Title:
WATER TREATMENT FLOCCULANT AND WATER TREATMENT METHOD
Document Type and Number:
Japanese Patent JP2016144778
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a water treatment flocculant and a water treatment method capable of efficiently performing the coagulation treatment of organic matter, especially biological metabolism-derived polymeric organic matter such as a polysaccharide and the like, contained in various kinds of industrial waste water, domestic waste water, the biologically treated water of the waste water and water to be treated such as surface water, ground water and the like.SOLUTION: A water treatment flocculant containing tannin where the composition ratio of tannin having a molecular weight of 10,000 or more is increased and a water treatment method where the water treatment flocculant is added to treatment water containing biological metabolite are provided. High coagulation treatment effect to biological metabolism-derived polymeric organic matter such as a polysaccharide can be obtained by tannin increased with the composition ratio of tannin having a molecular weight of 10,000 or more.SELECTED DRAWING: None
Inventors:
FUJII AKIHIRO
KAWAKATSU TAKAHIRO
KAWAKATSU TAKAHIRO
Application Number:
JP2015022438A
Publication Date:
August 12, 2016
Filing Date:
February 06, 2015
Export Citation:
Assignee:
KURITA WATER IND LTD
International Classes:
B01D21/01; B01D61/04; B01D61/14; B01D61/58; C02F1/24; C02F1/44; C02F1/52; C02F1/56; C02F9/00
Attorney, Agent or Firm:
Tsuyoshi Shigeno
Takayuki Shigeno
Takayuki Shigeno