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专利名称：WATER TREATMENT METHOD AND WATER
TREATMENT FLOCCULANT
发明人：OOI, YASUHIRO,TADA, KEIJIROU,ABE,
YUKIO,IIZUKA, TAKESHI,KITANO, SATORU
申请号：EP10808161申请日：20100805公开号：EP2465593A4公开日：20130925
摘要：There is provided a water treatment method using a water treatment flocculantthat suffers from minimal secondary contamination with flocculation residues andcontains an alkaline solution of a phenolic resin. A water treatment method involving theaddition of a flocculant to water to be treated and subsequent membrane separationtreatment. The flocculant contains an alkaline solution of a phenolic resin having amelting point in the range of 130°C to 220°C. The water treatment flocculant is producedby a resole-type second-order reaction in the presence of an alkaline catalyst in which analdehyde is added to an alkali solution of a novolak phenolic resin. The novolak phenolicresin is produced by a reaction between a phenol and an aldehyde in the presence of anacid catalyst.
申请人：KURITA WATER INDUSTRIES LTD.,GUN EI CHEMICAL INDUSTRY CO., LTD.
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