Liquid purification or separation – Processes – Chemical treatment
Patent
1992-05-14
1993-05-04
Cintins, Ivars
Liquid purification or separation
Processes
Chemical treatment
210806, 210807, C02F 900
Patent
active
052079260
ABSTRACT:
An industrial waste water treatment process including a step of guiding a waste water from chemical solution treatment troughs by a gutter into a waste water reservoir through a wire gauge filter; a step of adding a chemical solution, which contains NaOH and H.sub.2 O at the ratio of 25:75 by volume, into the waste water reservoir to destroy the acidic substances in the collected waste water; a step of pumping the collected waste water from the waste water reservoir to a water filtration tower for filtration through a series of water filtration tanks, permitting the filtrated water to be guided into a depositing reservoir; and a step of pumping the water from the depositing reservoir to a water tower for re-use.
REFERENCES:
patent: 4163716 (1979-08-01), Turnbull
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