SELF-CLEANING LONG-ACTING FILTER FOR REMOVAL FROM WATER OF IMPURITIES WITH HIGH ENVIRONMENTAL HAZARD

摘要

A self-cleaning long-acting filter for removal from water of impurities with high environmental hazard consists of a body, a perforated partition, a filter bed located above and below perforated partition, a bellows U-shaped pipe with a hydraulic lock, water supply pipes for cleaning, removal of purified water and removal of wash water, it comprises an airlift saturation-circulation pipe, which hydraulically connects the lower and upper areas of the body, which are located below perforated partition and above perforated partition, as well as a system of dosing - gas saturation with an ejection nozzle, which is attached to airlift-saturation circulation pipe.