Testing the control of filamentous microorganisms responsible for foaming in a full-scale activated-sludge plant running with initial aerobic or anoxic contact zones
Effects of anoxic conditions on the growth of nocardioform actinomycetes and of aerobic conditions on growth of Microthrix parvicella in activated sludge were studied to prevent foaming caused by these filamentous microorganisms. The study was conducted on a full-scale plant consisting of three para...
Gespeichert in:
| Veröffentlicht in: | Bioresource technology 1997-04, Vol.60 (1), p.43-49 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 49 |
|---|---|
| container_issue | 1 |
| container_start_page | 43 |
| container_title | Bioresource technology |
| container_volume | 60 |
| creator | Madoni, Paolo Davoli, Donatella |
| description | Effects of anoxic conditions on the growth of nocardioform actinomycetes and of aerobic conditions on growth of
Microthrix parvicella in activated sludge were studied to prevent foaming caused by these filamentous microorganisms. The study was conducted on a full-scale plant consisting of three parallel lines fed with the same settled wastewater and subjected to severe foaming due to a massive growth of
M. parvicella in winter and of nocardioform actinomycetes in summer. The first line was rigged with an initial contact zone (selector) and the data were compared with those observed in one of the lines without a selector. A complete suppression of the growth of nocardioforms was obtained in experiments where returned activated sludge was mixed with wastewater under both anoxic conditions and high sludge loading (11.48 kg BOD
5/kg MLSS day). Under moderate sludge loading (1.80 kg BOD
5/kg MLSS day) conditions, the selector suppressed the growth of nocardioforms but was not able to improve settlement of the sludge and prevent the growth of other flamentous microorganisms responsible for foaming, such as
M. parvicella. Finally, a substantial suppression of the growth of
M. parvicella was obtained in experiments where returned activated sludge was mixed with wastewater under aerobic conditions and with a high sludge loading (24 kg BOD
5kg MLSS day); as a consequence, the foaming produced by this filamentous microorganism was highly reduced. |
| doi_str_mv | 10.1016/S0960-8524(96)00151-4 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_16468820</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0960852496001514</els_id><sourcerecordid>16468820</sourcerecordid><originalsourceid>FETCH-LOGICAL-c429t-248c93908bc2c7de09e7de49f075f6387b2005010523e36a535514d5b877ba0b3</originalsourceid><addsrcrecordid>eNqNkc1u1TAQhSMEEpfCIyB5gRAsAmMntuMVQhW0SJVYUNaW40xujRz7Yjst8D68J05v1W1Z-EfyN2fG5zTNSwrvKFDx_hsoAe3AWf9GibcAlNO2f9Ts6CC7likpHje7e-Rp8yznHwDQUcl2zd9LzMWFPSlXSGwMJUVP4kxm582CocQ1k8XZFGPam-DykknCfIghu9EjmWOqyyybggvEkHn1vs3W1Ddji7s2Bac2-3XaIzl4EwpJawgbfuPKVa1xxRlPDKY4OkuqnAnxV71ts1QF8icGzM-bJ7PxGV_cnSfN98-fLk_P24uvZ19OP160tmeqtKwfrOoUDKNlVk4ICuveqxkkn0U3yJEBcKDAWYedMLzjnPYTHwcpRwNjd9K8PuoeUvy5Vmf04rJFXwfH6oSmohfDwOA_QBiYYvxhsBNMcqkqyI9g9TrnhLM-JLeY9FtT0FvM-jZmvWWoldC3Meu-1r26a2A22-dkgnX5vpjJ-mMpKvbhiGG179ph0tk6DBYnl9AWPUX3QKN_pi6_FQ</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>13627579</pqid></control><display><type>article</type><title>Testing the control of filamentous microorganisms responsible for foaming in a full-scale activated-sludge plant running with initial aerobic or anoxic contact zones</title><source>Elsevier ScienceDirect Journals Complete</source><creator>Madoni, Paolo ; Davoli, Donatella</creator><creatorcontrib>Madoni, Paolo ; Davoli, Donatella</creatorcontrib><description>Effects of anoxic conditions on the growth of nocardioform actinomycetes and of aerobic conditions on growth of
Microthrix parvicella in activated sludge were studied to prevent foaming caused by these filamentous microorganisms. The study was conducted on a full-scale plant consisting of three parallel lines fed with the same settled wastewater and subjected to severe foaming due to a massive growth of
M. parvicella in winter and of nocardioform actinomycetes in summer. The first line was rigged with an initial contact zone (selector) and the data were compared with those observed in one of the lines without a selector. A complete suppression of the growth of nocardioforms was obtained in experiments where returned activated sludge was mixed with wastewater under both anoxic conditions and high sludge loading (11.48 kg BOD
5/kg MLSS day). Under moderate sludge loading (1.80 kg BOD
5/kg MLSS day) conditions, the selector suppressed the growth of nocardioforms but was not able to improve settlement of the sludge and prevent the growth of other flamentous microorganisms responsible for foaming, such as
M. parvicella. Finally, a substantial suppression of the growth of
