Endogenous processes during long-term starvation in activated sludge performing enhanced biological phosphorus removal
Identifieur interne : 000501 ( PascalFrancis/Checkpoint ); précédent : 000500; suivant : 000502Endogenous processes during long-term starvation in activated sludge performing enhanced biological phosphorus removal
Auteurs : C. Lopez [États-Unis] ; Marie-Noëlle Pons [France] ; E. Morgenroth [États-Unis]Source :
- Water research : (Oxford) [ 0043-1354 ] ; 2006.
Descripteurs français
- Pascal (Inist)
- Wicri :
English descriptors
- KwdEn :
Abstract
In many biological wastewater treatment systems, bacterial growth and the amount of active biomass are limited by the availability of substrate. Under these low growth conditions, endogenous processes have a significant influence on the amount of active biomass and therefore, the overall system performance. In enhanced biological phosphorus removal (EBPR) systems endogenous processes can also influence the levels of the internal storage compounds of the polyphosphate accumulating organisms (PAO), directly affecting phosphorus removal performance. The purpose of this study was to evaluate the significance of different endogenous processes that occur during the long-term starvation of EBPR sludge under aerobic and anaerobic conditions. Activated sludge obtained from a laboratory sequencing batch reactor was used to perform a series of batch starvation experiments. Under aerobic starvation conditions we observed a significant decay of PAO (first-order decay rate of 0.15/d) together with a rapid utilization of polyhydroxyalkanoates (PHA) and a slower utilization of glycogen and polyphosphate to generate maintenance energy. On the other hand, anaerobic starvation was best described by maintenance processes that rapidly reduce the levels of polyphosphate and glycogen under starvation conditions while no significant decay of PAO was observed. The endogenous utilization of glycogen for maintenance purposes is currently not included in available EBPR models. Our experimental results suggest that mathematical models for in EBPR should differentiate between aerobic and anaerobic endogenous processes, as they influence active biomass and storage products differently.
Affiliations:
- France, États-Unis
- Grand Est, Illinois, Lorraine (région)
- Nancy
- Centre national de la recherche scientifique, Laboratoire réactions et génie des procédés, Université de Lorraine
Links toward previous steps (curation, corpus...)
Links to Exploration step
Pascal:06-0306140Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Endogenous processes during long-term starvation in activated sludge performing enhanced biological phosphorus removal</title><author><name sortKey="Lopez, C" sort="Lopez, C" uniqKey="Lopez C" first="C." last="Lopez">C. Lopez</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 3219 Newmark Civil Engineering Laboratory, 205 North Mathews Avenue</s1><s2>Urbana, IL 61801</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Illinois</region></placeName></affiliation></author><author><name sortKey="Pons, M N" sort="Pons, M N" uniqKey="Pons M" first="M. N." last="Pons">Marie-Noëlle Pons</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire des Sciences du Génie Chimique, CNRS-ENSIC-INPL, BP 20451</s1><s2>54001, Nancy</s2><s3>FRA</s3><sZ>2 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region">Grand Est</region><region type="old region">Lorraine (région)</region><settlement type="city">Nancy</settlement></placeName><placeName><settlement type="city">Nancy</settlement><region type="region" nuts="2">Grand Est</region><region type="region" nuts="2">Lorraine (région)</region></placeName><orgName