Method for treating laundry waste water
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United States of America Patent
Stats
-
May 4, 1993
Grant Date -
N/A
app pub date -
Oct 25, 1990
filing date -
Oct 25, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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