Simultaneous removal of parathion and methyl parathion by genetically engineered Escherichia coli in a biofilter treating polluted air Online publication date: Wed, 29-Apr-2015
by Lin Li, Chao Yang, Yaqi He, Chuanling Qiao, Junxin Liu
International Journal of Environment and Pollution (IJEP), Vol. 45, No. 1/2/3, 2011
Abstract: A biofilter inoculated with a genetically engineered Escherichia coli strain was successfully applied to treat air streams containing a mixture of parathion and methyl parathion (MP). Average removal efficiencies of 95.2% for parathion and 98.6% for MP were obtained during the overall operation period. Compared with conventional biofilters, the biofilter inoculated with the engineered E. coli BL21 was far more effective, especially in the initial stages. Parathion and MP could be treated simultaneously within one biofilter. Metabolite analysis revealed that parathion and MP were hydrolysed to p-Nitrophenol (PNP). Additionally, nitrate and sulphate were detected during the biofilter operation. The biofilter performance and microbial community were also assessed and characterised.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Environment and Pollution (IJEP):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com