Claims
- 1. An apparatus for the treatment of waste water comprising:
- (a) an open-topped water tight container for receiving and holding the waste water to be treated; said container having a rim and further comprising:
- (i) a filter arranged inside of the container; said filter comprising a plurality of layers of granular or porous filter medium, and having a starting layer of relatively course medium with large pores serving as an initial treating layer; a next layer of finer medium with more surface area per unit of volume and smaller pores; and each successive layer filter medium being respectively finer with more surface area and smaller pores than the previous layer;
- (ii) a passageway for receiving the waste water to be treated and for discharging the waste water into the starting layer of the filter for distribution through the successive layers of filter medium;
- (b) a shapeable medium having hydrophilic surfaces and having an inverted U cross section; said shapeable medium being arranged over the rim of said container with two depending legs of different lengths; the shorter leg of the shapeable medium reaching to the top of the uppermost layer of filter medium in the container, and the longer leg of the shapeable medium reaching to a discharge locale outside of the container; said discharge locale being located at a level which is below the top of the uppermost layer of filter medium inside of the container; whereby the shapeable medium supports and guides a flow of film of the waste water from the filter to the discharge locale, while this film of waste water is simultaneously purified by biological and physical treatments; and
- (c) a collector for treated liquid, located at the discharge locale, which receives the film of treated liquid from the shapeable medium.
Parent Case Info
This application is a continuation of Ser. No. 07/467,141, filed Jan. 18, 1990, now abandoned.
US Referenced Citations (7)
Continuations (1)
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Number |
Date |
Country |
Parent |
467141 |
Jan 1990 |
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