Laundromat wastewater treatment

Details Laundromat wastewater treatment Laundromat wastewater treatment

1998-09-11

2000-12-12

Simmons, David A.

Liquid purification or separation

Processes

Ion exchange or selective sorption

210683, 210723, 210726, 210266, 210269, C02F 142

Patent

active

061593761

ABSTRACT:
A method and apparatus for the treatment of wastewater effluent from a laundromat combines multiple filtering, particularly including, bag filters, to remove particulates including fine particulates followed by treatment in a weak base anion exchange resin bed to remove MBAS. The weak base resin was found to remove MBAS and organics such as LAS which were highly de-adsorbed in the efficient regeneration of the resin. The weak base anion exchange resin is preferably macroporous in the sulfate form. The invention contemplates multiple bag filters of different degrees of coarseness.

REFERENCES:
patent: 4145281 (1979-03-01), Weishaar et al.
patent: 4182676 (1980-01-01), Casolo

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