文档介绍：Study on Selection and Training of the Strains
high-effectively Degrading PCBs
Zhe Zhao, Kefeng Shang, Xiuyan Zhou Lanying Zhang
Department of Environmental Science and Technology Environment and Resource Institute
Northeastern University at Qinhuangdao Jilin University
Qinhuangdao 066004, China; Changchun 130026, China
E-mail: zhaozhe1980@
Abstract—Polychlorinated biphenyl is a kind of persistent intermediates. The current work investigates the possibility
organic pollutants. Through isolating and purifying, the of the formation of a hybrid chemical-microbiological
isolated bacterial strains high-effectively degrading PCBs were treatment process for the degradation of Aroclors and
essfully identified as us and short bacillus remediation of PCB-contaminated soils[3,4].
according to their morphological characters. By acclimation,
their capacities for the degradation were enhanced. By tests,
the eliminating effects of the growth conditions were studied, II. EXPERIMENTAL
and the best conditions of degrading were: 303K, pH = 7, and
5mL inoculation amount. The degraded ratio reached % A. Experimental materials and instruments
after 7 days. GC6890 gas chromatograph (pany, USA),
CH21light microscope (Olympus, Japan), pressuresteam
Keywords-Polychlorinated Biphenyls; degradation character- sterilization device, electronic analytical