Thermo-alkaline pretreatment of waste activated sludge at low-temperatures: Effects on sludge disintegration, methane production, and methanogen community structure
•Effects of low-temperature thermo-alkaline pretreatment of sludge were examined.•Changes in sludge degradability with respect to treatment conditions were assessed.•Effective disintegration of sludge and enhanced production of CH4 were achieved.•Models to approximate sludge disintegration degree an...
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| Veröffentlicht in: | Bioresource technology 2013-09, Vol.144, p.194-201 |
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| creator | Kim, Jaai Yu, Youngseob Lee, Changsoo |
| description | •Effects of low-temperature thermo-alkaline pretreatment of sludge were examined.•Changes in sludge degradability with respect to treatment conditions were assessed.•Effective disintegration of sludge and enhanced production of CH4 were achieved.•Models to approximate sludge disintegration degree and CH4 production were created.•NaOH treatment had a significant influence on the methanogen community structure.
Low-temperature thermo-alkaline pretreatment of waste activated sludge (WAS) was studied, within the region of 0–0.2M NaOH and 60–90°C, for the effects of NaOH concentration and temperature on sludge degradability in anaerobic digestion (AD). Significant disintegration of sludge solids (up to 75.6%) and an increase in methane production (up to 70.6%) were observed in the pretreatment trials. Two quadratic models were successfully generated by response surface analysis (R2>0.9, p |
| doi_str_mv | 10.1016/j.biortech.2013.06.115 |
| format | Article |
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Low-temperature thermo-alkaline pretreatment of waste activated sludge (WAS) was studied, within the region of 0–0.2M NaOH and 60–90°C, for the effects of NaOH concentration and temperature on sludge degradability in anaerobic digestion (AD). Significant disintegration of sludge solids (up to 75.6%) and an increase in methane production (up to 70.6%) were observed in the pretreatment trials. Two quadratic models were successfully generated by response surface analysis (R2>0.9, p<0.05) to approximate how the degree of sludge disintegration (SD) and methane production (MP) respond to changes in the pretreatment conditions. The maximum responses of SD (77.8%) and MP (73.9% increase over the control) were shown at [0.16M NaOH, 90°C] and [0.10M NaOH, 73.7°C], respectively. NaOH addition showed a significant influence on the evolution of methanogen community structure during AD, whereas temperature did not. Aceticlastic Methanosaeta and Methanosarcina speceies were likely the major methanogens.</description><identifier>ISSN: 0960-8524</identifier><identifier>EISSN: 1873-2976</identifier><identifier>DOI: 10.1016/j.biortech.2013.06.115</identifier><identifier>PMID: 23871920</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Activated sludge ; Alkalies - pharmacology ; Anaerobic digestion ; Applied sciences ; Approximation ; Bacteria - drug effects ; Bacteria - growth & development ; Base Sequence ; Biodegradation, Environmental - drug effects ; Biological and medical sciences ; Biological treatment of sewage sludges and wastes ; Biotechnology ; Cold Temperature ; Communities ; Denaturing Gradient Gel Electrophoresis ; Disintegration ; Environment and pollution ; Exact sciences and technology ; Fundamental and applied biological sciences. Psychology ; Industrial applications and implications. Economical aspects ; Methane ; Methane - biosynthesis ; Methanogen community structure ; Methanosaeta ; Methanosarcina ; Models, Theoretical ; Molecular Sequence Data ; Phylogeny ; Pollution ; Pretreatment ; Response surface analysis ; RNA, Ribosomal, 16S - genetics ; Sewage - chemistry ; Sludge ; Sodium Hydroxide - pharmacology ; Thermo-alkaline pretreatment ; Waste activated sludge ; Waste Disposal, Fluid ; Wastes</subject><ispartof>Bioresource technology, 2013-09, Vol.144, p.194-201</ispartof><rights>2013 Elsevier Ltd</rights><rights>2014 INIST-CNRS</rights><rights>Copyright © 2013 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c464t-e5f396fc7f9c582498a4c94a38495c1410cfd78a9d1803f4f067af65cb8569763</citedby><cites>FETCH-LOGICAL-c464t-e5f396fc7f9c582498a4c94a38495c1410cfd78a9d1803f4f067af65cb8569763</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.biortech.2013.06.115$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3549,27923,27924,45994</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27697328$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23871920$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Kim, Jaai</creatorcontrib><creatorcontrib>Yu, Youngseob</creatorcontrib><creatorcontrib>Lee, Changsoo</creatorcontrib><title>Thermo-alkaline pretreatment of waste activated sludge at low-temperatures: Effects on sludge disintegration, methane production, and methanogen community structure</title><title>Bioresource technology</title><addtitle>Bioresour Technol</addtitle><description>•Effects of low-temperature thermo-alkaline pretreatment of sludge were examined.•Changes in sludge degradability with respect to treatment conditions were assessed.•Effective disintegration of sludge and enhanced production of CH4 were achieved.•Models to approximate sludge disintegration degree and CH4 production were created.•NaOH treatment had a significant influence on the methanogen community structure.
