Bioremediation Process for Sediments Contaminated by Heavy Metals: Feasibility Study on a Pilot Scale
The core stages of a sediment remediation processthe conditioning of dredged sludge by plants and the solid-bed leaching of heavy metals using microbially produced sulfuric acidwere tested on a pilot scale using a highly polluted river sediment. Conditioning was performed in 50 m3 basins at sludge...
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| Veröffentlicht in: | Environmental science & technology 2004-03, Vol.38 (5), p.1582-1588 |
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| creator | Seidel, H Löser, C Zehnsdorf, A Hoffmann, P Schmerold, R |
| description | The core stages of a sediment remediation processthe conditioning of dredged sludge by plants and the solid-bed leaching of heavy metals using microbially produced sulfuric acidwere tested on a pilot scale using a highly polluted river sediment. Conditioning was performed in 50 m3 basins at sludge depths of 1.8 m. During one vegetation period the anoxic sludge turned into a soil-like oxic material and became very permeable to water. Reed canary grass (Phalaris arundinacea) was found to be best suited for conditioning. Bioleaching was carried out in an aerated solid-bed reactor of 2000 L working volume using oxic soil-like sediment supplemented with 2% sulfur. When applying conditioned sediment, the oxidation of easily degradable organic matter by heterotrophic microbes increased the temperature up to 50°C in the early leaching phase, which in turn temporarily inhibited the sulfur-oxidizing bacteria. Nevertheless, most of the metal contaminants were leached within 21 days. Zn, Cd, Mn, Co, and Ni were removed by 61−81%, Cu was reduced by 21%, while Cr and Pb were nearly immobile. A cost-effectiveness assessment of the remediation process indicates it to be a suitable treatment for restoring polluted sediments for beneficial use. |
| doi_str_mv | 10.1021/es030075d |
| format | Article |
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Conditioning was performed in 50 m3 basins at sludge depths of 1.8 m. During one vegetation period the anoxic sludge turned into a soil-like oxic material and became very permeable to water. Reed canary grass (Phalaris arundinacea) was found to be best suited for conditioning. Bioleaching was carried out in an aerated solid-bed reactor of 2000 L working volume using oxic soil-like sediment supplemented with 2% sulfur. When applying conditioned sediment, the oxidation of easily degradable organic matter by heterotrophic microbes increased the temperature up to 50°C in the early leaching phase, which in turn temporarily inhibited the sulfur-oxidizing bacteria. Nevertheless, most of the metal contaminants were leached within 21 days. Zn, Cd, Mn, Co, and Ni were removed by 61−81%, Cu was reduced by 21%, while Cr and Pb were nearly immobile. A cost-effectiveness assessment of the remediation process indicates it to be a suitable treatment for restoring polluted sediments for beneficial use.</description><identifier>ISSN: 0013-936X</identifier><identifier>EISSN: 1520-5851</identifier><identifier>DOI: 10.1021/es030075d</identifier><identifier>PMID: 15046363</identifier><identifier>CODEN: ESTHAG</identifier><language>eng</language><publisher>Washington, DC: American Chemical Society</publisher><subject>Applied sciences ; Biodegradation, Environmental ; Biological and medical sciences ; Biological treatment of sewage sludges and wastes ; Bioreactors ; Bioremediation ; Biotechnology ; Contaminated sediments ; Cost analysis ; Cost-Benefit Analysis ; Earth sciences ; Earth, ocean, space ; Engineering and environment geology. Geothermics ; Environment and pollution ; Exact sciences and technology ; Feasibility Studies ; Fundamental and applied biological sciences. Psychology ; Geologic Sediments - chemistry ; Heavy metal content ; Heavy metals ; Industrial applications and implications. Economical aspects ; Leaching ; Metals, Heavy - isolation & purification ; Metals, Heavy - metabolism ; Other wastes and particular components of wastes ; Phalaris - chemistry ; Phalaris - growth & development ; Phalaris arundinacea ; Pollution ; Pollution control costs ; Pollution, environment geology ; Rivers ; Sediments ; Sludge ; Sulfur ; Sulfuric Acids - chemistry ; Temperature ; Wastes ; Water Pollutants - economics ; Water Pollutants - isolation & purification ; Water Pollutants - metabolism</subject><ispartof>Environmental science & technology, 2004-03, Vol.38 (5), p.1582-1588</ispartof><rights>Copyright © 2004 American Chemical Society</rights><rights>2004 INIST-CNRS</rights><rights>Copyright American Chemical Society Mar 1, 2004</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a507t-8f207f38ed5c54d14af6f417ac43737329b2fd38f7a889a0eee872447129a9a23</citedby><cites>FETCH-LOGICAL-a507t-8f207f38ed5c54d14af6f417ac43737329b2fd38f7a889a0eee872447129a9a23</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/es030075d$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/es030075d$$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=15526947$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/15046363$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Seidel, H</creatorcontrib><creatorcontrib>Löser, C</creatorcontrib><creatorcontrib>Zehnsdorf, A</creatorcontrib><creatorcontrib>Hoffmann, P</creatorcontrib><creatorcontrib>Schmerold, R</creatorcontrib><title>Bioremediation