Paper Title:
The Co-Metabolic Biodegradation Kinetic Models of a Chlorinated Alkene with Mutagenicity, Carcinogenicity and Teratogenicity by Two Strains of Aerobic Bacteria
  Abstract

Purpose 1,1-DCE is a environmental pollutant of mutagenicity, carcinogenicity and teratogenicity. This paper studied the biodegradation of 1,1-DCE by two strains of aerobic bacteria which use benzene as co-metabolic substrate. Procedures First the two strains were activated, then through batch experiments, the residual concentrations of 1,1-DCE were monitored. Methods The biodegradation rates were determined, and the varying trends of the biodegradation rates with the initial concentrations were fitted by some kinetic models. Results The biodegradation kinetics of 1,1-DCE by the strain DB–I fits Monod Model, the corresponding parameters are νmax=0.015h-1, Ks=10.18 mg·L-1, while the biodegradation kinetics by strain DB-M fits Haldane Model, and the parameters respectively are νmax =0.0063h-1, Ks =4.55mg·L-1,Ki=13.09mg·L-1. Conclusion The specific substrate removal rate constant of 1,1-DCE by strain DB–I is higher than that of strain DB–M, and they are both higher than those of the studies performed by other authors.

  Info
Periodical
Chapter
Chapter 3: Chemical and Biomedical Engineering
Edited by
Honghua Tan
Pages
1040-1049
DOI
10.4028/www.scientific.net/AMM.138-139.1040
Citation
H. T. Shang, Q. Yang, Y. Zhang, "The Co-Metabolic Biodegradation Kinetic Models of a Chlorinated Alkene with Mutagenicity, Carcinogenicity and Teratogenicity by Two Strains of Aerobic Bacteria", Applied Mechanics and Materials, Vols. 138-139, pp. 1040-1049, 2012
Online since
November 2011
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