METHOD FOR ELIMINATION OF WATER POLLUTANTS; INCREASING THE WATER PURIFICATION EFFICIENCY BY REDUCTION OF TIME AND CHEMICALS

摘要

The present invention relates to a process for improving the efficiency and reducing the time and chemical requirements of a biochemical and / or physicochemical treatment technology for the removal of dissolved and insoluble organic and / or inorganic contaminants in water. The process is based on (1) adding to the water or activated sludge to be treated one or more synthetic or natural substances containing at least 1% by weight of crystalline aluminosilicate crystalline, preferably one or more selected from clinoptilolite, mordenite and other zeolite species. to which cationic polymers with a large number of positively charged groups have previously been attached by physico-chemical bonds, (2) the chemical bond between the above-mentioned substances and the cationic polymers is established by mixing the above-mentioned cationic polymers previously converted to H- or NH4-form by chemical treatment or a mixture of the above substances with an aqueous solution of the cationic polymers previously reduced to below pH 5. ŕ