WATER PURIFICATION FILTER Russian patent published in 1999 - IPC

FIELD: deep purification of water. SUBSTANCE: filter has body with clarifying layer of floating charge, combined clarifying sorption layer, system for automatic change-over of filter mode of operation. Filter includes bellows for outlet of washing water, floating vessel which facilitates bellows charging, and vessel with float providing for automatic introduction of sorption or ion-exchange material into floating charge layer. Filter is provided with inclined troughs for uniform distribution of sorption material over floating charge surface and with container for reception of used-up sorption material. Water filtering is performed upwards, and floating charge regeneration, with water moving from above-filter space, downwards. Filter allows removal of sorption material for regeneration during operation. EFFECT: enlarged processing capabilities. 2 dwg