| 摘要 |
<p>The present invention relates to a water treatment composition for removing radioactive materials and heavy metals while decreasing hardness, comprising a mixture solution of (i) a colloidal silica solution (ii) a sodium carbonate solution and (iii) a poly alumium chloride solution including illite and a ferric chloride solution and a phosphate solution. The present invention relates to a water treatment method, comprising the steps of firstly injecting a colloidal silica solution and a sodium carbonate solution including illite together or separately in a ratio of 1 to 1 to water whose hardness is not less than 300; and secondly injecting a mixture solution of a poly alumium chloride solution, a ferric chloride solution and a phosphate solution in the same ratio of firstly injected each component, when the sediments of white microparticels are being made, thereby controlling pH of water between 7 and 8.</p> |
