Title:
PAPER PRODUCTION DEVICE AND WASTEWATER TREATMENT METHOD
Document Type and Number:
Japanese Patent JP2016121422
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To find an oxidant addition condition for further enhancing deodorization property, suppress corrosion of a paper production device, and reduce cost.SOLUTION: A paper production device 1 of the invention comprises: a wastewater treatment part 30 for treating water which is discarded from a paper production part 10 for forming paper from a raw material; a treatment water and the like supply part 40 for supplying at least one or more, selected from a group of treatment water, scum, and sludge (hereinafter, referred to as treatment water and the like), to the paper production part 10 same to the above mentioned paper production part 10 or other paper production part 10'; a weak oxidant supply part 50 for, supplying a weak oxidant in which, an oxidation reduction potential of a solution is smaller than an oxidation reduction potential of a solution of sodium hypochlorite to the treatment water and the like on the wastewater treatment part 30 or on the treatment water and the like supply part 40; and a sterilization agent supply part 60 for, supplying a sterilization agent to at least one of the paper production parts 10, 10' to which the treatment water and the like are supplied by the treatment water and the like supply part 40, out of one or more paper production parts 10, 10'.SELECTED DRAWING: Figure 1
Inventors:
HIDAKA KATSUHIKO
Application Number:
JP2014262399A
Publication Date:
July 07, 2016
Filing Date:
December 25, 2014
Export Citation:
Assignee:
KURITA WATER IND LTD
International Classes:
D21H21/04; C02F1/50; C02F1/72; C02F11/00
Attorney, Agent or Firm:
Hayashi Ichiyoshi
Yuichi Niiyama
Yuichi Niiyama
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