METHOD FOR PURIFICATION OF WATER OF OPEN TANKS Russian patent published in 1997 - IPC

FIELD: purification of water, purification of tanks against impurities of metal ions and inorganic acids. SUBSTANCE: carbonanite is proposed as reagent for treatment of water, content of calcium carbonate in it being 75-86 mass %, total content of carbonates in it is 80-95 mass %. Expense of said reagent is 0.05-10.00 kg/m³. Size of particles of said reagent is chosen so that its maximal size is not more 0.2 mm, and minimal size is so that sedimentation period of said particles to the bottom of tank is not more 1 h. Minimal size of reagent particles is 0.01-0.03 mm. EFFECT: improved efficiency of the method.