type="laboratoire" n="5">Laboratoire réactions et génie des procédés</orgName><orgName type="university">Université de Lorraine</orgName><orgName type="institution">Centre national de la recherche scientifique</orgName></affiliation></author><author><name sortKey="Morgenroth, E" sort="Morgenroth, E" uniqKey="Morgenroth E" first="E." last="Morgenroth">E. Morgenroth</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 3219 Newmark Civil Engineering Laboratory, 205 North Mathews Avenue</s1><s2>Urbana, IL 61801</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Illinois</region></placeName></affiliation><affiliation wicri:level="2"><inist:fA14 i1="03"><s1>Department of Animal Sciences, University of Illinois at Urbana-Champaign. Animal Sciences Laboratory, 1207 West Gregory Drive</s1><s2>Urbana, IL 61801</s2><s3>USA</s3><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Illinois</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">06-0306140</idno><date when="2006">2006</date><idno type="stanalyst">PASCAL 06-0306140 INIST</idno><idno type="RBID">Pascal:06-0306140</idno><idno type="wicri:Area/PascalFrancis/Corpus">000504</idno><idno type="wicri:Area/PascalFrancis/Curation">000607</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">000501</idno><idno type="wicri:explorRef" wicri:stream="PascalFrancis" wicri:step="Checkpoint">000501</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Endogenous processes during long-term starvation in activated sludge performing enhanced biological phosphorus removal</title><author><name sortKey="Lopez, C" sort="Lopez, C" uniqKey="Lopez C" first="C." last="Lopez">C. Lopez</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 3219 Newmark Civil Engineering Laboratory, 205 North Mathews Avenue</s1><s2>Urbana, IL 61801</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Illinois</region></placeName></affiliation></author><author><name sortKey="Pons, M N" sort="Pons, M N" uniqKey="Pons M" first="M. N." last="Pons">Marie-Noëlle Pons</name><affiliation wicri:level="3"><inist:fA14 i1="02"><s1>Laboratoire des Sciences du Génie Chimique, CNRS-ENSIC-INPL, BP 20451</s1><s2>54001, Nancy</s2><s3>FRA</s3><sZ>2 aut.</sZ></inist:fA14><country>France</country><placeName><region type="region">Grand Est</region><region type="old region">Lorraine (région)</region><settlement type="city">Nancy</settlement></placeName><placeName><settlement type="city">Nancy</settlement><region type="region" nuts="2">Grand Est</region><region type="region" nuts="2">Lorraine (région)</region></placeName><orgName type="laboratoire" n="5">Laboratoire réactions et génie des procédés</orgName><orgName type="university">Université de Lorraine</orgName><orgName type="institution">Centre national de la recherche scientifique</orgName></affiliation></author><author><name sortKey="Morgenroth, E" sort="Morgenroth, E" uniqKey="Morgenroth E" first="E." last="Morgenroth">E. Morgenroth</name><affiliation wicri:level="2"><inist:fA14 i1="01"><s1>Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 3219 Newmark Civil Engineering Laboratory, 205 North Mathews Avenue</s1><s2>Urbana, IL 61801</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Illinois</region></placeName></affiliation><affiliation wicri:level="2"><inist:fA14 i1="03"><s1>Department of Animal Sciences, University of Illinois at Urbana-Champaign. Animal Sciences Laboratory, 1207 West Gregory Drive</s1><s2>Urbana, IL 61801</s2><s3>USA</s3><sZ>3 aut.</sZ></inist:fA14><country>États-Unis</country><placeName><region type="state">Illinois</region></placeName></affiliation></author></analytic><series><title level="j" type="main">Water research : (Oxford)</title><title level="j" type="abbreviated">Water res. : (Oxf.)