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US 6,926,822 B2Granted
Method and apparatus for removing particulate contaminants from commercial laundry wastewater
OwnerJames P. Sharkeyinventor
Life of this patent
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Abstract
A filtration apparatus includes a laundry waste sump, a primary 50 micron static screen filter, a 9,000 gallon equalization tank, at least one secondary media/carbon filter, a sludge holding tank with a pump to return excess water to the equalization tank, a backwash pump, an air blower, and a clear well tank water source for backwash. An exemplary embodiment of the invention also includes a surge tank between the primary and secondary filters and a surge tank between the secondary filter and the clear well tank.
Claims9
A water filtration apparatus, comprising:
- a) a primary filter having an inlet, a first discharge for discharging a combination of solids and water, and a primary effluent discharge;
- b) a filter sock having an inlet coupled to said first discharge of said primary filter and an outlet coupled to said primary filter inlet via a pump-operated sump;
- c) an equalization tank having a plurality of inlets and one outlet, said primary effluent discharge being coupled to one of the inlets of said equalization tank such that primary effluent is delivered by gravity to said equalization tank;
- d) a first surge tank having an inlet and a plurality of outlets, said inlet of said surge tank being coupled to said outlet of said equalization tank;
- e) pump means for pumping said primary effluent from said equalization tank to said first surge tank;
- f) a secondary filter having an inlet and an outlet, said inlet of said secondary filter being coupled to one of said outlets of said first surge tank such that primary effluent is delivered by gravity to said secondary filter;
- and
- g) a plurality of leaching pools having an inlet, said inlet of said leaching pools being coupled downstream of said outlet of said secondary filter.
5 more elements
Dependencies are inferred from the claim text.