Liquid purification or separation – Processes – Chemical treatment
Patent
1999-12-06
2000-10-31
Simmons, David A.
Liquid purification or separation
Processes
Chemical treatment
210169, C02F 172
Patent
active
061397563
ABSTRACT:
A method of treating water for a swimming pool comprising chlorination of the water, and filtration of the water using a fixed-bed filter with periodic backflushing of the filter using wash water to which a disinfectant has been added. The disinfectant is a peroxycarboxylic acid with one to six carbon atoms is used as disinfectant, preferably a solution containing peroxyacetic acid and/or peroxyformic acid and hydrogen peroxide. The method results in an improvement of the quality of the swimming-pool water and of the used wash water.
REFERENCES:
patent: 5384045 (1995-01-01), Chmieliewski et al.
patent: 5779914 (1998-07-01), Brown et al.
Fuchs Rainer
Huss Michael
Degussa-Huls AG
Hoey Betsey Morrison
Simmons David A.
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