METHOD OF DECONTAMINATING EFFLUENT WATER Russian patent published in 2008 - IPC C02F3/34 

FIELD: chemistry.

SUBSTANCE: method involves putting into the treated liquid at the last purification stage, a biologically active agent of microorganisms, providing for extermination of microscopic flora, including potentially pathogenic and pathogenic - stimulants of infectious diseases. The biologically active agent used is a microbiological preparation, containing nonpathogenic microorganisms. The microbiological preparation is put into supply tank 1, which is previously filled with treated liquid, and kept until adaptation of nonpathogenic microorganisms to the medium. The supply tank 1, using pump 13 on pipe 14 is filled with treated sewage liquid and microbiological preparation from tank 11 in proportion of consumption of this mixture. From supply tank 1, the mixture is put before bioreactor 4 into the sewage water, supplied from the purification facilities. From mixer 3 on pipe 7, the sewage water is put into bioreactor 5, in which there is nozzle 6 with already immobilised microorganisms on it.

EFFECT: protection of water bodies and provision for conditions of active development of nonpathogenic microorganisms at the last stage of purification of effluent water.

1 dwg, 2 tbl