Effect of solids retention time on antibiotics removal performance and microbial communities in an A/O-MBR process
► We compared performance and microbial communities at different SRTs in the A/O-MBR. ► Betaproteobacteria and Gammaproteobacteria were the dominant species. ► SRT gave a significant influence on the nitrifying bacteria gene contents. ► Sulfa antibiotics resistance gene present a decreasing tendency...
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creator | Xia, Siqing Jia, Renyong Feng, Fan Xie, Kang Li, Haixiang Jing, Danfeng Xu, Xiaotian |
description | ► We compared performance and microbial communities at different SRTs in the A/O-MBR. ►
Betaproteobacteria and
Gammaproteobacteria were the dominant species. ► SRT gave a significant influence on the nitrifying bacteria gene contents. ► Sulfa antibiotics resistance gene present a decreasing tendency with SRT decreasing. ► Longer SRT was the suitable operational condition for antibiotics removal.
The effect of solids retention time on reactor performance and microbial community composition in anoxic/aerobic membrane bioreactors (A/O-MBR) were investigated in this study. Experimental results showed high removal efficiencies of conventional pollutants. Antibiotics removal efficiencies were obviously affected by SRT changes. Longer SRT (above 30
days) was proved to be suitable operational condition for antibiotics removal. Denaturing gradient gel electrophoresis (DGGE) and clone library analysis revealed that bacteria belong to
Betaproteobacteria and
Gammaproteobacteria were the dominant species during wastewater treatment and antibiotics removal. SRT significantly influenced the relative numbers of nitrifying bacteria. Removal efficiency of total nitrogen (TN) decreased when SRT was 3
days, because nitrogen loading exceeded the denitrification ability of the reactors. Unlike
tet C and
tet E genes, sulfa antibiotics resistance gene presented a decreasing tendency with the decrease of SRT, and finally affected sulfa antibiotics removal efficiencies. |
doi_str_mv | 10.1016/j.biortech.2011.11.112 |
format | Article |
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Betaproteobacteria and
Gammaproteobacteria were the dominant species. ► SRT gave a significant influence on the nitrifying bacteria gene contents. ► Sulfa antibiotics resistance gene present a decreasing tendency with SRT decreasing. ► Longer SRT was the suitable operational condition for antibiotics removal.
The effect of solids retention time on reactor performance and microbial community composition in anoxic/aerobic membrane bioreactors (A/O-MBR) were investigated in this study. Experimental results showed high removal efficiencies of conventional pollutants. Antibiotics removal efficiencies were obviously affected by SRT changes. Longer SRT (above 30
days) was proved to be suitable operational condition for antibiotics removal. Denaturing gradient gel electrophoresis (DGGE) and clone library analysis revealed that bacteria belong to
Betaproteobacteria and
Gammaproteobacteria were the dominant species during wastewater treatment and antibiotics removal. SRT significantly influenced the relative numbers of nitrifying bacteria. Removal efficiency of total nitrogen (TN) decreased when SRT was 3
days, because nitrogen loading exceeded the denitrification ability of the reactors. Unlike
tet C and
tet E genes, sulfa antibiotics resistance gene presented a decreasing tendency with the decrease of SRT, and finally affected sulfa antibiotics removal efficiencies.