METHOD TO PURIFY WATER AND A DEVICE TO IMPLEMENT IT Russian patent published in 1995 - IPC

FIELD: water purification from impurities of organic nature, heavy metals and microorganisms. SUBSTANCE: device is made in the form of cylindrical shell, diameter of which is equal to or more than its height. The shell has conical lid and bottom equipped proper outlet and inlet nozzles for water. Internal space of the shell is subdivided along its height by three partitions into zones. These partitions have perforation gradually distributed along all area, with upper and lower partitions having holes in their periphery. Middle partition has one central hole of such dimensions, that ratio of area of additional holes to the rest perforation area is (1 - 9): 1 for each partition. A layer of phosphate of cellulose ether with static exchange capacity volume exceeding 2 mg- eq/g is placed over upper and lower partitions, and over and under middle partition. The remainder space inside shell is filled with mixture of carboxyl bearing cationite with static exchange capacity exceeding 10 mg-eq/g, anionite with static exchange capacity exceeding 1 mg-eq/g, and activated charcoal with volumetric ratio between above three sorbents equal to 1:(1 - 5):(4 - 10), and with ratio of phosphate of cellulose ether volume to other sorbents equal to 1:(2 - 5). Device comprises cylindrical body with a lid and conical bottom. Inlet and outlet branch pipes are connected to the lid and bottom. Device comprises also horizontal partitions with holes of different diameters made in them, and fiber ionexchanging material layers located at lower and upper and at both sides of middle partition, and grained sorbent located between above layers. EFFECT: purified water. 3 cl, 1 dwg, 2 tbl