponse curve</term>
<term>Isoresponse curves</term>
<term>Limit flux</term>
<term>Limit flux concentration</term>
<term>Limit flux concentrations</term>
<term>Limit flux layer</term>
<term>Limit flux theory</term>
<term>Line zone</term>
<term>Mass transport</term>
<term>Material balance</term>
<term>Other case</term>
<term>Other hand</term>
<term>Output variables</term>
<term>Pollutant</term>
<term>Pollutant concentration</term>
<term>Pollutant concentrations</term>
<term>Power model</term>
<term>Reaction rate</term>
<term>Response surface</term>
<term>Sample calculation</term>
<term>Sample case study</term>
<term>Sludge</term>
<term>Sludge concentration factor</term>
<term>Sludge process</term>
<term>Sludge ratio</term>
<term>Sludge system</term>
<term>Sludge waste ratio</term>
<term>Solid concentration</term>
<term>Solid concentration factor</term>
<term>Solid entrainment</term>
<term>Solid flux</term>
<term>Solid retention time</term>
<term>Steady state</term>
<term>Steady state analysis</term>
<term>Steady state responses</term>
<term>Substrate concentration</term>
<term>Substrate consumption rate</term>
<term>Supernatant</term>
<term>Surface area</term>
<term>Tank reactor</term>
<term>Unified basis</term>
<term>Waste sludge ratio</term>
<term>Wastewater</term>
<term>Wastewater treatment</term>
<term>Wastewater treatment plant</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Biomasse</term>
<term>Polluant</term>
<term>Eau usée</term>
</keywords>
</textClass>
<langUsage><language ident="en">en</language>
</langUsage>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">Abstract: The steady state analysis of coupling the function of aerator and secondary settling tank in activated sludge process for wastewater treatment is carried out to obtain appropriate responses of output variables and to decide optimum operating parameters. To consider the effect of the secondary settling tank, limit flux theory is applied and the aerator is assumed to be a continuous flow stirred tank reactor. By using sludge recycle ratio and sludge waste ratio as the operating parameters, the responses of the output variables—biomass concentration in aerator, dissolved pollutant and solid concentration in effluent—are represented as response surfaces and isoresponse curves. Acceptable operating zone can be obtained from the curves and optimum parameters can be determined. Coupling the function of aerator and secondary settling tank is important to consider the appropriate control of an activated sludge process.</div>
</front>
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