C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/52 (2006.01) B01D 21/08 (2006.01) C02F 3/02 (2006.01) C02F 3/12 (2006.01) C02F 3/20 (2006.01) C02F 3/22 (2006.01)
Patent
CA 2082391
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 respec- tive 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. Suc- tion 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 li- quid passes through intake pipes (124, 126) and thence into spe- cialized 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).
Aero-Mod Inc.
Gowling Lafleur Henderson Llp
LandOfFree
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