Industrial waste water treatment process
OwnerKun-Hei Liuinventor
Life of this patent
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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.
Claims3
A method of treating waste water resulting from a process for removing iron rust from iron pipes before spray painting, which consists essentially of the steps of:
- (a) collecting waste water containing iron rust from a plurality of troughs used to remove said iron rust from said iron pipes into a gutter,
- (b) feeding said waste water through a wire gauge screen into a waste water reservoir,
- (c) adding a chemical solution containing NaOH and H.sub.2 O in a volume ratio of NaOH to H.sub.2 O of 25:75 to said waste water in said waste water reservoir.
- (d) feeding treated water from said waste water reservoir to a water filtration tower and passing said treated waste water through a plurality of water filtration tanks arranged in series, and then collecting filtered waste water into a depositing reservoir, and
- (e) pumping said collected filter waste water from said depositing reservoir to a water tower for reuse.
Dependencies are inferred from the claim text.