| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a coagulating agent, which, in separating an oil component and a water component in an emulsion, does not produce sludge, and, in secondary treatment such as activated sludge treatment or the like, does not lower activated sludge throughput, and to provide a coagulation method using the coagulating agent. <P>SOLUTION: This coagulating agent is a water-soluble coagulating agent which is represented by general formula R<SB>1</SB>-Y, and is used for the step of separating/coagulating an oil component and a water component in an oil-in-water or water-in-oil emulsion to subject the separated water component to activated sludge processing treatment. In the formula, R<SB>1</SB>represents a polymer residue containing a monomer having on its side chain a quaternized nitrogen-containing cationic group; Y represents group -OSO<SB>3</SB>M produced by a peroxodisulfate incorporated in an amount of 0.3 to 1% by weight from the total monomer amount; and M represents hydrogen or a metal element. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
