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US 2002/0153334 A1Published application
Method and apparatus for removing particulate contaminants from commercial laundry waste water
OwnerJames P. Sharkeyinventor
Life of this patent
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Abstract
A filtration apparatus includes a filter element disposed at a 45 degree angle defining an upper chamber for solids and a lower chamber for liquid. A trough is disposed at the lower end of the filter element. The floor of the trough funnels toward a central drain and an overflow drain is located approximately 8 inches above the trough floor. The lower chamber is provided with a drain for recirculating water to a sprayer above the filter element and is also provided with an overflow drain approximately 8 inches above the floor.
Claims12
A filtration apparatus for filtering waste water containing particulate contaminants, said apparatus comprising:
- a) a housing having a bottom and an upwardly extending surrounding wall, said surrounding wall having an upper edge which defines an inlet for receiving waste water containing particulate contaminants;
- b) a substantially planar filter element having an interwoven filtering material disposed in said housing and spanning between said surrounding wall, said filter element spaced between said bottom and said inlet of said housing at an angle thereby defining an upper end and a lower end of said filter element;
- c) a dividing wall extending from the lower end of said filter element to said bottom of said housing thereby defining an unfiltered water space and a filtered water space;
- d) a first discharge outlet, in fluid communication with said filtered water space for discharging filtered waste water;
- and
- e) a second discharge outlet in fluid communication with said unfiltered water space for discharging particulate contaminants.
3 more elements
A filtration apparatus for filtering waste water containing particulate contaminants, said apparatus comprising:
- a) a housing having a bottom and an upwardly extending surrounding wall, said surrounding wall having an upper edge which defines an inlet for receiving waste water containing particulate contaminants;
- b) a substantially planar filter element having an interwoven filtering material disposed in said housing and spanning between said surrounding wall, said filter element spaced between said bottom and said inlet of said housing thereby defining an upper unfiltered water space and a lower filtered water space;
- c) a first discharge outlet, in fluid communication with said lower filtered water space for discharging filtered waste water;
- and
- d) a second discharge outlet in fluid communication with said unfiltered water space for discharging particulate contaminants, wherein
- said first discharge outlet includes an upstanding pipe rising from said floor of said housing in said filtered water space, thereby creating a reservoir of filtered water.
3 more elements
A method of filtering waste water containing particulate contaminants, comprising the steps of:
- a) introducing waste water into a filtration apparatus comprising a housing with a bottom and an upwardly extending surrounding wall, said surrounding wall having an upper edge which defines an inlet for receiving waste water containing particulate contaminants;
- a substantially planar filter element having an interwoven filtering material disposed in said housing and spanning between said surrounding wall, said filter element spaced between said bottom and said inlet of said housing at an angle thereby defining an upper end and a lower end of said filter element;
- a dividing wall extending from the lower end of said filter element to said bottom of said housing thereby defining an unfiltered water space and a filtered water space;
- a first discharge outlet in fluid communication with said filtered water space for discharging filtered waste water;
- and a second discharge outlet in fluid communication with said unfiltered water space for discharging particulate contaminants;
- b) discharging filtered water from the first discharge outlet;
- and
- c) discharging particulate contaminants from the second discharge outlet.
5 more elements
A method of filtering waste water containing particulate contaminants, comprising the steps of:
- a) introducing waste water into a filtration apparatus comprising a housing with a bottom and an upwardly extending surrounding wall, said surrounding wall having an upper edge which defines an inlet for receiving waste water containing particulate contaminants;
- a substantially planar filter element having an interwoven filtering material disposed in said housing and spanning between said surrounding wall, said filter element spaced between said bottom and said inlet of said housing defining an upper unfiltered water space and a lower filtered water space;
- a first discharge outlet in fluid communication with said filtered water space for discharging filtered waste water;
- and a second discharge outlet in fluid communication with said unfiltered water space for discharging particulate contaminants;
- b) discharging filtered water from the first discharge outlet;
- and
- c) discharging particulate contaminants from the second discharge outlet.
- d) maintaining a reservoir of filtered water in the filtered water space;
- e) using water from the reservoir, spraying water on top of the filter element to drive particulate contaminants toward the second discharge outlet.
6 more elements
Dependencies are inferred from the claim text.