Title:
METHOD FOR TREATING WET PAINT BOOTH CIRCULATING WATER
Document Type and Number:
WIPO Patent Application WO/2020/008947
Kind Code:
A1
Abstract:
A method for treating wet paint booth circulating water, the method including adding, to circulating water that includes water and excess paint: a phosphorous compound such as phosphoric acid; a nitrogen compound such as urea, or ammonium nitrate; and a phenol resin. Using this method makes it possible to effectively remove the excess paint caught in the wet paint booth and to reduce the chemical oxygen demand (COD) of the circulating water.
Inventors:
ARIMOTO YUTA (JP)
YOSHIKAWA TSUTOMU (JP)
YOSHIDA TSUNEYUKI (JP)
YOSHIKAWA TSUTOMU (JP)
YOSHIDA TSUNEYUKI (JP)
Application Number:
PCT/JP2019/025109
Publication Date:
January 09, 2020
Filing Date:
June 25, 2019
Export Citation:
Assignee:
KURITA WATER IND LTD (JP)
International Classes:
C02F1/52; B01D21/01; C02F1/56; C02F3/00; C02F3/02
Foreign References:
| JP2015188846A | 2015-11-02 | |||
| JP3196996U | 2015-04-16 | |||
| JP2001286800A | 2001-10-16 | |||
| JPH0370780A | 1991-03-26 | |||
| JPS4727292B1 | 1972-07-21 | |||
| JP2016140805A | 2016-08-08 | |||
| JP2016052639A | 2016-04-14 |
Attorney, Agent or Firm:
KIKUMA, Tadayuki (JP)
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