Liquid purification or separation – Recirculation – From bottom of separator
Patent
1986-06-04
1991-01-08
Wyse, Tom
Liquid purification or separation
Recirculation
From bottom of separator
210207, 210220, 210256, C02F 322
Patent
active
049832859
ABSTRACT:
An individual wastewater treatment plant 1 including an aeration piping sub-system 27, 28 and an inverted, cone-shaped clarifier 13 concentrically suspended within an outer tank 10, the clarifier being supported by a support grid of standard-type PVC plastic pipe elements, including a series of four radially disposed pipe sections 21 engaging the clarifier and supporting and positioning the aeration piping system. The aeration piping is force fitted into "U" shaped slots formed in the support grid. Two embodiments for the clarifier engagement and support sub-system are disclosed, one using a series of peripherally spaced, thin slotted, inverted "T" elements 23 (FIG. 4) and the other using radial pipe sections 30 extending through the wall of the clarifier (FIG. 6), with the latter using a side-ways "U" slot 31 to hold the aeration piping and the first embodiment using inverted "U" 26 slots formed in the bottom of additional "T" elements 25 (FIG. 3). Anchored pipe sleeves are cast in place in the concrete tank walls (FIG. 5) for separately coupling the inlet and outlet lines 17, 18 through the wall.
REFERENCES:
patent: 2796176 (1957-06-01), Monson
patent: 3118834 (1964-01-01), Southworth et al.
patent: 3419491 (1968-12-01), Messa
patent: 3658176 (1972-04-01), Reid
patent: 4259185 (1981-03-01), Mixon
Pugh C. Emmett
Wyse Tom
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