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US 2004/0134848 A1Published application
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.
Claims16
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) 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;
- c) a secondary filter having a plurality of inlets and outlets, one of said inlets of said secondary filter being coupled to said outlet of said equalization tank;
- d) a sludge holding tank having a backwash inlet coupled to one of said outlets of said secondary filter and a decant outlet coupled to one of said inlets of said equalization tank;
- e) a source of backwash water;
- f) a backwash pump having an inlet coupled to said source of backwash water and an outlet coupled to one of said inlets of said secondary filter;
- and
- g) an air blower coupled to one of said inlets of said secondary filter.
5 more elements
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;
- 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) 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;
- and
- f) a plurality of leaching pools having an inlet, said inlet of said leaching pools being coupled to said outlet of said secondary filter.
4 more elements
Dependencies are inferred from the claim text.