| 摘要 |
FIELD: purification of natural waters. ^ SUBSTANCE: the invention is dealt with the methods of purification of natural waters intended for drinking with simultaneous production of carbon-to-mineral material, which may be used for soil development. the Method of purification of potable water from salts of hardness (Ca, Mg) with simultaneous production of carbon-to-mineral material of agroindustrial application provides for treatment of the water with a lime mortar [Ca(OH)2] and delivery of the produced reaction mixture in the form of a set jets all over the height and the circumference of the suspended layer of a ball-type granulated carbon - carbon material with specific surface of mesopores in terms of nitrogen of 0.5-100 m2 / g, bulk volume of pores 0.08-0.8 cm3 / g and value of pH - 9-11. The process is conducted up to 10-120 % saturation of sorbent by reaction particles and then sorbent is removed without regeneration. Extracted carbon-to-mineral material is treated with a solution of sulfuric either phosphoric acids or their mixture in an equivalent ratio. The method allows to reduce hardness of water and to attach useful properties to the spent sorbent. ^ EFFECT: the invention ensures reduction of hardness of water and attachment of useful properties to the spent sorbent. ^ 4 cl, 1 dwg |
