+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Bioaugmentation treatment of atrazine in MBR using genetically engineered microorganism (GEM)



Bioaugmentation treatment of atrazine in MBR using genetically engineered microorganism (GEM)



Huan Jing Ke Xue= Huanjing Kexue 28(2): 417-421



Bioaugmentation treatment of atrazine by genetically engineered microorganism (GEM) in membrane bioreactor (MBR) and conventional activated sludge bioreactor (CAS), was investigated using domestic wastewater as co-substrate, and effects of bioaugmentation treatment on sludge activities were also discussed. The results showed that significant removal of atrazine was obtained in MBR with bioaugmentation: average atrazine concentration in effluent was 0.84 mg/L, average removal rate was 95%, and the maximum removal loading of atrazine was as high as 70 mg/(L center dot d). Average COD removal in MBR was 71%, and average COD concentration in effluent was 65 mg/L. However, COD removal was affected when volumetric loading of COD increased. NH3-N removal in MBR was also perfect: average NH3-N concentration in effluent was 1.1 mg/L, average removal rate was 97%, and the maximum removal loading of NH3-N was 143 mg/(L center dot d). Compared with sludge in common MBR, abilities of nitrification and nitrozation of sludge in bioaugmented MBR were higher but ability of carbon oxidation was lower, which was responsible for performance of COD and NH3 center dot N removal probably. Exposure to atrazine resulted in some negative effects on activated sludge and might be the reason for lower carbon oxidation ability of bioaugmented sludge.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 013231109

Download citation: RISBibTeXText

PMID: 17489209


Related references

Bioaugmentation with immobilized genetically engineered microorganism (GEM)/CAS process for treatment of atrazine wastewater. Huan Jing Ke Xue= Huanjing Kexue 29(6): 1555-1560, 2008

Leakage and survival of genetically engineered microorganism in the environment applied for wastewater bioaugmentation treatment. Huan Jing Ke Xue= Huanjing Kexue 29(9): 2571-2575, 2008

Bioaugmented treatment of atrazine by genetically engineered microorganism in different bioreactors. Huan Jing Ke Xue= Huanjing Kexue 32(2): 554-559, 2011

Atrazine wastewater treatment in a SPG membrane-aerated genetically engineered microorganism biofilm reactor. Huan Jing Ke Xue= Huanjing Kexue 35(8): 3018-3023, 2014

Bioaugmentation of the decolorization rate of acid red GR by genetically engineered microorganism Escherichia coli JM109 pGEX-AZR. World Journal of Microbiology and Biotechnology 24(1): 23-29, 2008

Enhanced atrazine removal using membrane bioreactor bioaugmented with genetically engineered microorganism. Frontiers of Environmental Science & Engineering in China 2(4): 452-460, 2008

Characteristics of atrazine-degrading genetically engineered microorganism (GEM) labeled with green fluorescent protein (GFP). Huan Jing Ke Xue= Huanjing Kexue 27(7): 1439-1443, 2006

Development of a genetically engineered microorganism for biological treatment of trichloroethylene and other chlorinated ethylenes. Soil and Environment 5: 1315-1316, 1995

Application of a floc-forming genetically engineered microorganism to a sequencing batch reactor for phenolic wastewater treatment. Journal of Bioscience & Bioengineering 88(1): 85-91, 1999

Application of a floc-forming genetically engineered microorganism to a sequencing batch reactor for phenolic wastewater treatment. Journal of Bioscience and Bioengineering 88(1): 85-91, 1999

Decoloration and bioaugmentation on azo dye by immobilized genetically engineered strain. Huanjing Kexue 28(11): 2598-2602, 2007

Decoloration and bioaugmentation on azo dye by immobilized genetically engineered strain. Huan Jing Ke Xue= Huanjing Kexue 28(11): 2598-2602, 2007

Bioaugmentation on decolorization of C.I. Direct Blue 71 by using genetically engineered strain Escherichia coli JM109 (pGEX-AZR). Journal of Hazardous Materials 163(2-3): 1123-1128, 2009

Construction of the genetically engineered microorganism of B.t. MP-342IC-15. Journal of Northeast Forestry University 29(1): 133-137, 2001

Study on Yingguang 93, a genetically engineered microorganism against take-all of wheat. Chinese Journal of Biological Control 7(4): 181-182, 1991