</title><idno type="ISSN">0043-1354</idno><imprint><date when="2006">2006</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Water research : (Oxford)</title><title level="j" type="abbreviated">Water res. : (Oxf.)</title><idno type="ISSN">0043-1354</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Activated sludge</term><term>Aerobe</term><term>Anaerobe</term><term>Batchwise</term><term>Biological purification</term><term>Biological treatment</term><term>Biomass</term><term>Bioreactor</term><term>Long term</term><term>Mathematical model</term><term>Modeling</term><term>Phosphorus</term><term>Sequencing batch reactor</term><term>Waste treatment</term><term>Waste water purification</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Long terme</term><term>Boue activée</term><term>Phosphore</term><term>Traitement biologique</term><term>Epuration eau usée</term><term>Biomasse</term><term>Aérobie</term><term>Anaérobie</term><term>Réacteur SBR</term><term>En discontinu</term><term>Modélisation</term><term>Modèle mathématique</term><term>Epuration biologique</term><term>Traitement déchet</term><term>Bioréacteur</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Phosphore</term><term>Biomasse</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In many biological wastewater treatment systems, bacterial growth and the amount of active biomass are limited by the availability of substrate. Under these low growth conditions, endogenous processes have a significant influence on the amount of active biomass and therefore, the overall system performance. In enhanced biological phosphorus removal (EBPR) systems endogenous processes can also influence the levels of the internal storage compounds of the polyphosphate accumulating organisms (PAO), directly affecting phosphorus removal performance. The purpose of this study was to evaluate the significance of different endogenous processes that occur during the long-term starvation of EBPR sludge under aerobic and anaerobic conditions. Activated sludge obtained from a laboratory sequencing batch reactor was used to perform a series of batch starvation experiments. Under aerobic starvation conditions we observed a significant decay of PAO (first-order decay rate of 0.15/d) together with a rapid utilization of polyhydroxyalkanoates (PHA) and a slower utilization of glycogen and polyphosphate to generate maintenance energy. On the other hand, anaerobic starvation was best described by maintenance processes that rapidly reduce the levels of polyphosphate and glycogen under starvation conditions while no significant decay of PAO was observed. The endogenous utilization of glycogen for maintenance purposes is currently not included in available EBPR models. Our experimental results suggest that mathematical models for in EBPR should differentiate between aerobic and anaerobic endogenous processes, as they influence active biomass and storage products differently.</div></front></TEI><inist><standard h6="B"><pA><fA01 i1="01" i2="1"><s0>0043-1354</s0></fA01><fA02 i1="01"><s0>WATRAG</s0></fA02><fA03 i2="1"><s0>Water res. : (Oxf.)</s0></fA03><fA05><s2>40</s2></fA05><fA06><s2>8</s2></fA06><fA08 i1="01" i2="1" l="ENG"><s1>Endogenous processes during long-term starvation in activated sludge performing enhanced biological phosphorus removal</s1></fA08><fA11 i1="01" i2="1"><s1>LOPEZ (C.)</s1></fA11><fA11 i1="02" i2="1"><s1>PONS (M. N.)</s1></fA11><fA11 i1="03" i2="1"><s1>MORGENROTH (E.)</s1></fA11><fA14 i1="01"><s1>Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign, 3219 Newmark Civil Engineering Laboratory, 205 North Mathews Avenue</s1><s2>Urbana, IL 61801</s2><s3>USA</s3><sZ>1 aut.</sZ><sZ>3 aut.