State indicators for monitoring the anaerobic digestion process
Identifieur interne : 007518 ( Main/Exploration ); précédent : 007517; suivant : 007519State indicators for monitoring the anaerobic digestion process
Auteurs : Kanokwan Boe [Danemark] ; Damien John Batstone [Danemark, Australie] ; Jean-Phillippe Steyer [Danemark, France] ; Irini Angelidaki [Danemark]Source :
- Water research : (Oxford) [ 0043-1354 ] ; 2010.
Descripteurs français
- Pascal (Inist)
- Indicateur, Surveillance, Digestion anaérobie, Anaérobie, Fumier ferme, Biogaz, Acide gras volatil, Méthane, Réacteur parfaitement agité, Matière organique, Lipide, Charge organique, Persistance, Traitement biologique, Déchet animal, Déchet agricole, Composé organique volatil, Devenir polluant, Traitement déchet.
- Wicri :
- topic : Biogaz, Déchet agricole.
English descriptors
- KwdEn :
- Agricultural waste, Anaerobe, Anaerobic digestion, Animal waste, Biogas, Biological treatment, Continuous stirred tank reactor, Farmyard manure, Indicator, Lipids, Methane, Organic loading, Organic matter, Persistence, Pollutant behavior, Surveillance, Volatile fatty acid, Volatile organic compound, Waste treatment.
Abstract
Anaerobic process state indicators were used to monitor a manure digester exposed to different types of disturbances, in order to find the most proper indicator(s) for monitoring the biogas process. Online indicators tested were biogas production, pH, volatile fatty acids (VFA), and dissolved hydrogen. Offline indicators tested were methane and hydrogen content in the biogas. A CSTR reactor with 7.2 L working volume was operated at a varying hydraulic loading rate (HRT 10-20 days) for 200 days. During this period, the reactor was overloaded with extra organic matter such as glucose, lipid, gelatine, and bio-fibers, in order to create dynamic changes in the process state. Biogas production increased in response to the increase in organic load with a slight decrease in methane content. pH was relatively stable and did not show clear response to hydraulic load changes. However, pH changes were observed in response to extra organic load. Individual VFA concentrations were an effective indicator, with propionate persistent for the longest time after introduction of the disturbance. Dissolved hydrogen was very sensitive to the addition of easily degradable organics. However, it responded also to other disturbances such as slight air exposure which had no impact on process performance. A combination of acetate, propionate and biogas production is an effective combination to monitor this type of digesters effectively.
Affiliations:
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Lyngby</s2><s3>DNK</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Danemark</country><wicri:noRegion>2800, Kgs. Lyngby</wicri:noRegion></affiliation></author><author><name sortKey="Batstone, Damien John" sort="Batstone, Damien John" uniqKey="Batstone D" first="Damien John" last="Batstone">Damien John Batstone</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Environmental Engineering, Technical University of Denmark, Building 113</s1><s2>2800, Kgs. Lyngby</s2><s3>DNK</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Danemark</country><wicri:noRegion>2800, Kgs. Lyngby</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="02"><s1>Advanced Water Management Centre, The University of Queensland</s1><s2>St Lucia, QLD 4067</s2><s3>AUS</s3><sZ>2 aut.</sZ></inist:fA14><country>Australie</country><wicri:noRegion>St Lucia, QLD 4067</wicri:noRegion></affiliation></author><author><name sortKey="Steyer, Jean Phillippe" sort="Steyer, Jean Phillippe" uniqKey="Steyer J" first="Jean-Phillippe" last="Steyer">Jean-Phillippe Steyer</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Environmental Engineering, Technical University of Denmark, Building 113</s1><s2>2800, Kgs. Lyngby</s2><s3>DNK</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Danemark</country><wicri:noRegion>2800, Kgs. Lyngby</wicri:noRegion></affiliation><affiliation wicri:level="1"><inist:fA14 i1="03"><s1>Laboratory of environmental biotechnology, French National Institute for Agronomic Research, Avenue des Etangs</s1><s2>11100 Narbonne</s2><s3>FRA</s3><sZ>3 aut.