M. parvicella was obtained in experiments where returned activated sludge was mixed with wastewater under aerobic conditions and with a high sludge loading (24 kg BOD
5kg MLSS day); as a consequence, the foaming produced by this filamentous microorganism was highly reduced.</description><identifier>ISSN: 0960-8524</identifier><identifier>EISSN: 1873-2976</identifier><identifier>DOI: 10.1016/S0960-8524(96)00151-4</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Activated sludge ; aerobic and anoxic contact zone ; Biological and medical sciences ; biological foam ; Biological treatment of sewage sludges and wastes ; Biotechnology ; Environment and pollution ; filamentous microorganisms ; Fundamental and applied biological sciences. Psychology ; Industrial applications and implications. Economical aspects ; Microthrix parvicella ; nocardioform actinomycetes</subject><ispartof>Bioresource technology, 1997-04, Vol.60 (1), p.43-49</ispartof><rights>1997</rights><rights>1997 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c429t-248c93908bc2c7de09e7de49f075f6387b2005010523e36a535514d5b877ba0b3</citedby><cites>FETCH-LOGICAL-c429t-248c93908bc2c7de09e7de49f075f6387b2005010523e36a535514d5b877ba0b3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/S0960-8524(96)00151-4$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3541,27915,27916,45986</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2700576$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Madoni, Paolo</creatorcontrib><creatorcontrib>Davoli, Donatella</creatorcontrib><title>Testing the control of filamentous microorganisms responsible for foaming in a full-scale activated-sludge plant running with initial aerobic or anoxic contact zones</title><title>Bioresource technology</title><description>Effects of anoxic conditions on the growth of nocardioform actinomycetes and of aerobic conditions on growth of
Microthrix parvicella in activated sludge were studied to prevent foaming caused by these filamentous microorganisms. The study was conducted on a full-scale plant consisting of three parallel lines fed with the same settled wastewater and subjected to severe foaming due to a massive growth of
M. parvicella in winter and of nocardioform actinomycetes in summer. The first line was rigged with an initial contact zone (selector) and the data were compared with those observed in one of the lines without a selector. A complete suppression of the growth of nocardioforms was obtained in experiments where returned activated sludge was mixed with wastewater under both anoxic conditions and high sludge loading (11.48 kg BOD
5/kg MLSS day). Under moderate sludge loading (1.80 kg BOD
5/kg MLSS day) conditions, the selector suppressed the growth of nocardioforms but was not able to improve settlement of the sludge and prevent the growth of other flamentous microorganisms responsible for foaming, such as
M. parvicella. Finally, a substantial suppression of the growth of
M. parvicella was obtained in experiments where returned activated sludge was mixed with wastewater under aerobic conditions and with a high sludge loading (24 kg BOD
5kg MLSS day); as a consequence, the foaming produced by this filamentous microorganism was highly reduced.</description><subject>Activated sludge</subject><subject>aerobic and anoxic contact zone</subject><subject>Biological and medical sciences</subject><subject>biological foam</subject><subject>Biological treatment of sewage sludges and wastes</subject><subject>Biotechnology</subject><subject>Environment and pollution</subject><subject>filamentous microorganisms</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Industrial applications and implications. Economical aspects</subject><subject>Microthrix parvicella</subject><subject>nocardioform actinomycetes</subject><issn>0960-8524</issn><issn>1873-2976</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1997</creationdate><recordtype>article</recordtype><recordid>eNqNkc1u1TAQhSMEEpfCIyB5gRAsAmMntuMVQhW0SJVYUNaW40xujRz7Yjst8D68J05v1W1Z-EfyN2fG5zTNSwrvKFDx_hsoAe3AWf9GibcAlNO2f9Ts6CC7likpHje7e-Rp8yznHwDQUcl2zd9LzMWFPSlXSGwMJUVP4kxm582CocQ1k8XZFGPam-DykknCfIghu9EjmWOqyyybggvEkHn1vs3W1Ddji7s2Bac2-3XaIzl4EwpJawgbfuPKVa1xxRlPDKY4OkuqnAnxV71ts1QF8icGzM-bJ7PxGV_cnSfN98-fLk_P24uvZ19OP160tmeqtKwfrOoUDKNlVk4ICuveqxkkn0U3yJEBcKDAWYedMLzjnPYTHwcpRwNjd9K8PuoeUvy5Vmf04rJFXwfH6oSmohfDwOA_QBiYYvxhsBNMcqkqyI9g9TrnhLM-JLeY9FtT0FvM-jZmvWWoldC3Meu-1r26a2A22-dkgnX5vpjJ-mMpKvbhiGG179ph0tk6DBYnl9AWPUX3QKN_pi6_FQ</recordid><startdate>19970401</startdate><enddate>19970401</enddate><creator>Madoni, Paolo</creator><creator>Davoli, Donatella</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7QO</scope><scope>8FD</scope><scope>FR3</scope><scope>P64</scope><scope>7T7</scope><scope>C1K</scope></search><sort><creationdate>19970401</creationdate><title>Testing the control of filamentous microorganisms responsible for foaming