Low-temperature thermo-alkaline pretreatment of waste activated sludge (WAS) was studied, within the region of 0–0.2M NaOH and 60–90°C, for the effects of NaOH concentration and temperature on sludge degradability in anaerobic digestion (AD). Significant disintegration of sludge solids (up to 75.6%) and an increase in methane production (up to 70.6%) were observed in the pretreatment trials. Two quadratic models were successfully generated by response surface analysis (R2>0.9, p<0.05) to approximate how the degree of sludge disintegration (SD) and methane production (MP) respond to changes in the pretreatment conditions. The maximum responses of SD (77.8%) and MP (73.9% increase over the control) were shown at [0.16M NaOH, 90°C] and [0.10M NaOH, 73.7°C], respectively. NaOH addition showed a significant influence on the evolution of methanogen community structure during AD, whereas temperature did not. Aceticlastic Methanosaeta and Methanosarcina speceies were likely the major methanogens.</description><subject>Activated sludge</subject><subject>Alkalies - pharmacology</subject><subject>Anaerobic digestion</subject><subject>Applied sciences</subject><subject>Approximation</subject><subject>Bacteria - drug effects</subject><subject>Bacteria - growth & development</subject><subject>Base Sequence</subject><subject>Biodegradation, Environmental - drug effects</subject><subject>Biological and medical sciences</subject><subject>Biological treatment of sewage sludges and wastes</subject><subject>Biotechnology</subject><subject>Cold Temperature</subject><subject>Communities</subject><subject>Denaturing Gradient Gel Electrophoresis</subject><subject>Disintegration</subject><subject>Environment and pollution</subject><subject>Exact sciences and technology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Industrial applications and implications. Economical aspects</subject><subject>Methane</subject><subject>Methane - biosynthesis</subject><subject>Methanogen community structure</subject><subject>Methanosaeta</subject><subject>Methanosarcina</subject><subject>Models, Theoretical</subject><subject>Molecular Sequence Data</subject><subject>Phylogeny</subject><subject>Pollution</subject><subject>Pretreatment</subject><subject>Response surface analysis</subject><subject>RNA, Ribosomal, 16S - genetics</subject><subject>Sewage - chemistry</subject><subject>Sludge</subject><subject>Sodium Hydroxide - pharmacology</subject><subject>Thermo-alkaline pretreatment</subject><subject>Waste activated sludge</subject><subject>Waste Disposal, Fluid</subject><subject>Wastes</subject><issn>0960-8524</issn><issn>1873-2976</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkc1uEzEUhUcIRNPCK1TeILFggv_GP6xAVQtIldiUteV4rhOHmXGwPa36PjwobpPAMitLR9-99_icprkkeEkwER-3y1WIqYDbLCkmbInFkpDuRbMgSrKWaileNgusBW5VR_lZc57zFmPMiKSvmzPKlCSa4kXz524DaYytHX7ZIUyAdglKAltGmAqKHj3YXABZV8K9LdCjPMz9ugoFDfGhLTDuINkyJ8if0LX34EpGcTpifchhKrCuSIjTBzRC2djnK7Gf3V6zU3_Q4xom5OI4zlMojyiXVJm6-k3zytshw9vDe9H8vLm-u_rW3v74-v3qy23ruOClhc4zLbyTXrtOUa6V5U5zyxTXnSOcYOd7qazuicLMc4-FtF50bqU6URNjF837_d5q7_cMuZgxZAfDUC3HORsipNSEcapOox3GUnPK6GmUUyxwR7SuqNijLsWcE3izS2G06dEQbJ56N1tz7N089W6wMLX3Onh5uDGvRuj_jR2LrsC7A2Czs4NPdnIh_-dkDYA9_-vznoOa832AZLILMDnoQ6rdmj6GU17-Aqu30ow</recordid><startdate>20130901</startdate><enddate>20130901</enddate><creator>Kim, Jaai</creator><creator>Yu, Youngseob</creator><creator>Lee, Changsoo</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>7QH</scope><scope>7QO</scope><scope>7ST</scope><scope>7UA</scope><scope>8FD</scope><scope>C1K</scope><scope>F1W</scope><scope>FR3</scope><scope>H97</scope><scope>L.G</scope><scope>P64</scope><scope>SOI</scope><scope>7SU</scope><scope>7TB</scope><scope>KR7</scope></search><sort><creationdate>20130901</creationdate><title>Thermo-alkaline pretreatment of waste activated sludge at low-temperatures: Effects on sludge disintegration, methane production, and methanogen community structure</title><author>Kim, Jaai ; Yu, Youngseob ; Lee, Changsoo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c464t-e5f396fc7f9c582498a4c94a38495c1410cfd78a9d1803f4f067af65cb8569763</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Activated sludge</topic><topic>Alkalies - pharmacology</topic><topic>Anaerobic digestion</topic><topic>Applied sciences</topic><topic>Approximation</topic><topic>Bacteria - drug effects</topic><topic>Bacteria - growth & development</topic><topic>Base Sequence</topic><topic>Biodegradation, Environmental - drug effects</topic><topic>Biological and medical sciences</topic><topic>Biological treatment of sewage sludges and wastes</topic><topic>Biotechnology</topic><topic>Cold Temperature</topic><topic>Communities</topic><topic>Denaturing Gradient Gel Electrophoresis</topic><topic>Disintegration</topic><topic>Environment and pollution</topic><topic>Exact sciences and technology</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Industrial applications and implications. Economical