Document Detail

Bioremediation of crystal violet using air bubble bioreactor packed with Pseudomonas aeruginosa.
MedLine Citation:
PMID:  16316674     Owner:  NLM     Status:  MEDLINE    
Seven water and sediment samples were collected and tested for decolorizing crystal violet. Pseudomonas aeruginosa was the most effective isolate for dye decolorization. The LC50 of the crystal violet (115 mg/l) was measured using Artemia salina as a biomarker. The effect of different heavy metals on crystal violet decolorization was investigated. Cd2+ and Fe3+ ions showed marginal enhancement of the decolorization process, the rate was 1.35 mg/l/h compared to (1.25 mg/l/h) for the control. Phenol and m-cresol showed no effect on crystal violet decolorization, meanwhile p-cresol and p-nitrophenol reduced the decolorization rate to 1.07 and 0.01 mg/l/h, respectively. P. aeruginosa cells were immobilized by entrapment in agar-alginate beads. The beads were cultivated and reused in Erlenmeyer flask and in an air bubble column bioreactor and they enhanced the crystal violet decolorization rate to 3.33 and 7.5 mg/l/h, respectively.
M A Manal; Samy El-Naggar; A El-Aasar; I Barakat Khlood
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Publication Detail:
Type:  Journal Article     Date:  2005-11-28
Journal Detail:
Title:  Water research     Volume:  39     ISSN:  0043-1354     ISO Abbreviation:  Water Res.     Publication Date:  2005 Dec 
Date Detail:
Created Date:  2005-12-12     Completed Date:  2006-04-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0105072     Medline TA:  Water Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  5045-54     Citation Subset:  IM    
Microbiology Laboratory, Marine Environmental Department, National Institute of Oceanography and Fisheries, Kaiyet Bay, El-Anfoshy, Alexandria, Egypt.
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MeSH Terms
Artemia / drug effects
Biodegradation, Environmental
Gentian Violet / isolation & purification,  metabolism*
Lethal Dose 50
Metals, Heavy / chemistry
Phenols / chemistry
Pseudomonas aeruginosa / isolation & purification,  metabolism*
Water Pollutants, Chemical / isolation & purification,  metabolism*
Water Purification / methods*
Reg. No./Substance:
0/Metals, Heavy; 0/Phenols; 0/Water Pollutants, Chemical; 548-62-9/Gentian Violet

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