Wastewater treating biological film tank

Details Wastewater treating biological film tank Wastewater treating biological film tank

1991-03-11

1993-03-02

Bascomb, Jr., Wilbur

Liquid purification or separation

With gas-liquid surface contact means

With separator

2102212, 210615, C02F 306

Patent

active

051906465

ABSTRACT:
A small-sized, low cost to manufacture and use wastewater treating biological film tank by which wastewater produced in a single home can be treated in each home. A treating tank has arranged therein multi continuous-pore soft ceramic biological film elements. Waste or raw water is supplied into the tank through a waste/raw water supply pipe arranged in the top of the tank, pushed up through a cylindrical guide by the action of air bubbles forced into the tank through an air bubble generator arranged in the bottom of the tank, and then forced to flow over the cylindrical guide into and through the multi continuous-pore soft ceramic biological film elements wherein the water is purified by microorganisms which digest the nutrients in the waste or raw water. The surface area of each multi continuous-pore ceramic biological film element is about 25 times larger than the surface area of a conventional plastic biological film element.

REFERENCES:
patent: 4045344 (1977-08-01), Yokota
patent: 4137171 (1979-01-01), Yokatan
patent: 4274966 (1981-06-01), Palmer
patent: 4420397 (1983-12-01), Kaneko et al.
patent: 4839053 (1989-06-01), Tharp

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