</sZ></inist:fA14><country>France</country><wicri:noRegion>11100 Narbonne</wicri:noRegion><wicri:noRegion>Avenue des Etangs</wicri:noRegion><wicri:noRegion>11100 Narbonne</wicri:noRegion></affiliation></author><author><name sortKey="Angelidaki, Irini" sort="Angelidaki, Irini" uniqKey="Angelidaki I" first="Irini" last="Angelidaki">Irini Angelidaki</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Department of Environmental Engineering, Technical University of Denmark, Building 113</s1><s2>2800, Kgs. Lyngby</s2><s3>DNK</s3><sZ>1 aut.</sZ><sZ>2 aut.</sZ><sZ>3 aut.</sZ><sZ>4 aut.</sZ></inist:fA14><country>Danemark</country><wicri:noRegion>2800, Kgs. Lyngby</wicri:noRegion></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="2010">2010</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>Agricultural waste</term><term>Anaerobe</term><term>Anaerobic digestion</term><term>Animal waste</term><term>Biogas</term><term>Biological treatment</term><term>Continuous stirred tank reactor</term><term>Farmyard manure</term><term>Indicator</term><term>Lipids</term><term>Methane</term><term>Organic loading</term><term>Organic matter</term><term>Persistence</term><term>Pollutant behavior</term><term>Surveillance</term><term>Volatile fatty acid</term><term>Volatile organic compound</term><term>Waste treatment</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Indicateur</term><term>Surveillance</term><term>Digestion anaérobie</term><term>Anaérobie</term><term>Fumier ferme</term><term>Biogaz</term><term>Acide gras volatil</term><term>Méthane</term><term>Réacteur parfaitement agité</term><term>Matière organique</term><term>Lipide</term><term>Charge organique</term><term>Persistance</term><term>Traitement biologique</term><term>Déchet animal</term><term>Déchet agricole</term><term>Composé organique volatil</term><term>Devenir polluant</term><term>Traitement déchet</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Biogaz</term><term>Déchet agricole</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Anaerobic process state indicators were used to monitor a manure digester exposed to different types of disturbances, in order to find the most proper indicator(s) for monitoring the biogas process. Online indicators tested were biogas production, pH, volatile fatty acids (VFA), and dissolved hydrogen. Offline indicators tested were methane and hydrogen content in the biogas. A CSTR reactor with 7.2 L working volume was operated at a varying hydraulic loading rate (HRT 10-20 days) for 200 days. During this period, the reactor was overloaded with extra organic matter such as glucose, lipid, gelatine, and bio-fibers, in order to create dynamic changes in the process state. Biogas production increased in response to the increase in organic load with a slight decrease in methane content. pH was relatively stable and did not show clear response to hydraulic load changes. However, pH changes were observed in response to extra organic load. Individual VFA concentrations were an effective indicator, with propionate persistent for the longest time after introduction of the disturbance. Dissolved hydrogen was very sensitive to the addition of easily degradable organics. However, it responded also to other disturbances such as slight air exposure which had no impact on process performance. A combination of acetate, propionate and biogas production is an effective combination to monitor this type of digesters effectively.</div></front></TEI><affiliations><list><country><li>Australie</li><li>Danemark</li><li>France</li></country></list><tree><country name="Danemark"><noRegion><name sortKey="Boe, Kanokwan" sort="Boe, Kanokwan" uniqKey="Boe K" first="Kanokwan" last="Boe">Kanokwan Boe</name></noRegion><name sortKey="Angelidaki, Irini" sort="Angelidaki, Irini" uniqKey="Angelidaki I" first="Irini" last="Angelidaki">Irini Angelidaki</name><name sortKey="Batstone, Damien John" sort="Batstone, Damien John" uniqKey="Batstone D" first="Damien John" last="Batstone">Damien John Batstone</name><name sortKey="Steyer, Jean Phillippe" sort="Steyer, Jean Phillippe" uniqKey="Steyer J" first="Jean-Phillippe" last="Steyer">Jean-Phillippe Steyer</name></country><country name="Australie"><noRegion><name sortKey="Batstone, Damien John" sort="Batstone, Damien John" uniqKey="Batstone D" first="Damien John" last="Batstone">Damien John Batstone</name></noRegion></country><country name="France"><noRegion><name sortKey="Steyer, Jean Phillippe" sort="Steyer, Jean Phillippe" uniqKey="Steyer J" first="Jean-Phillippe" last="Steyer">Jean-Phillippe Steyer</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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