fulltext.study @t Gmail

Removal of hexavalent chromium by Trichoderma viride in an airlift bioreactor

Paper ID Volume ID Publish Year Pages File Format Full-Text
18217 42714 2006 7 PDF Available
Title
Removal of hexavalent chromium by Trichoderma viride in an airlift bioreactor
Abstract

Trichoderma viride was batch-cultivated in a stirred tank bioreactor and in a concentric tube airlift bioreactor in order to determine its capacity to remove hexavalent chromium [Cr(VI)] from aqueous solutions. The agitation rate (120 rpm) used during the stirred tank bioreactor cultivation caused mycelial fragmentation, and had a negative effect on the cell growth and Cr(VI) removal. The physical damage inflicted by the agitation rate was, presumably, sufficient to cause fragmentation of mycelia and as a result, diminish Cr(VI) removal. Compared with stirred tanks, pneumatic bioreactors are considered more suitable systems for the cultivation of shear sensitive cells, and hence further studies were carried out in a concentric tube airlift bioreactor. In this type of reactor, the strain exhibited an extraordinary capability to remove high concentrations of the highly toxic and soluble hexavalent chromium. Therefore, the airlift bioreactor might represent an attractive technological alternative for the treatment of wastewaters containing high Cr(VI) concentrations, using the T. viride strain. To our knowledge, this is the first report on Cr(VI) removal by a microbial culture in a pneumatically agitated bioreactor.

Keywords
Hexavalent chromium; Trichoderma viride; Airlift bioreactor
First Page Preview
Removal of hexavalent chromium by Trichoderma viride in an airlift bioreactor
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Enzyme and Microbial Technology - Volume 40, Issue 1, 6 December 2006, Pages 107–113
Authors
, ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us