Process for Sediments Contaminated by Heavy Metals: Feasibility Study on a Pilot Scale</title><title>Environmental science & technology</title><addtitle>Environ. Sci. Technol</addtitle><description>The core stages of a sediment remediation processthe conditioning of dredged sludge by plants and the solid-bed leaching of heavy metals using microbially produced sulfuric acidwere tested on a pilot scale using a highly polluted river sediment. Conditioning was performed in 50 m3 basins at sludge depths of 1.8 m. During one vegetation period the anoxic sludge turned into a soil-like oxic material and became very permeable to water. Reed canary grass (Phalaris arundinacea) was found to be best suited for conditioning. Bioleaching was carried out in an aerated solid-bed reactor of 2000 L working volume using oxic soil-like sediment supplemented with 2% sulfur. When applying conditioned sediment, the oxidation of easily degradable organic matter by heterotrophic microbes increased the temperature up to 50°C in the early leaching phase, which in turn temporarily inhibited the sulfur-oxidizing bacteria. Nevertheless, most of the metal contaminants were leached within 21 days. Zn, Cd, Mn, Co, and Ni were removed by 61−81%, Cu was reduced by 21%, while Cr and Pb were nearly immobile. A cost-effectiveness assessment of the remediation process indicates it to be a suitable treatment for restoring polluted sediments for beneficial use.</description><subject>Applied sciences</subject><subject>Biodegradation, Environmental</subject><subject>Biological and medical sciences</subject><subject>Biological treatment of sewage sludges and wastes</subject><subject>Bioreactors</subject><subject>Bioremediation</subject><subject>Biotechnology</subject><subject>Contaminated sediments</subject><subject>Cost analysis</subject><subject>Cost-Benefit Analysis</subject><subject>Earth sciences</subject><subject>Earth, ocean, space</subject><subject>Engineering and environment geology. 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Sci. Technol</addtitle><date>2004-03-01</date><risdate>2004</risdate><volume>38</volume><issue>5</issue><spage>1582</spage><epage>1588</epage><pages>1582-1588</pages><issn>0013-936X</issn><eissn>1520-5851</eissn><coden>ESTHAG</coden><abstract>The core stages of a sediment remediation processthe conditioning of dredged sludge by plants and the solid-bed leaching of heavy metals using microbially produced sulfuric acidwere tested on a pilot scale using a highly polluted river sediment. Conditioning was performed in 50 m3 basins at sludge depths of 1.8 m. During one vegetation period the anoxic sludge turned into a soil-like oxic material and became very permeable to water. Reed canary grass (Phalaris arundinacea) was found to be best suited for conditioning. Bioleaching was carried out in an aerated solid-bed reactor of 2000 L working volume using oxic soil-like sediment supplemented with 2% sulfur. When applying conditioned sediment, the oxidation of easily degradable organic matter by heterotrophic microbes increased the temperature up to 50°C in the early leaching phase, which in turn temporarily inhibited the sulfur-oxidizing bacteria. Nevertheless, most of the metal contaminants were leached within 21 days. Zn, Cd, Mn, Co, and Ni were removed by 61−81%, Cu was reduced by 21%, while Cr and Pb were nearly immobile. A cost-effectiveness assessment of the remediation process indicates it to be a suitable treatment for restoring polluted sediments for beneficial use.</abstract><cop>Washington, DC</cop><pub>American Chemical Society</pub><pmid>15046363</pmid><doi>10.1021/es030075d</doi><tpages>7</tpages></addata></record> |
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| ispartof | Environmental science & technology, 2004-03, Vol.38 (5), p.1582-1588 |
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| subjects | Applied sciences Biodegradation, Environmental Biological and medical sciences Biological treatment of sewage sludges and wastes Bioreactors Bioremediation Biotechnology Contaminated sediments Cost analysis Cost-Benefit Analysis Earth sciences Earth, ocean, space Engineering and environment geology. Geothermics Environment and pollution Exact sciences and technology Feasibility Studies Fundamental and applied biological sciences. Psychology Geologic Sediments - chemistry Heavy metal content Heavy metals Industrial applications and implications. Economical aspects Leaching Metals, Heavy - isolation & purification Metals, Heavy - metabolism Other wastes and particular components of wastes Phalaris - chemistry Phalaris - growth & development Phalaris arundinacea Pollution Pollution control costs Pollution, environment geology Rivers Sediments Sludge Sulfur Sulfuric Acids - chemistry Temperature Wastes Water Pollutants - economics Water Pollutants - isolation & purification Water Pollutants - metabolism |
| title | Bioremediation Process for Sediments Contaminated by Heavy Metals: Feasibility Study on a Pilot Scale |
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