aspects</topic><topic>Methane</topic><topic>Methane - biosynthesis</topic><topic>Methanogen community structure</topic><topic>Methanosaeta</topic><topic>Methanosarcina</topic><topic>Models, Theoretical</topic><topic>Molecular Sequence Data</topic><topic>Phylogeny</topic><topic>Pollution</topic><topic>Pretreatment</topic><topic>Response surface analysis</topic><topic>RNA, Ribosomal, 16S - genetics</topic><topic>Sewage - chemistry</topic><topic>Sludge</topic><topic>Sodium Hydroxide - pharmacology</topic><topic>Thermo-alkaline pretreatment</topic><topic>Waste activated sludge</topic><topic>Waste Disposal, Fluid</topic><topic>Wastes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kim, Jaai</creatorcontrib><creatorcontrib>Yu, Youngseob</creatorcontrib><creatorcontrib>Lee, Changsoo</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><collection>Aqualine</collection><collection>Biotechnology Research Abstracts</collection><collection>Environment Abstracts</collection><collection>Water Resources Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Engineering Research Database</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 3: Aquatic Pollution & Environmental Quality</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>Environment Abstracts</collection><collection>Environmental Engineering Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Civil Engineering Abstracts</collection><jtitle>Bioresource technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kim, Jaai</au><au>Yu, Youngseob</au><au>Lee, Changsoo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermo-alkaline pretreatment of waste activated sludge at low-temperatures: Effects on sludge disintegration, methane production, and methanogen community structure</atitle><jtitle>Bioresource technology</jtitle><addtitle>Bioresour Technol</addtitle><date>2013-09-01</date><risdate>2013</risdate><volume>144</volume><spage>194</spage><epage>201</epage><pages>194-201</pages><issn>0960-8524</issn><eissn>1873-2976</eissn><abstract>•Effects of low-temperature thermo-alkaline pretreatment of sludge were examined.•Changes in sludge degradability with respect to treatment conditions were assessed.•Effective disintegration of sludge and enhanced production of CH4 were achieved.•Models to approximate sludge disintegration degree and CH4 production were created.•NaOH treatment had a significant influence on the methanogen community structure.
Low-temperature thermo-alkaline pretreatment of waste activated sludge (WAS) was studied, within the region of 0–0.2M NaOH and 60–90°C, for the effects of NaOH concentration and temperature on sludge degradability in anaerobic digestion (AD). Significant disintegration of sludge solids (up to 75.6%) and an increase in methane production (up to 70.6%) were observed in the pretreatment trials. Two quadratic models were successfully generated by response surface analysis (R2>0.9, p<0.05) to approximate how the degree of sludge disintegration (SD) and methane production (MP) respond to changes in the pretreatment conditions. The maximum responses of SD (77.8%) and MP (73.9% increase over the control) were shown at [0.16M NaOH, 90°C] and [0.10M NaOH, 73.7°C], respectively. NaOH addition showed a significant influence on the evolution of methanogen community structure during AD, whereas temperature did not. Aceticlastic Methanosaeta and Methanosarcina speceies were likely the major methanogens.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><pmid>23871920</pmid><doi>10.1016/j.biortech.2013.06.115</doi><tpages>8</tpages></addata></record> |
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| ispartof | Bioresource technology, 2013-09, Vol.144, p.194-201 |
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| source | Elsevier ScienceDirect Journals Complete - AutoHoldings; MEDLINE |
| subjects | Activated sludge Alkalies - pharmacology Anaerobic digestion Applied sciences Approximation Bacteria - drug effects Bacteria - growth & development Base Sequence Biodegradation, Environmental - drug effects Biological and medical sciences Biological treatment of sewage sludges and wastes Biotechnology Cold Temperature Communities Denaturing Gradient Gel Electrophoresis Disintegration Environment and pollution Exact sciences and technology Fundamental and applied biological sciences. Psychology Industrial applications and implications. Economical aspects Methane Methane - biosynthesis Methanogen community structure Methanosaeta Methanosarcina Models, Theoretical Molecular Sequence Data Phylogeny Pollution Pretreatment Response surface analysis RNA, Ribosomal, 16S - genetics Sewage - chemistry Sludge Sodium Hydroxide - pharmacology Thermo-alkaline pretreatment Waste activated sludge Waste Disposal, Fluid Wastes |
| title | Thermo-alkaline pretreatment of waste activated sludge at low-temperatures: Effects on sludge disintegration, methane production, and methanogen community structure |
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