Biotransformation of Trace Organic Contaminants in Open-Water Unit Process Treatment Wetlands
The bottoms of shallow, open-water wetland cells are rapidly colonized by a biomat consisting of an assemblage of photosynthetic and heterotrophic microorganisms. To assess the contribution of biotransformation in this biomat to the overall attenuation of trace organic contaminants, transformation r...
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| Veröffentlicht in: | Environmental science & technology 2014-05, Vol.48 (9), p.5136-5144 |
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| creator | Jasper, Justin T Jones, Zackary L Sharp, Jonathan O Sedlak, David L |
| description | The bottoms of shallow, open-water wetland cells are rapidly colonized by a biomat consisting of an assemblage of photosynthetic and heterotrophic microorganisms. To assess the contribution of biotransformation in this biomat to the overall attenuation of trace organic contaminants, transformation rates of test compounds measured in microcosms were compared with attenuation rates measured in a pilot-scale system. The biomat in the pilot-scale system was composed of diatoms (Staurosira construens) and a bacterial community dominated by β- and γ-Proteobacteria. Biotransformation was the dominant removal mechanism in the pilot-scale system for atenolol, metoprolol, and trimethoprim, while sulfamethoxazole and propranolol were attenuated mainly via photolysis. In microcosm experiments, biotransformation rates increased for metoprolol and propranolol when algal photosynthesis was supported by irradiation with visible light. Biotransformation rates increased for trimethoprim and sulfamethoxazole in the dark, when microbial respiration depleted dissolved oxygen concentrations within the biomat. During summer, atenolol, metoprolol, and propranolol were rapidly attenuated in the pilot-scale system (t 1/2 < 0.5 d), trimethoprim and sulfamethoxazole were transformed more slowly (t 1/2 ≈ 1.5–2 d), and carbamazepine was recalcitrant. The combination of biotransformation and photolysis resulted in overall transformation rates that were 10 to 100 times faster than those previously measured in vegetated wetlands, allowing for over 90% attenuation of all compounds studied except carbamazepine within an area similar to that typical of existing full-scale vegetated treatment wetlands. |
| doi_str_mv | 10.1021/es500351e |
| format | Article |
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To assess the contribution of biotransformation in this biomat to the overall attenuation of trace organic contaminants, transformation rates of test compounds measured in microcosms were compared with attenuation rates measured in a pilot-scale system. The biomat in the pilot-scale system was composed of diatoms (Staurosira construens) and a bacterial community dominated by β- and γ-Proteobacteria. Biotransformation was the dominant removal mechanism in the pilot-scale system for atenolol, metoprolol, and trimethoprim, while sulfamethoxazole and propranolol were attenuated mainly via photolysis. In microcosm experiments, biotransformation rates increased for metoprolol and propranolol when algal photosynthesis was supported by irradiation with visible light. Biotransformation rates increased for trimethoprim and sulfamethoxazole in the dark, when microbial respiration depleted dissolved oxygen concentrations within the biomat. During summer, atenolol, metoprolol, and propranolol were rapidly attenuated in the pilot-scale system (t 1/2 < 0.5 d), trimethoprim and sulfamethoxazole were transformed more slowly (t 1/2 ≈ 1.5–2 d), and carbamazepine was recalcitrant. The combination of biotransformation and photolysis resulted in overall transformation rates that were 10 to 100 times faster than those previously measured in vegetated wetlands, allowing for over 90% attenuation of all compounds studied except carbamazepine within an area similar to that typical of existing full-scale vegetated treatment wetlands.