LOW ACRYLAMIDE FLOCCULANT COMPOSITION AND METHOD FOR USING LOW ACRYLAMIDE FLOCCULANT COMPOSITION

• Main Authors: YAIDE NORIHIRO, YASUNAGA TOSHIYUKI
• Format: Patent
• Language: English; Japanese
• Published: 08.02.2018
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

PROBLEM TO BE SOLVED: To provide a low acrylamide flocculant composition usable for various applications.SOLUTION: A low acrylamide flocculant composition includes an acrylamide-containing polymer flocculant and, in addition, at least one kind of auxiliary polymer flocculant selected from the group consisting of a poly(meth)acrylate, a salt of carboxymethylcellulose, an alginate, starch, guar gum and chitosan and the combination exhibits high flocculation ability. The low acrylamide flocculant composition can be widely used from water purification to sludge thickening without especially limiting applications since the acrylamide content of the whole flocculant composition is 0.05 mass% or less and it is low.SELECTED DRAWING: Figure 3 【課題】多様な用途に使用可能な低アクリルアミド凝集剤組成物を提供する。【解決手段】本発明の低アクリルアミド凝集剤組成物は、アクリルアミド含有高分子凝集剤に加え、ポリ（メタ）アクリル酸塩、カルボキシメチルセルロース塩、アルギン酸塩、デンプン、グァーガム、キトサンからなる群より選択される少なくとも１種の副高分子凝集剤とを有しており、この組合せにより高い凝集能力を発揮する。しかも、凝集剤組成物全体のアクリルアミド含有率が０．０５質量％以下と低くなっているので、用途も特に限定されず、浄水から汚泥濃縮迄幅広く使用することが可能となる。【選択図】図３