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Bioaugmentation: Possible solution in the treatment of Bio-Refractory Organic Compounds (Bio-ROCs)

Paper ID Volume ID Publish Year Pages File Format Full-Text
3532 174 2012 12 PDF Available
Title
Bioaugmentation: Possible solution in the treatment of Bio-Refractory Organic Compounds (Bio-ROCs)
Abstract

Water quality is questionable when looking at the emerging pollutants that accumulate in hydrosphere day after day. In terms of water treatments to eliminate organic compounds, biological treatments are the most used technique, especially the conventional activated sludge (CAS) process. Unfortunately, several of these compounds such as petroleum and industrial wastes, some pesticides, pharmaceuticals, and hormonal substances appear to be refractory to such treatments and can join the different water surfaces from other natural environments especially contaminated soils. Physical and chemical treatments, in particularly the advanced oxidation processes (AOPs) are able to degrade some of these pollutants, but the nature and the possible effects of oxidation by-products remain controversial when complete mineralization does not occur. The aim of this article is to shed light on new and renewed biotechnological techniques recently introduced to resolve recalcitrance problem. Amending activated sludge with additional microorganisms able to produce versatile enzymes to enhance biodegradability or “bioaugmentation”, is gradually considered as a possible solution for the recalcitrance of Bio-Refractory Organic Compounds (Bio-ROCs). The use of this technique, traditionally in soil remediation field, and recently in water and sediments treatment is reviewed in this paper.

► Some emerging pollutants are refractory to conventional biological treatment. ► Acclimation, biostimulation and bioaugmentation processes were defined. ► Experimental approach to evaluate bioaugmentation's performance is exposed. ► Recently published papers dealing with bioaugmentation are reviewed. ► Some engineered new approaches of bioaugmentation are also noticed.

Keywords
AOP, advanced oxidation process; ABP, Advanced Biological Process; BA, bioaugmentation; Bio-ROC, Bio-Refractory Organic Compound; BS, biostimulation; 2,4-D, 2,4-dichlorophenoxyacetic acid; DNA, deoxyribonucleic acid; GEM, Genetically Engineered Microorgan
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Publisher
Database: Elsevier - ScienceDirect
Journal: Biochemical Engineering Journal - Volume 69, 15 December 2012, Pages 75–86
Authors
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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