</description><identifier>ISSN: 0013-936X</identifier><identifier>EISSN: 1520-5851</identifier><identifier>DOI: 10.1021/es500351e</identifier><identifier>PMID: 24734963</identifier><identifier>CODEN: ESTHAG</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Algae ; Applied sciences ; Bacillariophyceae ; Biological and medical sciences ; Biological treatment of waters ; Biotechnology ; Biotransformation ; Diatoms - classification ; Diatoms - genetics ; Diatoms - metabolism ; Environment and pollution ; Exact sciences and technology ; Fundamental and applied biological sciences. Psychology ; Industrial applications and implications. Economical aspects ; Microorganisms ; Organic Chemicals - chemistry ; Organic Chemicals - metabolism ; Organic contaminants ; Other wastewaters ; Pharmaceutical Preparations - chemistry ; Pharmaceutical Preparations - metabolism ; Photosynthesis ; Phylogeny ; Pilot Projects ; Pollution ; Proteobacteria - classification ; Proteobacteria - genetics ; Proteobacteria - metabolism ; Staurosira construens ; Trace elements ; Wastewaters ; Water Pollutants, Chemical - chemistry ; Water Pollutants, Chemical - metabolism ; Water treatment ; Water treatment and pollution ; Wetlands</subject><ispartof>Environmental science & technology, 2014-05, Vol.48 (9), p.5136-5144</ispartof><rights>2015 INIST-CNRS</rights><rights>Copyright American Chemical Society May 6, 2014</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a406t-1c857e420270fc2f0d6e3f21943345354c0d096cd3533b5c3132d4ad09b03c1d3</citedby><cites>FETCH-LOGICAL-a406t-1c857e420270fc2f0d6e3f21943345354c0d096cd3533b5c3132d4ad09b03c1d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/es500351e$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/es500351e$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>315,781,785,2766,27081,27929,27930,56743,56793</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=28517578$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/24734963$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Jasper, Justin T</creatorcontrib><creatorcontrib>Jones, Zackary L</creatorcontrib><creatorcontrib>Sharp, Jonathan O</creatorcontrib><creatorcontrib>Sedlak, David L</creatorcontrib><title>Biotransformation of Trace Organic Contaminants in Open-Water Unit Process Treatment Wetlands</title><title>Environmental science & technology</title><addtitle>Environ. Sci. Technol</addtitle><description>The bottoms of shallow, open-water wetland cells are rapidly colonized by a biomat consisting of an assemblage of photosynthetic and heterotrophic microorganisms. To assess the contribution of biotransformation in this biomat to the overall attenuation of trace organic contaminants, transformation rates of test compounds measured in microcosms were compared with attenuation rates measured in a pilot-scale system. The biomat in the pilot-scale system was composed of diatoms (Staurosira construens) and a bacterial community dominated by β- and γ-Proteobacteria. Biotransformation was the dominant removal mechanism in the pilot-scale system for atenolol, metoprolol, and trimethoprim, while sulfamethoxazole and propranolol were attenuated mainly via photolysis. In microcosm experiments, biotransformation rates increased for metoprolol and propranolol when algal photosynthesis was supported by irradiation with visible light. Biotransformation rates increased for trimethoprim and sulfamethoxazole in the dark, when microbial respiration depleted dissolved oxygen concentrations within the biomat. During summer, atenolol, metoprolol, and propranolol were rapidly attenuated in the pilot-scale system (t 1/2 < 0.5 d), trimethoprim and sulfamethoxazole were transformed more slowly (t 1/2 ≈ 1.5–2 d), and carbamazepine was recalcitrant. 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Economical aspects</subject><subject>Microorganisms</subject><subject>Organic Chemicals - chemistry</subject><subject>Organic Chemicals - metabolism</subject><subject>Organic contaminants</subject><subject>Other wastewaters</subject><subject>Pharmaceutical Preparations - chemistry</subject><subject>Pharmaceutical Preparations - metabolism</subject><subject>Photosynthesis</subject><subject>Phylogeny</subject><subject>Pilot Projects</subject><subject>Pollution</subject><subject>Proteobacteria - classification</subject><subject>Proteobacteria - genetics</subject><subject>Proteobacteria - metabolism</subject><subject>Staurosira construens</subject><subject>Trace elements</subject><subject>Wastewaters</subject><subject>Water Pollutants, Chemical - chemistry</subject><subject>Water Pollutants, Chemical - metabolism</subject><subject>Water treatment</subject><subject>Water treatment and pollution</subject><subject>Wetlands</subject><issn>0013-936X</issn><issn>1520-5851</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqN0c9rFDEUB_Agit2uHvwHJCCCHkZf8pKZnaMuVoXCemipFxmymTeSspOsedmD_70pXVvRi6dA-OT9yFeIZwreKNDqLbEFQKvogVgoq6GxK6seigWAwqbH9uuJOGW-BgCNsHosTrTp0PQtLsS39yGV7CJPKc-uhBRlmuRFdp7kJn93MXi5TrG4OUQXC8sQ5WZPsblyhbK8jKHILzl5Yq6vyJWZYpFXVHYujvxEPJrcjunp8VyKy7MPF-tPzfnm4-f1u_PGGWhLo_zKdmQ06A4mrycYW8JJq94gGovWeBihb_2IFnFrPSrUo3H1bgvo1YhL8eq27j6nHwfiMsyBPe3qEJQOPCjb1q_QnTb_QWtfBbZrK33xF71OhxzrIjfK9Aq7OtBSvL5VPifmTNOwz2F2-eegYLiJZ7iLp9rnx4qH7UzjnfydRwUvj8Cxd7upJuMD37uaa2e71b1znv-Y6p-GvwBvXKER</recordid><startdate>20140506</startdate><enddate>20140506</enddate><creator>Jasper, Justin