title: [Isolation, degradation characteristics of a 1,2-dichloroethane-degrading strain].
abstract: A 1,2-dichloroethane-degrading bacterium T-2, which was able to utilize 1,2-dichloroethane as the sole carbon and energy source, was isolated from the activated sludge of a chemical plant in Zhejiang. According to the morphological, physiological and biochemical characteristics and sequence analysis of 16S rRNA, the strain was identified as Starkeya sp. T-2. The optimal temperature and pH for 1,2-DCA degradation were 30 degrees C and 7.0-8.0, respectively. The 1,2-DCA degrading process followed the Haldane kinetic model. The maximum specific growth rate and specific degradation rate were 0.065 h(-1) and 0.54 h(-1), respectively. The maximum tolerable concentration of 1,2-DCA for the strain was 500 mg x L(-1), and the cell yield coefficient was 0. 191 mg x mg(-1). Strain T-2 could mineralize 1,2-DCA into CO2 and H2O, with a mineralization ratio of 45%.
authors.affiliation: College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, China. xiaochwang@126.com
authors.forename: Xiao-Chun
authors.initials: XC
authors.lastname: Wang
authors.forename: Dong-Zhi
authors.initials: DZ
authors.lastname: Chen
authors.forename: Xiao-Jun
authors.initials: XJ
authors.lastname: Jin
authors.forename: Jian-Meng
authors.initials: JM
authors.lastname: Chen
mesh_terms: D001419:Bacteria / Q000302:isolation & purification* / Q000378:metabolism*; D001673:Biodegradation, Environmental; D002617:Chemical Industry; D007220:Industrial Waste / Q000032:analysis; D012722:Sewage / Q000382:microbiology*; D064091:Waste Disposal Facilities; D014865:Waste Disposal, Fluid / Q000379:methods
chemical_list: D007220:Industrial Waste; D012722:Sewage