Liquid purification methods

Details Liquid purification methods Liquid purification methods

1991-11-25

1992-06-23

Silverman, Stanley S.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210738, 210788, 210713, 210803, 209160, 209161, B01D 2126, B01D 4512

Patent

active

051240491

ABSTRACT:
New systems for the purification of liquids containing suspended solids and/or dissolved solid materials basically include a conical flocculator unit and a conjoined conical clarifier unit. The flocculator has a cylindrical lower portion, frustum middle portion and large diameter cylindrical top portion while the clarifier is essentially a large diameter cylindrical top portion over a lower frustum portion. Water or other liquid to be purified enters the flocculator lower portion via opposed, unequally sized nozzles to assume a helical flow upward past a series of deflector plates positioned at the top of the lower flocculator portion while a sludge blanket forms therein. A double flume plus slot arrangement located at the junction of the flocculator with the clarifier separates solids from liquid as fluid flow from the flocculator passes into the clarifier where it is subjected to further separation of sludge from clarified liquid with part of the sludge being recycled to the flocculator. New purification methods operated with the new systems are also disclosed.

REFERENCES:
patent: 2353358 (1944-07-01), Prager
patent: 2653801 (1953-09-01), Fontein et al.
patent: 2874118 (1959-02-01), Albertsen
patent: 3235090 (1966-02-01), Bose et al.
patent: 4146471 (1979-03-01), Wyness
patent: 4372766 (1983-02-01), Andrepont
patent: 4726686 (1988-02-01), Wolf et al.
Brochure "DensaDeg High Rate Clarifier and Thickener", Infilco Degremont Inc., Mar. 1990 New Information, No. DB-555.

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