Enhanced methane production from Taihu Lake blue algae by anaerobic co-digestion with corn straw in continuous feed digesters
► Methane production from Taihu algae succeeded with continuous reactors. ► Ammonia from algae decay inhibited mainly acetate and propionate degradation. ► Co-digestion of algae with corn straw enhanced methane productivity and VS removal. ► Optimal C/N ratio of 20:1 (g/g) was found. ► Rate limiting...
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| Veröffentlicht in: | Bioresource technology 2013-04, Vol.134, p.264-270 |
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| creator | Zhong, Weizhang Chi, Lina Luo, Yijing Zhang, Zhongzhi Zhang, Zhenjia Wu, Wei-Min |
| description | ► Methane production from Taihu algae succeeded with continuous reactors. ► Ammonia from algae decay inhibited mainly acetate and propionate degradation. ► Co-digestion of algae with corn straw enhanced methane productivity and VS removal. ► Optimal C/N ratio of 20:1 (g/g) was found. ► Rate limiting step is not hydrolysis but acetate and propionate degradation.
Anaerobic digestion of Taihu blue algae was tested in laboratory scale, continuous feed digesters (hydraulic retention time 10days) at 35°C and various organic loading rates (OLR). The methane production and biomass digestion performed well at OLR below 4.00gVSL−1d−1 but deteriorated as OLR increased due to the increased ammonia concentration, causing inhibition mainly to acetate and propionate degradation. Supplementing corn straw as co-feedstock significantly improved the digestion performance. The optimal C/N ratio for the co-digestion was 20:1 at OLR of 6.00gVSL−1d−1. Methane yield of 234mL CH4 gVS−1 and methane productivity of 1404mL CH4 L−1d−1 were achieved with solid removal of 63%. Compared with the algae alone, the methane productivity was increased by 46% with less accumulation of ammonia and fatty acids. The reactor rate-limiting step was acetate and propionate degradation. |
| doi_str_mv | 10.1016/j.biortech.2013.02.060 |
| format | Article |
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Anaerobic digestion of Taihu blue algae was tested in laboratory scale, continuous feed digesters (hydraulic retention time 10days) at 35°C and various organic loading rates (OLR). The methane production and biomass digestion performed well at OLR below 4.00gVSL−1d−1 but deteriorated as OLR increased due to the increased ammonia concentration, causing inhibition mainly to acetate and propionate degradation. Supplementing corn straw as co-feedstock significantly improved the digestion performance. The optimal C/N ratio for the co-digestion was 20:1 at OLR of 6.00gVSL−1d−1. Methane yield of 234mL CH4 gVS−1 and methane productivity of 1404mL CH4 L−1d−1 were achieved with solid removal of 63%. Compared with the algae alone, the methane productivity was increased by 46% with less accumulation of ammonia and fatty acids. The reactor rate-limiting step was acetate and propionate degradation.</description><identifier>ISSN: 0960-8524</identifier><identifier>EISSN: 1873-2976</identifier><identifier>DOI: 10.1016/j.biortech.2013.02.060</identifier><identifier>PMID: 23506978</identifier><language>eng</language><publisher>Kidlington: Elsevier Ltd</publisher><subject>Acetates ; Agronomy. Soil science and plant productions ; Algae ; Anaerobic digestion ; Anaerobiosis ; Biodegradation, Environmental ; Biological and medical sciences ; Biological Oxygen Demand Analysis ; Biological treatment of sewage sludges and wastes ; Biomass ; Bioreactors - microbiology ; Biotechnology ; Biotechnology - instrumentation ; Biotechnology - methods ; C/N ratio ; Carbon - analysis ; Cellulase - metabolism ; China ; Corn straw ; Degradation ; Digesters ; Digestion ; Environment and pollution ; Fatty Acids, Volatile - analysis ; Food industries ; Fundamental and applied biological sciences. Psychology ; General agronomy. Plant production ; Industrial applications and implications. Economical aspects ; Lakes - microbiology ; Methane ; Methane - biosynthesis ; Microcystis - metabolism ; Nitrogen - analysis ; Oxygen - metabolism ; Productivity ; Straw ; Taihu Lake blue algae ; Time Factors ; Use and upgrading of agricultural and food by-products. Biotechnology ; Use of agricultural and forest wastes. Biomass use, bioconversion ; Waste Products - analysis ; Zea mays - chemistry</subject><ispartof>Bioresource technology, 2013-04, Vol.134, p.264-270</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-73cacacd5427e03e76a9f17dcbe1689a642ec754afea683beff63cedb267e7cc3</citedby><cites>FETCH-LOGICAL-c464t-73cacacd5427e03e76a9f17dcbe1689a642ec754afea683beff63cedb267e7cc3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S096085241300285X$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=27283403$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/23506978$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhong, Weizhang</creatorcontrib><creatorcontrib>Chi, Lina</creatorcontrib><creatorcontrib>Luo, Yijing</creatorcontrib><creatorcontrib>Zhang, Zhongzhi</creatorcontrib><creatorcontrib>Zhang, Zhenjia</creatorcontrib><creatorcontrib>Wu, Wei-Min</creatorcontrib><title>Enhanced methane production from Taihu Lake blue algae by anaerobic co-digestion with corn straw in continuous feed digesters</title><title>Bioresource technology</title><addtitle>Bioresour Technol</addtitle><description>► Methane production from Taihu algae succeeded with continuous reactors. ► Ammonia from algae decay inhibited mainly acetate and propionate degradation. ► Co-digestion of algae with corn straw enhanced methane productivity and VS removal. ► Optimal C/N ratio of 20:1 (g/g) was found. ► Rate limiting step is not hydrolysis but acetate and propionate degradation.
Anaerobic digestion of Taihu blue algae was tested in laboratory scale, continuous feed digesters (hydraulic retention time 10days) at 35°C and various organic loading rates (OLR). The methane production and biomass digestion performed well at OLR below 4.00gVSL−1d−1 but deteriorated as OLR increased due to the increased ammonia concentration, causing inhibition mainly to acetate and propionate degradation. Supplementing corn straw as co-feedstock significantly improved the digestion performance. The optimal C/N ratio for the co-digestion was 20:1 at OLR of 6.00gVSL−1d−1. Methane yield of 234mL CH4 gVS−1 and methane productivity of 1404mL CH4 L−1d−1 were achieved with solid removal of 63%. Compared with the algae alone, the methane productivity was increased by 46% with less accumulation of ammonia and fatty acids. The reactor rate-limiting step was acetate and propionate degradation.</description><subject>Acetates</subject><subject>Agronomy. Soil science and plant productions</subject><subject>Algae</subject><subject>Anaerobic digestion</subject><subject>Anaerobiosis</subject><subject>Biodegradation, Environmental</subject><subject>Biological and medical sciences</subject><subject>Biological Oxygen Demand Analysis</subject><subject>Biological treatment of sewage sludges and wastes</subject><subject>Biomass</subject><subject>Bioreactors - microbiology</subject><subject>Biotechnology</subject><subject>Biotechnology - instrumentation</subject><subject>Biotechnology - methods</subject><subject>C/N ratio</subject><subject>Carbon - analysis</subject><subject>Cellulase - metabolism</subject><subject>China</subject><subject>Corn straw</subject><subject>Degradation</subject><subject>Digesters</subject><subject>Digestion</subject><subject>Environment and pollution</subject><subject>Fatty Acids, Volatile - analysis</subject><subject>Food industries</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>General agronomy. Plant production</subject><subject>Industrial applications and implications. Economical aspects</subject><subject>Lakes - microbiology</subject><subject>Methane</subject><subject>Methane - biosynthesis</subject><subject>Microcystis - metabolism</subject><subject>Nitrogen - analysis</subject><subject>Oxygen - metabolism</subject><subject>Productivity</subject><subject>Straw</subject><subject>Taihu Lake blue algae</subject><subject>Time Factors</subject><subject>Use and upgrading of agricultural and food by-products. Biotechnology</subject><subject>Use of