| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a natural flocculation precipitant for water purification for improving water quality of public water surface such as rivers and lakes polluted. <P>SOLUTION: The natural flocculation precipitant for water purification is provided in which an environmental problem caused by using a flocculation precipitant for purifying a public water area can be solved by comprising a plurality of natural stone powders or particles as a main component of the flocculation precipitant, production cost of a flocculation precipitant can be reduced by mainly using an end material of produced stone material as a main component thereof, and in practical use, the natural flocculation precipitant for water purification of the present invention is used and stirred with a volume of sludge in the bottom while intaking air on a water surface to flocculate and precipitate the sludge, whereby activities of bacteria in the precipitated sludge can be activated to treat pollution (organic matter) in water. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
