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STUDIES ON MICROBIAL CHROMATE REDUCTION BY PSEUDOMONAS SP IN AEROBIC CONTINUOUS SUSPENDED GROWTH CULTURES

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Title STUDIES ON MICROBIAL CHROMATE REDUCTION BY PSEUDOMONAS SP IN AEROBIC CONTINUOUS SUSPENDED GROWTH CULTURES
 
Creator GOPALAN, R
VEERAMANI, H
 
Subject hexavalent chromium
activated-sludge
hexavalent chromium
microbial reduction
pseudomonas sp
continuous culture
 
Description Reduction of hexavalent chromium was studied in three bench-scale continuous stirred tank reactors. The inoculum was a culture of Pseudomonas sp., capable of giving 83% to 87% chromate reduction in 72-h batch assays with 60 mg Cr(VI) L(-1) in synthetic medium. The continuous culture studies were conducted for about 100 days using synthetic feed containing different levels of chromate (5 to 124 mg L(-1)) at 28 degrees to 30 degrees C and pH 6.8. The feed rate was varied over the range 0.5 to 1 L d(-1) to obtain hydraulic retention time of 36 to 72 h. Chromate reduction efficiency was 81% to 91% and 100% for influent Cr(VI) concentrations of 15 to 124 and 5 mg L(-1), respectively, with a hydraulic retention time of 72 h. (C) 1994 John Wiley and Sons, Inc.
 
Publisher JOHN WILEY & SONS INC
 
Date 2011-08-16T15:04:43Z
2011-12-26T12:55:00Z
2011-12-27T05:43:30Z
2011-08-16T15:04:43Z
2011-12-26T12:55:00Z
2011-12-27T05:43:30Z
1994
 
Type Article
 
Identifier BIOTECHNOLOGY AND BIOENGINEERING, 43(6), 471-476
0006-3592
http://dx.doi.org/10.1002/bit.260430606
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9536
http://hdl.handle.net/10054/9536
 
Language en