METHOD OF PRODUCING GRANULATED MATERIAL FOR PURIFICATION AND DISINFECTION OF DRINKING WATER AND GRANULATED MATERIAL OBTAINED USING SAID METHOD Russian patent published in 2019 - IPC C02F1/00 

FIELD: technological processes.

SUBSTANCE: disclosed is a method of producing granular material for purifying and disinfecting drinking water, comprising a step of mixing sorbent and disinfectants and polymer binder and a step for thermal compression of the starting mixture, characterized by that sorbent used is activated carbon with an iodine number of more than 1,000 mg/g, and the stage of thermal compression of the initial mixture of fine sorbing and disinfecting substances and the polymer binder is carried out by extrusion or hot sintering at temperature of (10–40) °C is higher than softening point of polymer binder and when mixture is (12–25) %, at ratio of activated carbon : decontaminating agent : polymer binder (0.1–1):(74–84.9):(10–25) wt. % with subsequent crushing of obtained porous block material and its fractionation. As a result, granular material with granule size of (0.3–2.0) mm is obtained, with porosity in granules – (1–5) mcm. Proposed invention can be used in pressure and pressureless water purification filters.

EFFECT: high-porosity granulated material is obtained for purification and disinfection of drinking water with high performance characteristics for water purification up to 96 % over extended resource of silver cations release into water, which reaches 45,000 volumes of water per 1 volume of material.

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