| 摘要 |
PROBLEM TO BE SOLVED: To provide a sludge dewatering apparatus and a sludge dewatering method which can sufficiently reduce the exhaust amount of dewatered/separated liquid produced in dewatering treatment of sludge. SOLUTION: The sludge dewatering apparatus 10 is provided with: a flocculant solution preparing tank 2 where a flocculant and water are mixed to prepare a flocculant aqueous solution; an admixing part 3 where the flocculant aqueous solution from the flocculant solution preparing tank 2 and the sludge to be subjected to dewatering treatment are admixed; a dewatering means 4 where the admixture from the admixing part 3 is subjected to dewatering treatment; and a returning means L11 for returning at least a part of the dewatered-separated liquid separated from the admixture by the dewatering treatment in the dewatering means 4 to the flocculant solution preparing tank 2. COPYRIGHT: (C)2008,JPO&INPIT
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