A waste treatment module (10) designed for placement within an aeration basin (12) is provided which performs all of the desirable functions of aeration, flocculation, sedimentation, sludge return, effluent collection and skimming. the module (10) includes walls (20) defining an upright chamber (22)
A waste treatment module (10) designed for placement within an aeration basin (12) is provided which performs all of the desirable functions of aeration, flocculation, sedimentation, sludge return, effluent collection and skimming. the module (10) includes walls (20) defining an upright chamber (22); the latter is provided with a pair of side marginal, slotted inlets (28, 30) with corresponding flocculators (24, 26) below the respective inlets (28, 30). Each flocculator (24, 26) is equipped with a plurality of vertically spaced baffle plates (86, 88, 90) having offset openings (92, 94, 96, 98) so as to cause solids within the wastewater to traverse a tortuous descending flow path which promotes flocculation. An agglomerated flocculent is collected within a lower sedimentation zone (34) and then passes into a central collector (108) of inverted V-shaped configuration. Suction airlift pumping devices (118, 122) communicating with the collector (108) serve to elevate the flocculent to a trough (120), whereupon the flocculent is returned to basin (12). Clarified liquid passes through intake pipes (124, 126) and then into specialized weir devices (132, 134) for discharge to a stream or the like. The module (10) is also equipped with exterior aerators (160), floating skimmers (152) and optional devices (174, 176) for introduction of chemical treating agent into the wastewater adjacent the module inlets (62, 64).
대표청구항▼
1. A waste treatment module adapted to be positioned within a basin for the treatment of solids-containing liquid waste therein, said module comprising: walls defining an upright treatment chamber having a liquid waste inlet adjacent the upper end of the chamber; means within said chamber and be
1. A waste treatment module adapted to be positioned within a basin for the treatment of solids-containing liquid waste therein, said module comprising: walls defining an upright treatment chamber having a liquid waste inlet adjacent the upper end of the chamber; means within said chamber and beneath said inlet for promoting the flocculation of waste solids, including flocculation structure for causing said solids to traverse a tortuous, descending flow path within the chamber; means defining a sedimentation zone below said flocculation-promoting means for permitting collection of flocculent within said chamber, said sedimentation zone-defining structure including apertured walls presenting an upright, closed-top collector; means communicating with said sedimentation zone for withdrawing portions of the collected flocculent upwardly at a substantially uniform rate for return of the flocculent to said basin, said flocculent-withdrawal means comprising an elongated, upright withdrawal pipe extending through the top of said collector to communicate with the interior thereof, and means for introducing compressed air adjacent the lower end of the withdrawal pipe whereby to create an airlift pumping action for withdrawal of flocculent from said collector and return thereof to the basin; and means adjacent the upper end of said chamber for withdrawing treated liquid therefrom. 2. The module as set forth in claim 1, said inlet comprising an elongated screen presenting a series of narrow, spaced apart slots along the length thereof. 3. The module as set forth in claim 1, there being a pair of liquid waste inlets adjacent the upper end of said chamber and respectively extending along opposite sides thereof. 4. The module as set forth in claim 1, said flocculation structure comprising a plurality of spaced apart, superposed baffle plates positioned beneath said inlet, each of said baffle plates presenting flow passages therethrough, at least certain of said flow passages provided in adjacent baffle plates being relatively offset. 5. The module as set forth in claim 1, said sedimentation zone-defining means comprising a pair of upright, inclined, opposed converging walls beneath said flocculation structure for gravitional collection of flocculent adjacent the lower end of said chamber. 6. The module as set forth in claim 5, said converging walls being formed of metal having an epoxy finish thereon for promoting gravitation of flocculent. 7. The module as set forth in claim 1, including means positioned exteriorly of said chamber for introducing air into the liquid waste within said basin. 8. The module as set forth in claim 1, including means adjacent said waste inlet for addition of treating agents to said liquid waste. 9. The module as set forth in claim 1, including means for skimming the liquid within said chamber, and for returning collected skimmings to said basin. 10. The module as set forth in claim 1, said liquid withdrawing means comprising an elongated, apertured conduit positioned within said module and below the normal liquid level therein.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (1)
Schmid Lawrence A. (2804 Brad Lane Manhattan KS 66502), Modular aerator and separator assembly for sewage treatment facility.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.