UNIT FOR PURIFYING SEWAGE WATER FROM CONTAMINANTS Russian patent published in 1995 - IPC

FIELD: sewage water purification. SUBSTANCE: unit has, in combination, a device for transforming contaminants to deposit, an apparatus for filtering solutions, deposit dewatering facilities and pumps for withdrawing filtrate and for feeding a solution. The pumps are reversibly operated by a control panel. The pump for withdrawing filtrate has a suction connection provided with a branch pipe and a vessel for washing the filtering apparatus. The pressure pipe of the pump has ejector positioned opposite the filtrate flow. The filtering apparatus is employed to accomplish a main phase separation. On the control panel command the pump for feeding a solution is switched out and switched on is the pump for withdrawing filtrate which is fed through the ejector to the inner space of filtering members received in the filtering apparatus. EFFECT: reduced environmental pollution, increased capacity of unit. 1 dwg