Process for treating waste water containing polyvinyl alcohol

Details Process for treating waste water containing polyvinyl alcohol Process for treating waste water containing polyvinyl alcohol

1976-05-19

1978-01-03

Wyse, Thomas G.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 53, B01D 500, B01D 1100, B01D 1700

Patent

active

040665410

ABSTRACT:
A process for treating waste water containing polyvinyl alcohol (designated hereinafter as P.V.A.) comprising separation of the P.V.A. in the form of a compound with boric acid which is produced at pH 8 to 10 by a reaction with boric acid or borax added in the presence of an inorganic salt such as sodium sulfate, and using thus regenerated liquid repeatedly, and a process of utilizing waste containing P.V.A. for desizing textile.

REFERENCES:
patent: 3761406 (1973-09-01), Tsuk

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