</description><identifier>ISSN: 0960-8524</identifier><identifier>EISSN: 1873-2976</identifier><identifier>DOI: 10.1016/j.biortech.2011.11.112</identifier><identifier>PMID: 22197076</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><subject>Aerobiosis ; Anaerobiosis ; Anti-Bacterial Agents - isolation & purification ; antibiotic resistance ; Antibiotics ; bacteria ; Bacteria - genetics ; Bacteria - metabolism ; beta-Proteobacteria ; Betaproteobacteria - genetics ; Biodegradation, Environmental ; bioreactors ; Bioreactors - microbiology ; clones ; community structure ; Denaturing Gradient Gel Electrophoresis ; Denitrification ; Drug Resistance, Bacterial - genetics ; Environmental Restoration and Remediation - instrumentation ; Environmental Restoration and Remediation - methods ; gamma-Proteobacteria ; Gene Dosage - genetics ; Gene Library ; genes ; Membrane bioreactor ; Membranes, Artificial ; microbial communities ; Microbial community ; Molecular Sequence Data ; Nitrification ; nitrogen ; nitrogen content ; Phylogeny ; pollutants ; Real-Time Polymerase Chain Reaction ; Removal performance ; RNA, Ribosomal, 16S - genetics ; Sewage - microbiology ; Solids retention time ; Time Factors ; wastewater treatment ; Water Pollutants, Chemical</subject><ispartof>Bioresource technology, 2012-02, Vol.106, p.36-43</ispartof><rights>2011 Elsevier Ltd</rights><rights>Copyright © 2011 Elsevier Ltd. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c542t-643486e1e4461bf6f0a86a2b6396db98c0f476d89e8ca4f50a6158cbd93bad573</citedby><cites>FETCH-LOGICAL-c542t-643486e1e4461bf6f0a86a2b6396db98c0f476d89e8ca4f50a6158cbd93bad573</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.2011.11.112$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22197076$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Xia, Siqing</creatorcontrib><creatorcontrib>Jia, Renyong</creatorcontrib><creatorcontrib>Feng, Fan</creatorcontrib><creatorcontrib>Xie, Kang</creatorcontrib><creatorcontrib>Li, Haixiang</creatorcontrib><creatorcontrib>Jing, Danfeng</creatorcontrib><creatorcontrib>Xu, Xiaotian</creatorcontrib><title>Effect of solids retention time on antibiotics removal performance and microbial communities in an A/O-MBR process</title><title>Bioresource technology</title><addtitle>Bioresour Technol</addtitle><description>► We compared performance and microbial communities at different SRTs in the A/O-MBR. ►
Betaproteobacteria and
Gammaproteobacteria were the dominant species. ► SRT gave a significant influence on the nitrifying bacteria gene contents. ► Sulfa antibiotics resistance gene present a decreasing tendency with SRT decreasing. ► Longer SRT was the suitable operational condition for antibiotics removal.
The effect of solids retention time on reactor performance and microbial community composition in anoxic/aerobic membrane bioreactors (A/O-MBR) were investigated in this study. Experimental results showed high removal efficiencies of conventional pollutants. Antibiotics removal efficiencies were obviously affected by SRT changes. Longer SRT (above 30
days) was proved to be suitable operational condition for antibiotics removal. Denaturing gradient gel electrophoresis (DGGE) and clone library analysis revealed that bacteria belong to
Betaproteobacteria and
Gammaproteobacteria were the dominant species during wastewater treatment and antibiotics removal. SRT significantly influenced the relative numbers of nitrifying bacteria. Removal efficiency of total nitrogen (TN) decreased when SRT was 3
days, because nitrogen loading exceeded the denitrification ability of the reactors. Unlike
tet C and
tet E genes, sulfa antibiotics resistance gene presented a decreasing tendency with the decrease of SRT, and finally affected sulfa antibiotics removal efficiencies.</description><subject>Aerobiosis</subject><subject>Anaerobiosis</subject><subject>Anti-Bacterial Agents - isolation & purification</subject><subject>antibiotic resistance</subject><subject>Antibiotics</subject><subject>bacteria</subject><subject>Bacteria - genetics</subject><subject>Bacteria - metabolism</subject><subject>beta-Proteobacteria</subject><subject>Betaproteobacteria - genetics</subject><subject>Biodegradation, Environmental</subject><subject>bioreactors</subject><subject>Bioreactors - microbiology</subject><subject>clones</subject><subject>community structure</subject><subject>Denaturing Gradient Gel Electrophoresis</subject><subject>Denitrification</subject><subject>Drug Resistance, Bacterial - genetics</subject><subject>Environmental Restoration and Remediation - instrumentation</subject><subject>Environmental Restoration and Remediation - methods</subject><subject>gamma-Proteobacteria</subject><subject>Gene Dosage - genetics</subject><subject>Gene Library</subject><subject>genes</subject><subject>Membrane bioreactor</subject><subject>Membranes, Artificial</subject><subject>microbial communities</subject><subject>Microbial community</subject><subject>Molecular Sequence Data</subject><subject>Nitrification</subject><subject>nitrogen</subject><subject>nitrogen content</subject><subject>Phylogeny</subject><subject>pollutants</subject><subject>Real-Time Polymerase Chain Reaction</subject><subject>Removal performance</subject><subject>RNA, Ribosomal, 16S - genetics</subject><subject>Sewage - microbiology</subject><subject>Solids retention time</subject><subject>Time Factors</subject><subject>wastewater treatment</subject><subject>Water Pollutants, Chemical</subject><issn>0960-8524</issn><issn>1873-2976</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFUVtvFCEUJkZj1-pfqLz5NNsDAwzzZm3qJalpovaZMMxB2cwMK7BN-u9luq2vTU5yQr4b8BFyxmDLgKnz3XYIMRV0f7YcGNs-DH9BNkx3bcP7Tr0kG-gVNFpycULe5LwDgJZ1_DU54Zz1HXRqQ9KV9-gKjZ7mOIUx04QFlxLiQkuYkdZt67GmleBWdI53dqJ7TD6m2S4OKz7SObgUh1ARF-f5sIQSMNOwiunF-U3z_dMPuk_RYc5vyStvp4zvHvcpuf189evya3N98-Xb5cV146TgpVGiFVohQyEUG7zyYLWyfFBtr8ah1w686NSoe9TOCi_BKia1G8a-Hewou_aUfDj61ty_B8zFzCE7nCa7YDxk03PQoJmUzzOZBMFkB5Wpjsz62pwTerNPYbbp3jAwazFmZ56KMWsx5mF4FZ49RhyGGcf_sqcmKuH9keBtNPZ3Ctnc_qwOAqprC-2a_fHIwPppdwGTyS5gLWAMqVZoxhieu8U_nyasNA</recordid><startdate>20120201</startdate><enddate>20120201</enddate><creator>Xia, Siqing</creator><creator>Jia, Renyong</creator><creator>Feng, Fan</creator><creator>Xie, Kang</creator><creator>Li, Haixiang</creator><creator>Jing, Danfeng</creator><creator>Xu, Xiaotian</creator><general>Elsevier Ltd</general><scope>FBQ</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>7T7</scope><scope>7TV</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope></search><sort><creationdate>20120201</creationdate><title>Effect of solids retention time on antibiotics removal performance and microbial communities in an A/O-MBR process</title><author>Xia, Siqing ; Jia, Renyong ; Feng, Fan ; Xie, Kang ; Li, Haixiang ; Jing, Danfeng ; Xu, Xiaotian</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c542t-643486e1e4461bf6f0a86a2b6396db98c0f476d89e8ca4f50a6158cbd93bad573</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Aerobiosis</topic><topic>Anaerobiosis</topic><topic>Anti-Bacterial Agents - isolation & purification</topic><topic>antibiotic resistance</topic><topic>Antibiotics</topic><topic>bacteria</topic><topic>Bacteria - genetics</topic><topic>Bacteria - metabolism</topic><topic>beta-Proteobacteria</topic><topic>Betaproteobacteria - genetics</topic><topic>Biodegradation, Environmental</topic><topic>bioreactors</topic><topic>Bioreactors - microbiology</topic><topic>clones</topic><topic>community structure</topic><topic>Denaturing Gradient Gel Electrophoresis</topic><topic>Denitrification</topic><topic>Drug Resistance, Bacterial - genetics</topic><topic>Environmental Restoration and Remediation - instrumentation</topic><topic>Environmental Restoration and Remediation - methods</topic><topic>gamma-Proteobacteria</topic><topic>Gene Dosage - genetics</topic><topic>Gene Library</topic><topic>genes</topic><topic>Membrane bioreactor</topic><topic>Membranes, Artificial</topic><topic>microbial communities</topic><topic>Microbial community</topic><topic>Molecular Sequence Data</topic><topic>Nitrification</topic><topic>nitrogen</topic><topic>nitrogen content</topic><topic>Phylogeny</topic><topic>pollutants</topic><topic>Real-Time Polymerase Chain Reaction</topic><topic>Removal performance</topic><topic>RNA, Ribosomal, 16S - genetics</topic><topic>Sewage - microbiology</topic><topic>Solids retention time</topic><topic>Time Factors</topic><topic>wastewater treatment</topic><topic>Water