</sZ></fA14><fA14 i1="02"><s1>Laboratoire des Sciences du Génie Chimique, CNRS-ENSIC-INPL, BP 20451</s1><s2>54001, Nancy</s2><s3>FRA</s3><sZ>2 aut.</sZ></fA14><fA14 i1="03"><s1>Department of Animal Sciences, University of Illinois at Urbana-Champaign. Animal Sciences Laboratory, 1207 West Gregory Drive</s1><s2>Urbana, IL 61801</s2><s3>USA</s3><sZ>3 aut.</sZ></fA14><fA20><s1>1519-1530</s1></fA20><fA21><s1>2006</s1></fA21><fA23 i1="01"><s0>ENG</s0></fA23><fA43 i1="01"><s1>INIST</s1><s2>8940A</s2><s5>354000115405990020</s5></fA43><fA44><s0>0000</s0><s1>© 2006 INIST-CNRS. All rights reserved.</s1></fA44><fA45><s0>1 p.1/2</s0></fA45><fA47 i1="01" i2="1"><s0>06-0306140</s0></fA47><fA60><s1>P</s1></fA60><fA61><s0>A</s0></fA61><fA64 i1="01" i2="1"><s0>Water research : (Oxford)</s0></fA64><fA66 i1="01"><s0>GBR</s0></fA66><fC01 i1="01" l="ENG"><s0>In many biological wastewater treatment systems, bacterial growth and the amount of active biomass are limited by the availability of substrate. Under these low growth conditions, endogenous processes have a significant influence on the amount of active biomass and therefore, the overall system performance. In enhanced biological phosphorus removal (EBPR) systems endogenous processes can also influence the levels of the internal storage compounds of the polyphosphate accumulating organisms (PAO), directly affecting phosphorus removal performance. The purpose of this study was to evaluate the significance of different endogenous processes that occur during the long-term starvation of EBPR sludge under aerobic and anaerobic conditions. Activated sludge obtained from a laboratory sequencing batch reactor was used to perform a series of batch starvation experiments. Under aerobic starvation conditions we observed a significant decay of PAO (first-order decay rate of 0.15/d) together with a rapid utilization of polyhydroxyalkanoates (PHA) and a slower utilization of glycogen and polyphosphate to generate maintenance energy. On the other hand, anaerobic starvation was best described by maintenance processes that rapidly reduce the levels of polyphosphate and glycogen under starvation conditions while no significant decay of PAO was observed. The endogenous utilization of glycogen for maintenance purposes is currently not included in available EBPR models. Our experimental results suggest that mathematical models for in EBPR should differentiate between aerobic and anaerobic endogenous processes, as they influence active biomass and storage products differently.</s0></fC01><fC02 i1="01" i2="X"><s0>001D16A</s0></fC02><fC02 i1="02" i2="X"><s0>001D16B06</s0></fC02><fC03 i1="01" i2="X" l="FRE"><s0>Long terme</s0><s5>01</s5></fC03><fC03 i1="01" i2="X" l="ENG"><s0>Long term</s0><s5>01</s5></fC03><fC03 i1="01" i2="X" l="SPA"><s0>Largo plazo</s0><s5>01</s5></fC03><fC03 i1="02" i2="X" l="FRE"><s0>Boue activée</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="ENG"><s0>Activated sludge</s0><s5>02</s5></fC03><fC03 i1="02" i2="X" l="SPA"><s0>Lodo activado</s0><s5>02</s5></fC03><fC03 i1="03" i2="X" l="FRE"><s0>Phosphore</s0><s2>NC</s2><s5>03</s5></fC03><fC03 i1="03" i2="X" l="ENG"><s0>Phosphorus</s0><s2>NC</s2><s5>03</s5></fC03><fC03 i1="03" i2="X" l="SPA"><s0>Fósforo</s0><s2>NC</s2><s5>03</s5></fC03><fC03 i1="04" i2="X" l="FRE"><s0>Traitement biologique</s0><s5>04</s5></fC03><fC03 i1="04" i2="X" l="ENG"><s0>Biological treatment</s0><s5>04</s5></fC03><fC03 i1="04" i2="X" l="SPA"><s0>Tratamiento biológico</s0><s5>04</s5></fC03><fC03 i1="05" i2="X" l="FRE"><s0>Epuration eau usée</s0><s5>05</s5></fC03><fC03 i1="05" i2="X" l="ENG"><s0>Waste water purification</s0><s5>05</s5></fC03><fC03 i1="05" i2="X" l="SPA"><s0>Depuración aguas servidas</s0><s5>05</s5></fC03><fC03 