in a full-scale activated-sludge plant running with initial aerobic or anoxic contact zones</title><author>Madoni, Paolo ; Davoli, Donatella</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c429t-248c93908bc2c7de09e7de49f075f6387b2005010523e36a535514d5b877ba0b3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1997</creationdate><topic>Activated sludge</topic><topic>aerobic and anoxic contact zone</topic><topic>Biological and medical sciences</topic><topic>biological foam</topic><topic>Biological treatment of sewage sludges and wastes</topic><topic>Biotechnology</topic><topic>Environment and pollution</topic><topic>filamentous microorganisms</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Industrial applications and implications. Economical aspects</topic><topic>Microthrix parvicella</topic><topic>nocardioform actinomycetes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Madoni, Paolo</creatorcontrib><creatorcontrib>Davoli, Donatella</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aqualine</collection><collection>Biotechnology Research Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Environmental Sciences and Pollution Management</collection><jtitle>Bioresource technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Madoni, Paolo</au><au>Davoli, Donatella</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Testing the control of filamentous microorganisms responsible for foaming in a full-scale activated-sludge plant running with initial aerobic or anoxic contact zones</atitle><jtitle>Bioresource technology</jtitle><date>1997-04-01</date><risdate>1997</risdate><volume>60</volume><issue>1</issue><spage>43</spage><epage>49</epage><pages>43-49</pages><issn>0960-8524</issn><eissn>1873-2976</eissn><abstract>Effects of anoxic conditions on the growth of nocardioform actinomycetes and of aerobic conditions on growth of
Microthrix parvicella in activated sludge were studied to prevent foaming caused by these filamentous microorganisms. The study was conducted on a full-scale plant consisting of three parallel lines fed with the same settled wastewater and subjected to severe foaming due to a massive growth of
M. parvicella in winter and of nocardioform actinomycetes in summer. The first line was rigged with an initial contact zone (selector) and the data were compared with those observed in one of the lines without a selector. A complete suppression of the growth of nocardioforms was obtained in experiments where returned activated sludge was mixed with wastewater under both anoxic conditions and high sludge loading (11.48 kg BOD
5/kg MLSS day). Under moderate sludge loading (1.80 kg BOD
5/kg MLSS day) conditions, the selector suppressed the growth of nocardioforms but was not able to improve settlement of the sludge and prevent the growth of other flamentous microorganisms responsible for foaming, such as
M. parvicella. Finally, a substantial suppression of the growth of
M. parvicella was obtained in experiments where returned activated sludge was mixed with wastewater under aerobic conditions and with a high sludge loading (24 kg BOD
5kg MLSS day); as a consequence, the foaming produced by this filamentous microorganism was highly reduced.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/S0960-8524(96)00151-4</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0960-8524 |
| ispartof | Bioresource technology, 1997-04, Vol.60 (1), p.43-49 |
| issn | 0960-8524 1873-2976 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_16468820 |
| source | Elsevier ScienceDirect Journals Complete |
| subjects | Activated sludge aerobic and anoxic contact zone Biological and medical sciences biological foam Biological treatment of sewage sludges and wastes Biotechnology Environment and pollution filamentous microorganisms Fundamental and applied biological sciences. Psychology Industrial applications and implications. Economical aspects Microthrix parvicella nocardioform actinomycetes |
| title | Testing the control of filamentous microorganisms responsible for foaming in a full-scale activated-sludge plant running with initial aerobic or anoxic contact zones |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-14T17%3A41%3A17IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Testing%20the%20control%20of%20filamentous%20microorganisms%20responsible%20for%20foaming%20in%20a%20full-scale%20activated-sludge%20plant%20running%20with%20initial%20aerobic%20or%20anoxic%20contact%20zones&rft.jtitle=Bioresource%20technology&rft.au=Madoni,%20Paolo&rft.date=1997-04-01&rft.volume=60&rft.issue=1&rft.spage=43&rft.epage=49&rft.pages=43-49&rft.issn=0960-8524&rft.eissn=1873-2976&rft_id=info:doi/10.1016/S0960-8524(96)00151-4&rft_dat=%3Cproquest_cross%3E16468820%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=13627579&rft_id=info:pmid/&rft_els_id=S0960852496001514&rfr_iscdi=true |