agricultural and forest wastes. Biomass use, bioconversion</subject><subject>Waste Products - analysis</subject><subject>Zea mays - chemistry</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>eNqFkctu1DAUQC0EokPhFypvkNgkXNuJnexAVXlII7Epa8txbjoekrjYCVUX_Dt3mCksR174oXNfPoxdCSgFCP1-X3YhpgX9rpQgVAmyBA3P2EY0RhWyNfo520CroWhqWV2wVznvAUAJI1-yC6lq0K1pNuz3zbxzs8eeT7jQCfl9iv3qlxBnPqQ48VsXdivfuh_Iu3FF7sY7R8dH7maHKXbBcx-LPtxh_hv0EJYdvaSZ5yW5Bx5mus1LmNe4Zj4glTrCmPJr9mJwY8Y3p_2Sff90c3v9pdh--_z1-uO28JWulsIo72j1dSUNgkKjXTsI0_sOhW5apyuJ3tSVG9DpRnU4DFrRTJ3UBo336pK9O-al4X6uVNtOIXscRxqYurKCMkhDvyLPozWA0a2uzHlUyVqRCnXIqo-oTzHnhIO9T2Fy6dEKsAehdm-fhNqDUAvSklAKvDrVWLsJ-39hTwYJeHsCXPZuHBLZDPk_Z2SjKlDEfThySP_8K2Cy2Qc8mA8J_WL7GM718gexuMQt</recordid><startdate>20130401</startdate><enddate>20130401</enddate><creator>Zhong, Weizhang</creator><creator>Chi, Lina</creator><creator>Luo, Yijing</creator><creator>Zhang, Zhongzhi</creator><creator>Zhang, Zhenjia</creator><creator>Wu, Wei-Min</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>7QO</scope><scope>8FD</scope><scope>F1W</scope><scope>FR3</scope><scope>H95</scope><scope>H98</scope><scope>L.G</scope><scope>M7N</scope><scope>P64</scope><scope>7SU</scope><scope>7TB</scope><scope>C1K</scope><scope>KR7</scope></search><sort><creationdate>20130401</creationdate><title>Enhanced methane production from Taihu Lake blue algae by anaerobic co-digestion with corn straw in continuous feed digesters</title><author>Zhong, Weizhang ; Chi, Lina ; Luo, Yijing ; Zhang, Zhongzhi ; Zhang, Zhenjia ; Wu, Wei-Min</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c464t-73cacacd5427e03e76a9f17dcbe1689a642ec754afea683beff63cedb267e7cc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Acetates</topic><topic>Agronomy. 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Anaerobic digestion of Taihu blue algae was tested in laboratory scale, continuous feed digesters (hydraulic retention time 10days) at 35°C and various organic loading rates (OLR). The methane production and biomass digestion performed well at OLR below 4.00gVSL−1d−1 but deteriorated as OLR increased due to the increased ammonia concentration, causing inhibition mainly to acetate and propionate degradation. Supplementing corn straw as co-feedstock significantly improved the digestion performance. The optimal C/N ratio for the co-digestion was 20:1 at OLR of 6.00gVSL−1d−1. Methane yield of 234mL CH4 gVS−1 and methane productivity of 1404mL CH4 L−1d−1 were achieved with solid removal of 63%. Compared with the algae alone, the methane productivity was increased by 46% with less accumulation of ammonia and fatty acids. The reactor rate-limiting step was acetate and propionate degradation.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><pmid>23506978</pmid><doi>10.1016/j.biortech.2013.02.060</doi><tpages>7</tpages></addata></record> |
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| subjects | Acetates Agronomy. Soil science and plant productions Algae Anaerobic digestion Anaerobiosis Biodegradation, Environmental Biological and medical sciences Biological Oxygen Demand Analysis Biological treatment of sewage sludges and wastes Biomass Bioreactors - microbiology Biotechnology Biotechnology - instrumentation Biotechnology - methods C/N ratio Carbon - analysis Cellulase - metabolism China Corn straw Degradation Digesters Digestion Environment and pollution Fatty Acids, Volatile - analysis Food industries Fundamental and applied biological sciences. Psychology General agronomy. Plant production Industrial applications and implications. Economical aspects Lakes - microbiology Methane Methane - biosynthesis Microcystis - metabolism Nitrogen - analysis Oxygen - metabolism Productivity Straw Taihu Lake blue algae Time Factors Use and upgrading of agricultural and food by-products. Biotechnology Use of agricultural and forest wastes. Biomass use, bioconversion Waste Products - analysis Zea mays - chemistry |
| title | Enhanced methane production from Taihu Lake blue algae by anaerobic co-digestion with corn straw in continuous feed digesters |
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