Reductive dechlorination of chlorophenols in slurries of low-organic-carbon marine sediments and subsurface soils
The reductive dechlorination of 2,4- and 3,4-dichlorophenol (DCP) was studied in slurries of marine sediments and subsurface soils with dissolved organic carbon concentrations less than 1 ppm. Dechlorination was markedly greater in marine sediment slurries than in subsoil slurries, although similar...
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| Veröffentlicht in: | Applied microbiology and biotechnology 1997-06, Vol.47 (6), p.742-748 |
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| creator | Hale Boothe, D.D Rogers, J.E Wiegel, J |
| description | The reductive dechlorination of 2,4- and 3,4-dichlorophenol (DCP) was studied in slurries of marine sediments and subsurface soils with dissolved organic carbon concentrations less than 1 ppm. Dechlorination was markedly greater in marine sediment slurries than in subsoil slurries, although similar products were observed in each case. From 25% to 98% of the 2,4- and 3,4-pop (6.5 micromoles/l) added to most marine slurries was converted to 4- and 3-chlorophenol (CP) respectively, within 30 weeks. In contrast 2,4-DCP was dechlorinated to 4-CP ( > 90%) in only 1 of 24 replicate subsoil slurries after 32 weeks of incubation. Dechlorination was observed within 2 weeks when yeast extract was added to subsoil slurries; yeast extract additions also stimulated dechlorination in marine sediments but to a lesser extent. The intermediate monochlorophenol products did not persist in marine slurries but did persist in the subsoil slurries. It was concluded that the total organic carbon at a site is not always a good predictor of the site's ability to support dechlorination activity. |
| doi_str_mv | 10.1007/s002530051004 |
| format | Article |
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Dechlorination was markedly greater in marine sediment slurries than in subsoil slurries, although similar products were observed in each case. From 25% to 98% of the 2,4- and 3,4-pop (6.5 micromoles/l) added to most marine slurries was converted to 4- and 3-chlorophenol (CP) respectively, within 30 weeks. In contrast 2,4-DCP was dechlorinated to 4-CP ( > 90%) in only 1 of 24 replicate subsoil slurries after 32 weeks of incubation. Dechlorination was observed within 2 weeks when yeast extract was added to subsoil slurries; yeast extract additions also stimulated dechlorination in marine sediments but to a lesser extent. The intermediate monochlorophenol products did not persist in marine slurries but did persist in the subsoil slurries. It was concluded that the total organic carbon at a site is not always a good predictor of the site's ability to support dechlorination activity.</description><identifier>ISSN: 0175-7598</identifier><identifier>EISSN: 1432-0614</identifier><identifier>DOI: 10.1007/s002530051004</identifier><identifier>CODEN: AMBIDG</identifier><language>eng</language><publisher>Berlin: Springer</publisher><subject>2,4-dichlorophenol ; 3,4-dichlorophenol ; Analysis ; bacteria ; Biodegradation of pollutants ; Biological and medical sciences ; Biotechnology ; Carbon ; Chlorination ; Chlorophenol ; Dechlorination ; Dissolved organic carbon ; Environment and pollution ; Fundamental and applied biological sciences. Psychology ; Industrial applications and implications. Economical aspects ; Marine ; Marine microbiology ; Marine sediments ; Observations ; organochlorine compounds ; polluted soils ; Sediments ; Slurries ; Subsoils ; Yeasts</subject><ispartof>Applied microbiology and biotechnology, 1997-06, Vol.47 (6), p.742-748</ispartof><rights>1997 INIST-CNRS</rights><rights>COPYRIGHT 1997 Springer</rights><rights>Springer-Verlag Berlin Heidelberg 1997</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c542t-cd204579466201609474ef2cdaa7d6991bd15486915ca205e20601c8af39aba03</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2749287$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Hale Boothe, D.D</creatorcontrib><creatorcontrib>Rogers, J.E</creatorcontrib><creatorcontrib>Wiegel, J</creatorcontrib><title>Reductive dechlorination of chlorophenols in slurries of low-organic-carbon marine sediments and subsurface soils</title><title>Applied microbiology and biotechnology</title><description>The reductive dechlorination of 2,4- and 3,4-dichlorophenol (DCP) was studied in slurries of marine sediments and subsurface soils with dissolved organic carbon concentrations less than 1 ppm. Dechlorination was markedly greater in marine sediment slurries than in subsoil slurries, although similar products were observed in each case. From 25% to 98% of the 2,4- and 3,4-pop (6.5 micromoles/l) added to most marine slurries was converted to 4- and 3-chlorophenol (CP) respectively, within 30 weeks. In contrast 2,4-DCP was dechlorinated to 4-CP ( > 90%) in only 1 of 24 replicate subsoil slurries after 32 weeks of incubation. Dechlorination was observed within 2 weeks when yeast extract was added to subsoil slurries; yeast extract additions also stimulated dechlorination in marine sediments but to a lesser extent. The intermediate monochlorophenol products did not persist in marine slurries but did persist in the subsoil slurries. 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biotechnology</jtitle><date>1997-06-01</date><risdate>1997</risdate><volume>47</volume><issue>6</issue><spage>742</spage><epage>748</epage><pages>742-748</pages><issn>0175-7598</issn><eissn>1432-0614</eissn><coden>AMBIDG</coden><abstract>The reductive dechlorination of 2,4- and 3,4-dichlorophenol (DCP) was studied in slurries of marine sediments and subsurface soils with dissolved organic carbon concentrations less than 1 ppm. Dechlorination was markedly greater in marine sediment slurries than in subsoil slurries, although similar products were observed in each case. From 25% to 98% of the 2,4- and 3,4-pop (6.5 micromoles/l) added to most marine slurries was converted to 4- and 3-chlorophenol (CP) respectively, within 30 weeks. In contrast 2,4-DCP was dechlorinated to 4-CP ( > 90%) in only 1 of 24 replicate subsoil slurries after 32 weeks of incubation. Dechlorination was observed within 2 weeks when yeast extract was added to subsoil slurries; yeast extract additions also stimulated dechlorination in marine sediments but to a lesser extent. The intermediate monochlorophenol products did not persist in marine slurries but did persist in the subsoil slurries. It was concluded that the total organic carbon at a site is not always a good predictor of the site's ability to support dechlorination activity.</abstract><cop>Berlin</cop><pub>Springer</pub><doi>10.1007/s002530051004</doi><tpages>7</tpages></addata></record> |
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| identifier | ISSN: 0175-7598 |
| ispartof | Applied microbiology and biotechnology, 1997-06, Vol.47 (6), p.742-748 |
| issn | 0175-7598 1432-0614 |
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| subjects | 2,4-dichlorophenol 3,4-dichlorophenol Analysis bacteria Biodegradation of pollutants Biological and medical sciences Biotechnology Carbon Chlorination Chlorophenol Dechlorination Dissolved organic carbon Environment and pollution Fundamental and applied biological sciences. Psychology Industrial applications and implications. Economical aspects Marine Marine microbiology Marine sediments Observations organochlorine compounds polluted soils Sediments Slurries Subsoils Yeasts |
| title | Reductive dechlorination of chlorophenols in slurries of low-organic-carbon marine sediments and subsurface soils |
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