| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for dissolving a flocculant which suppresses the hydrolysis of a dissolved polymer flocculant and gives a normal flocculation performance by solving the problem that polymer flocculants used for flocculation of sludge or the like generates the hydrolysis at the time of dissolution and the hydrolysis with time after that depending on properties of dissolving water, and exhibits no normal flocculation performance, thereby making the ahead-preparation impossible. SOLUTION: The flocculant obtained by combining three components of the polymer flocculant, a reduction agent and an acidic substance of such an amount that when the polymer flocculant is dissolved to 0.1 mass% or more, the pH of the solution is 6 or less, thereby realizing stabilization. COPYRIGHT: (C)2008,JPO&INPIT
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