BIODEGRADATION OF CYANIDE COMPOUNDS BY PSEUDOMONAS-FLUORESCENS IMMOBILIZED ON ZEOLITE

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dc.contributor.authorSUH, YJko
dc.contributor.authorPARK, JMko
dc.contributor.authorYang, Ji-Wonko
dc.date.accessioned2013-02-27T05:54:29Z-
dc.date.available2013-02-27T05:54:29Z-
dc.date.created2012-02-06-
dc.date.created2012-02-06-
dc.date.issued1994-06-
dc.identifier.citationENZYME AND MICROBIAL TECHNOLOGY, v.16, no.6, pp.529 - 533-
dc.identifier.issn0141-0229-
dc.identifier.urihttp://hdl.handle.net/10203/66840-
dc.description.abstractA cyanide-degrading bacteria, Pseudomonas fluorescens NCIB 11764, was used for the treatment of wastewater containing cyanide. After successive subculture for 2 months in cyanide-containing medium, cultures were fully adapted to cyanide and able to grow in a medium containing up to 260 mg l(-1) of cyanide. By fed-batch culture supplying only cyanide, it was confirmed that cyanide was the limiting nutrient as a nitrogen source. Ammonia was found to inhibit cyanide degradation, and the rate of degradation was halved when the ammonia concentration was higher than 1 mM. In a 15-l jar fermenter, 26 mg l(-1) of cyanide was consumed almost completely within 48 h and the final yield of growth on cyanide was calculated as 4.21 mg dry cell wt mg(-1) CN. Cells of P. fluorescens were immobilized on zeolite and applied to a modified activated sludge-type reactor to mimic the actual activated sludge system of a coke-plant wastewater treatment system. In this immobilized system operated batchwise, 26 mg l(-1) of cyanide was degraded completely by 8 g l(-1) of immobilized particles within 10 h. The same reactor system was operated in a continuous mode, and the cyanide concentration of the outlet reached the stationary-state level of less than 0.1 mg l(-1) within 2 days at 0.041 h(-1) of dilution rate and within 3 days at 0.082 h(-1) of dilution rate, respectively.-
dc.languageEnglish-
dc.publisherBUTTERWORTH-HEINEMANN-
dc.subjectUTILIZES CYANIDE-
dc.subjectNITROGEN-
dc.subjectGROWTH-
dc.subjectSTRAIN-
dc.titleBIODEGRADATION OF CYANIDE COMPOUNDS BY PSEUDOMONAS-FLUORESCENS IMMOBILIZED ON ZEOLITE-
dc.typeArticle-
dc.identifier.wosidA1994NK67200012-
dc.identifier.scopusid2-s2.0-0028305005-
dc.type.rimsART-
dc.citation.volume16-
dc.citation.issue6-
dc.citation.beginningpage529-
dc.citation.endingpage533-
dc.citation.publicationnameENZYME AND MICROBIAL TECHNOLOGY-
dc.contributor.localauthorYang, Ji-Won-
dc.contributor.nonIdAuthorSUH, YJ-
dc.contributor.nonIdAuthorPARK, JM-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorCYANIDE BIODEGRADATION-
dc.subject.keywordAuthorPSEUDOMONAS FLUORESCENS-
dc.subject.keywordAuthorZEOLITE-
dc.subject.keywordPlusUTILIZES CYANIDE-
dc.subject.keywordPlusNITROGEN-
dc.subject.keywordPlusGROWTH-
dc.subject.keywordPlusSTRAIN-
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