UNDERGROUND WATER PURIFYING APPARATUS Russian patent published in 2002 - IPC

FIELD: water purification equipment. SUBSTANCE: apparatus has basic water supplying pipeline and basic water supplying pump, oxidation unit, clarification unit, clarified water discharge line, filtering unit with regeneration system, ready product vessel, and valve system, with mentioned parts of apparatus being sequentially arranged in the course of process. Apparatus is further equipped with set of reactant vessels for oxidizer, coagulant and flocculant, return circulation line and line for discharging sludge from clarification unit. Oxidation unit has pressure reactor-oxidizer and closed mixing circuit with circulation pump. Oxidizer vessel of reactant vessel unit is connected to basic water supplying pipeline immediately in front of basic water supplying pump. Clarification unit comprises reactor-clarifier and settler system. Coagulant and flocculant inlet devices are mounted in reactor-clarifier so that space between them may be adjusted. One end of return circulation line is connected to basic water pipeline and oxidizer vessel junction site and other end is connected to clarified water discharge line. Filtering unit has filters connected in series and charged with natural material possessing low alkaline properties and natural inert material. Filter regeneration system has air supplying line connected to filter charge upper layer, rinsing water supply line whose one end is connected to ready product vessel and other end is joined through valve system to filter lower ends and to air supplying line, and regeneration solutions discharge line. Apparatus may be used for purifying underground water, high-salt underground water, saline solutions and brines from iron and standardized toxic metals in domestic water treatment systems and for water treatment in sanatorium and health resort complexes, for obtaining ecologically pure preparations used for curing and prophylactic purposes, as well as for producing anti-glade preparations and refrigerants. EFFECT: wider operational capabilities and increased efficiency. 12 cl, 3 dwg