i1="06" i2="X" l="FRE"><s0>Biomasse</s0><s5>06</s5></fC03><fC03 i1="06" i2="X" l="ENG"><s0>Biomass</s0><s5>06</s5></fC03><fC03 i1="06" i2="X" l="SPA"><s0>Biomasa</s0><s5>06</s5></fC03><fC03 i1="07" i2="X" l="FRE"><s0>Aérobie</s0><s5>07</s5></fC03><fC03 i1="07" i2="X" l="ENG"><s0>Aerobe</s0><s5>07</s5></fC03><fC03 i1="07" i2="X" l="SPA"><s0>Aerobio</s0><s5>07</s5></fC03><fC03 i1="08" i2="X" l="FRE"><s0>Anaérobie</s0><s5>08</s5></fC03><fC03 i1="08" i2="X" l="ENG"><s0>Anaerobe</s0><s5>08</s5></fC03><fC03 i1="08" i2="X" l="SPA"><s0>Anaerobio</s0><s5>08</s5></fC03><fC03 i1="09" i2="X" l="FRE"><s0>Réacteur SBR</s0><s5>09</s5></fC03><fC03 i1="09" i2="X" l="ENG"><s0>Sequencing batch reactor</s0><s5>09</s5></fC03><fC03 i1="09" i2="X" l="SPA"><s0>Reactor SBR</s0><s5>09</s5></fC03><fC03 i1="10" i2="X" l="FRE"><s0>En discontinu</s0><s5>10</s5></fC03><fC03 i1="10" i2="X" l="ENG"><s0>Batchwise</s0><s5>10</s5></fC03><fC03 i1="10" i2="X" l="SPA"><s0>En discontinuo</s0><s5>10</s5></fC03><fC03 i1="11" i2="X" l="FRE"><s0>Modélisation</s0><s5>11</s5></fC03><fC03 i1="11" i2="X" l="ENG"><s0>Modeling</s0><s5>11</s5></fC03><fC03 i1="11" i2="X" l="SPA"><s0>Modelización</s0><s5>11</s5></fC03><fC03 i1="12" i2="X" l="FRE"><s0>Modèle mathématique</s0><s5>12</s5></fC03><fC03 i1="12" i2="X" l="ENG"><s0>Mathematical model</s0><s5>12</s5></fC03><fC03 i1="12" i2="X" l="SPA"><s0>Modelo matemático</s0><s5>12</s5></fC03><fC03 i1="13" i2="X" l="FRE"><s0>Epuration biologique</s0><s5>35</s5></fC03><fC03 i1="13" i2="X" l="ENG"><s0>Biological purification</s0><s5>35</s5></fC03><fC03 i1="13" i2="X" l="SPA"><s0>Depuración biológica</s0><s5>35</s5></fC03><fC03 i1="14" i2="X" l="FRE"><s0>Traitement déchet</s0><s5>36</s5></fC03><fC03 i1="14" i2="X" l="ENG"><s0>Waste treatment</s0><s5>36</s5></fC03><fC03 i1="14" i2="X" l="SPA"><s0>Tratamiento desperdicios</s0><s5>36</s5></fC03><fC03 i1="15" i2="X" l="FRE"><s0>Bioréacteur</s0><s5>37</s5></fC03><fC03 i1="15" i2="X" l="ENG"><s0>Bioreactor</s0><s5>37</s5></fC03><fC03 i1="15" i2="X" l="SPA"><s0>Biorreactor</s0><s5>37</s5></fC03><fN21><s1>198</s1></fN21><fN44 i1="01"><s1>OTO</s1></fN44><fN82><s1>OTO</s1></fN82></pA></standard></inist><affiliations><list><country><li>France</li><li>États-Unis</li></country><region><li>Grand Est</li><li>Illinois</li><li>Lorraine (région)</li></region><settlement><li>Nancy</li></settlement><orgName><li>Centre national de la recherche scientifique</li><li>Laboratoire réactions et génie des procédés</li><li>Université de Lorraine</li></orgName></list><tree><country name="États-Unis"><region name="Illinois"><name sortKey="Lopez, C" sort="Lopez, C" uniqKey="Lopez C" first="C." last="Lopez">C. Lopez</name></region><name sortKey="Morgenroth, E" sort="Morgenroth, E" uniqKey="Morgenroth E" first="E." last="Morgenroth">E. Morgenroth</name><name sortKey="Morgenroth, E" sort="Morgenroth, E" uniqKey="Morgenroth E" first="E." last="Morgenroth">E. Morgenroth</name></country><country name="France"><region name="Grand Est"><name sortKey="Pons, M N" sort="Pons, M N" uniqKey="Pons M" first="M. N." last="Pons">Marie-Noëlle Pons</name></region></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Lorraine/explor/LrgpV1/Data/PascalFrancis/Checkpoint
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000501 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/PascalFrancis/Checkpoint/biblio.hfd -nk 000501 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Lorraine
|area= LrgpV1
|flux= PascalFrancis
|étape= Checkpoint
|type= RBID
|clé= Pascal:06-0306140
|texte= Endogenous processes during long-term starvation in activated sludge performing enhanced biological phosphorus removal
}}
| This area was generated with Dilib version V0.6.32. |  |