Evaluation of consortia of microorganisms for efficient removal of hexavalent chromium from industrial wastewater.
The Chromium (Cr) uptake ability of Cr-resistant bacterium Bacillus thuringiensis, yeast Candida etschellsii, and a protozoan Stylonychia mytilus, isolated from industrial waste water, was evaluated individually and in different combinations. It was found that the three types of microorganisms grown together in a culture medium could collectively uptake 90% of Cr(6+) from the culture medium as against 82% by bacterium + protozoan or yeast + protozoan combined culture, each. Consortium of bacterium, yeast and ciliates therefore could make much more efficient inoculum for remediation of Cr-contaminated industrial waste water.
Muneer
Bushra
B
School of Biological Sciences, University of the Punjab, New Campus, Lahore, 54590, Pakistan.
Rehman
Abdul
A
Shakoori
Farah R
FR
Shakoori
Abdul R
AR
D000818:Animals; D001419:Bacteria / Q000302:isolation & purification / Q000378:metabolism*; D001673:Biodegradation, Environmental; D002857:Chromium / Q000378:metabolism*; D056890:Eukaryota / Q000302:isolation & purification / Q000378:metabolism*; D007220:Industrial Waste; D014871:Water Microbiology; D014874:Water Pollutants, Chemical / Q000378:metabolism*; D018508:Water Purification / Q000379:methods*; D015003:Yeasts / Q000302:isolation & purification / Q000378:metabolism*
D007220:Industrial Waste; D014874:Water Pollutants, Chemical; D002857:Chromium; C074702:chromium hexavalent ion