T</creator><creator>Jones, Zackary L</creator><creator>Sharp, Jonathan O</creator><creator>Sedlak, David L</creator><general>American Chemical Society</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>7QO</scope><scope>7ST</scope><scope>7T7</scope><scope>7U7</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>P64</scope><scope>SOI</scope><scope>7X8</scope><scope>7QH</scope><scope>7TV</scope><scope>7UA</scope><scope>F1W</scope><scope>H97</scope><scope>L.G</scope><scope>M7N</scope></search><sort><creationdate>20140506</creationdate><title>Biotransformation of Trace Organic Contaminants in Open-Water Unit Process Treatment Wetlands</title><author>Jasper, Justin T ; Jones, Zackary L ; Sharp, Jonathan O ; Sedlak, David L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a406t-1c857e420270fc2f0d6e3f21943345354c0d096cd3533b5c3132d4ad09b03c1d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>Algae</topic><topic>Applied sciences</topic><topic>Bacillariophyceae</topic><topic>Biological and medical sciences</topic><topic>Biological treatment of waters</topic><topic>Biotechnology</topic><topic>Biotransformation</topic><topic>Diatoms - classification</topic><topic>Diatoms - genetics</topic><topic>Diatoms - metabolism</topic><topic>Environment and pollution</topic><topic>Exact sciences and technology</topic><topic>Fundamental and applied biological sciences. 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Sci. Technol</addtitle><date>2014-05-06</date><risdate>2014</risdate><volume>48</volume><issue>9</issue><spage>5136</spage><epage>5144</epage><pages>5136-5144</pages><issn>0013-936X</issn><eissn>1520-5851</eissn><coden>ESTHAG</coden><abstract>The bottoms of shallow, open-water wetland cells are rapidly colonized by a biomat consisting of an assemblage of photosynthetic and heterotrophic microorganisms. To assess the contribution of biotransformation in this biomat to the overall attenuation of trace organic contaminants, transformation rates of test compounds measured in microcosms were compared with attenuation rates measured in a pilot-scale system. The biomat in the pilot-scale system was composed of diatoms (Staurosira construens) and a bacterial community dominated by β- and γ-Proteobacteria. Biotransformation was the dominant removal mechanism in the pilot-scale system for atenolol, metoprolol, and trimethoprim, while sulfamethoxazole and propranolol were attenuated mainly via photolysis. In microcosm experiments, biotransformation rates increased for metoprolol and propranolol when algal photosynthesis was supported by irradiation with visible light. Biotransformation rates increased for trimethoprim and sulfamethoxazole in the dark, when microbial respiration depleted dissolved oxygen concentrations within the biomat. During summer, atenolol, metoprolol, and propranolol were rapidly attenuated in the pilot-scale system (t 1/2 < 0.5 d), trimethoprim and sulfamethoxazole were transformed more slowly (t 1/2 ≈ 1.5–2 d), and carbamazepine was recalcitrant. The combination of biotransformation and photolysis resulted in overall transformation rates that were 10 to 100 times faster than those previously measured in vegetated wetlands, allowing for over 90% attenuation of all compounds studied except carbamazepine within an area similar to that typical of existing full-scale vegetated treatment wetlands.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>24734963</pmid><doi>10.1021/es500351e</doi><tpages>9</tpages></addata></record> |
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| subjects | Algae Applied sciences Bacillariophyceae Biological and medical sciences Biological treatment of waters Biotechnology Biotransformation Diatoms - classification Diatoms - genetics Diatoms - metabolism Environment and pollution Exact sciences and technology Fundamental and applied biological sciences. Psychology Industrial applications and implications. Economical aspects Microorganisms Organic Chemicals - chemistry Organic Chemicals - metabolism Organic contaminants Other wastewaters Pharmaceutical Preparations - chemistry Pharmaceutical Preparations - metabolism Photosynthesis Phylogeny Pilot Projects Pollution Proteobacteria - classification Proteobacteria - genetics Proteobacteria - metabolism Staurosira construens Trace elements Wastewaters Water Pollutants, Chemical - chemistry Water Pollutants, Chemical - metabolism Water treatment Water treatment and pollution Wetlands |
| title | Biotransformation of Trace Organic Contaminants in Open-Water Unit Process Treatment Wetlands |
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