Treatment of waste water produced in the manufacture of expandab

Details Treatment of waste water produced in the manufacture of expandab Treatment of waste water produced in the manufacture of expandab

1975-01-23

1977-03-08

Wyse, Thomas G.

Liquid purification or separation

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

Responsive to fluid flow

C02C 500

Patent

active

040111610

ABSTRACT:
Treatment of waste water produced in the manufacture of expandable polystyrene, comprising passing a stream of fine gas bubbles through the waste water and removing the resulting foam containing a high concentration of impurities from the aqueous phase. In a special embodiment of the invention, the aqueous phase can then be subjected to further treatment.

REFERENCES:
patent: 3160586 (1964-12-01), Duke
patent: 3203893 (1965-08-01), House et al.
patent: 3232434 (1966-02-01), Albersmeyer
patent: 3434968 (1969-03-01), Lowe
patent: 3510001 (1970-05-01), Baer et al.
patent: 3855124 (1974-12-01), Lapidot

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