有機汚泥の脱水剤およびその製造方法

Dewatering agent for organic sludge and its preparation

Abstract

(57)【要約】 【課題】 都市下水、屎尿、一般産業排水の生汚泥、余 剰汚泥、凝集汚泥、消化汚泥、あるいはこれらの混合汚 泥などの広い範囲の有機汚泥に対して優れた凝集脱水性 能を発揮する脱水剤を開発する。 【解決手段】 (A)水溶性カチオン性ビニル単量体と (B)スルホン基を含む水溶性ビニル単量体を、必要に 応じて(C)連鎖移動剤の存在下に、逆相エマルジョン 重合させて得られる水溶性高分子であって、この水溶性 高分子の分子内および分子間においてカチオン基とスル ホン基の間で結合を起こしてイオンコンプレックスを形 成せしめた水溶性高分子を有機汚泥の脱水剤として使用 する。
PROBLEM TO BE SOLVED: To prepare a coagulant capable of a high degree separation with a low dosage from a water soluble polymer which is a copolymer of water soluble vinyl monomers containing a specified water soluble cationic vinyl monomer or a mixture of a specified range and a vinyl monomer containing a specified range of a sulfone group. SOLUTION: In the coagulation treatment of organic sludge such as raw sludge of municipal sewage, that of general industrial drainage or their mixture, a dewatering agent consisting of a water soluble polymer which is a copolymer of water soluble vinyl monomers expressed by the formula containing 5-99.9mol% of a water soluble cationic vinyl monomer or its mixture and 0.1-3mol% of a vinyl monomer having a sulfone group is added. In the formulas, A is O or NH; B is C 2 H 4 , C 3 H 6 , or C 3 H 5 OH; R 1 is H or CH 3 ; R 2 , R 3 are each a 1-4C alkyl group; R 4 is H or a 1-4C alkyl group or benzyl group; X - is an anionic counter ion. Accordingly, a coagulant capable of a high degree separation with a low dosage can be prepared. COPYRIGHT: (C)1997,JPO

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    JP-2009022840-AFebruary 05, 2009Toagosei Co Ltd, 東亞合成株式会社高分子凝集剤及びその用途