Method for treating laundry waste water

Details Method for treating laundry waste water Method for treating laundry waste water

1990-10-25

1993-05-04

Hruskoci, Peter

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

8158, 68 18R, 210737, 210804, B01D 1705

Patent

active

052079228

ABSTRACT:
A method is designed to treat the effluent from a commercial laundry facility. Commercial laundry facilities produce typically a relatively clean effluent produced by washing clothing, towels and the like. The same laundry facility can also produce an oily effluent from washing shop towels, mops and the like. The effluent produced by the commercial laundry is all subjected to a particulate filtration and heat exchanger. The nonoily effluent is then directed to the sanitary drain. The oily effluent is treated with a demulsifier to break down the oil/water emulsion and is subsequently transferred to a oil/water separator. This permits the capacity of the oil/water separator to be approximately 1/3 to 1/4 of that which would be required to treat all effluent in the laundry.

REFERENCES:
patent: 3192155 (1965-06-01), Bready et al.
patent: 3841116 (1974-10-01), Klein et al.
patent: 4108768 (1978-08-01), Sebelik et al.
patent: 4211650 (1980-07-01), Thomas
patent: 4211651 (1980-07-01), Thomas
patent: 4211652 (1980-07-01), Thomas
patent: 5076937 (1991-12-01), Montgomery
patent: 5097556 (1992-03-01), Engel et al.

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