FILTER FOR CLEANING GAS-AIR MIXTURES AND PURIFICATION OF POTABLE AND SEWAGE WATERS Russian patent published in 1999 - IPC

FIELD: cleaning of gases and purification of potable and sewage waters. SUBSTANCE: filter is based on granulated synthetic or natural zeolite with particles sizing 0.1-1.5 mm. Zeolite is impregnated with organosilicon compound N,N′-bis(3-triethoxysilylpropyl)- thiocarbamide. Composition of zeolite with organosilicon compound increases absorbing ability of the filter with respect to toxic and carcinogenic compounds contained in gas-air mixtures, potable and sewage waters. Filter produces protective effect on humoral immunity and also on protein and nucleotide metabolism due to absorption of the most part of toxicants and cancerogenic substances from gas-air mixtures and waters. EFFECT: higher efficiency. 10 tbl