STRAIN OF ALCALIGENES LATUS BACTERIA USED FOR THE DECOMPOSITION OF POLYCHLORINATED BIPHENYLS

摘要

The present invention relates to a strain of Alcaligenes latus bacteria TKhD-13 VKPM V 75-05 (Russian classification of industrial micro-organisms) used for the decomposition of polychlorinated biphenyls (PCB). This invention can be used for the decontamination of objects in the environment or industrial waste which contain PCB. In order to produce a biomass, the strain is cultivated in media containing carbon and nitrogen sources as well as mineral salts. The strain is cultivated according to a submerged process until a titre of between 6.0.10<8> and 2.0.10<9> kilolitre/cm<3> is reached. The biomass obtained in concentrations of between 10<7> and 10<8> kilolitre/cm<3> is then used for the decomposition of PCB. The strain of the present invention is capable of reducing the PCB-content in soil and water by 35 to 50 %.