| Treatment of model soils contaminated with phenolic endocrine-disrupting chemicals with laccase from Trametes sp. in a rotating reactor. | |
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MedLine Citation:
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PMID: 16233103 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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An enzymatic treatment system for the remediation of sand contaminated with endocrine-disrupting chemicals (EDCs) was studied. Laccase from Trametes sp. (Laccase Daiwa) decreased the amounts of nonylphenol, octylphenol, bisphenol A and ethynylestradiol (synthetic estrogen) adsorbed on sea sand (2 micromol g(-1)) in a test tube with shaking. The phenolic endocrine-disrupting chemicals might have polymerized via enzymatic conversion to their phenoxy radicals. The optimum pH for the enzymatic treatment was approximately 5. A rotating reactor was used for scaling up the enzymatic treatment. The reaction rate increased by rotating the reactor. The optimum speed of revolution was 10-15 rpm for the treatment of nonylphenol. The amounts of octylphenol, bisphenol A, and ethynylestradiol also decreased enzymatically in the reactor. Our enzymatic treatment system with a rotating reactor will be useful for the treatment of soil highly polluted with phenolic EDCs. |
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Authors:
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T Tanaka; T Tonosaki; M Nose; N Tomidokoro; N Kadomura; T Fujii; M Taniguchi |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Journal of bioscience and bioengineering Volume: 92 ISSN: 1389-1723 ISO Abbreviation: J. Biosci. Bioeng. Publication Date: 2001 |
Date Detail:
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Created Date: 2005-10-19 Completed Date: 2005-11-03 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100888800 Medline TA: J Biosci Bioeng Country: Japan |
Other Details:
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Languages: eng Pagination: 312-6 Citation Subset: - |
Affiliation:
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Department of Materials Science and Technology, Niigata University, Niigata, Niigata 950-2181, Japan. tctanaka@eng.niigata-u.ac.jp |
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