Pollutants, Chemical</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xia, Siqing</creatorcontrib><creatorcontrib>Jia, Renyong</creatorcontrib><creatorcontrib>Feng, Fan</creatorcontrib><creatorcontrib>Xie, Kang</creatorcontrib><creatorcontrib>Li, Haixiang</creatorcontrib><creatorcontrib>Jing, Danfeng</creatorcontrib><creatorcontrib>Xu, Xiaotian</creatorcontrib><collection>AGRIS</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>Biotechnology Research Abstracts</collection><collection>Industrial and Applied Microbiology Abstracts (Microbiology A)</collection><collection>Pollution Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><jtitle>Bioresource technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xia, Siqing</au><au>Jia, Renyong</au><au>Feng, Fan</au><au>Xie, Kang</au><au>Li, Haixiang</au><au>Jing, Danfeng</au><au>Xu, Xiaotian</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of solids retention time on antibiotics removal performance and microbial communities in an A/O-MBR process</atitle><jtitle>Bioresource technology</jtitle><addtitle>Bioresour Technol</addtitle><date>2012-02-01</date><risdate>2012</risdate><volume>106</volume><spage>36</spage><epage>43</epage><pages>36-43</pages><issn>0960-8524</issn><eissn>1873-2976</eissn><abstract>► We compared performance and microbial communities at different SRTs in the A/O-MBR. ►
Betaproteobacteria and
Gammaproteobacteria were the dominant species. ► SRT gave a significant influence on the nitrifying bacteria gene contents. ► Sulfa antibiotics resistance gene present a decreasing tendency with SRT decreasing. ► Longer SRT was the suitable operational condition for antibiotics removal.
The effect of solids retention time on reactor performance and microbial community composition in anoxic/aerobic membrane bioreactors (A/O-MBR) were investigated in this study. Experimental results showed high removal efficiencies of conventional pollutants. Antibiotics removal efficiencies were obviously affected by SRT changes. Longer SRT (above 30
days) was proved to be suitable operational condition for antibiotics removal. Denaturing gradient gel electrophoresis (DGGE) and clone library analysis revealed that bacteria belong to
Betaproteobacteria and
Gammaproteobacteria were the dominant species during wastewater treatment and antibiotics removal. SRT significantly influenced the relative numbers of nitrifying bacteria. Removal efficiency of total nitrogen (TN) decreased when SRT was 3
days, because nitrogen loading exceeded the denitrification ability of the reactors. Unlike
tet C and
tet E genes, sulfa antibiotics resistance gene presented a decreasing tendency with the decrease of SRT, and finally affected sulfa antibiotics removal efficiencies.</abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>22197076</pmid><doi>10.1016/j.biortech.2011.11.112</doi><tpages>8</tpages></addata></record> |
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subjects | Aerobiosis Anaerobiosis Anti-Bacterial Agents - isolation & purification antibiotic resistance Antibiotics bacteria Bacteria - genetics Bacteria - metabolism beta-Proteobacteria Betaproteobacteria - genetics Biodegradation, Environmental bioreactors Bioreactors - microbiology clones community structure Denaturing Gradient Gel Electrophoresis Denitrification Drug Resistance, Bacterial - genetics Environmental Restoration and Remediation - instrumentation Environmental Restoration and Remediation - methods gamma-Proteobacteria Gene Dosage - genetics Gene Library genes Membrane bioreactor Membranes, Artificial microbial communities Microbial community Molecular Sequence Data Nitrification nitrogen nitrogen content Phylogeny pollutants Real-Time Polymerase Chain Reaction Removal performance RNA, Ribosomal, 16S - genetics Sewage - microbiology Solids retention time Time Factors wastewater treatment Water Pollutants, Chemical |
title | Effect of solids retention time on antibiotics removal performance and microbial communities in an A/O-MBR process |
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