Water clarification

Details Water clarification Water clarification

1978-09-19

1981-07-21

Bashore, S. Leon

Liquid purification or separation

Processes

Ion exchange or selective sorption

210695, 210711, 210673, 210205, B01D 1508

Patent

active

042797560

ABSTRACT:
A particulate coagulant/adsorbent for removing suspended impurities and colored substances from water by coagulation comprises a finely divided particulate mineral or clay material, the individual particles of which have been treated to produce a thin hydroxylated surface layer haivng a positive zeta potential at the adsorption pH.
A process and an apparatus for water treatment utilizing the coagulant/adsorbent and providing for regeneration and recycling thereof are also described.

REFERENCES:
patent: 3499837 (1970-03-01), Jaunarajs
patent: 3536198 (1970-10-01), Bartnik et al.
patent: 3549527 (1970-12-01), Peck et al.
patent: 3697420 (1972-10-01), Blaisdell et al.
patent: 3890224 (1975-06-01), Weiss et al.
patent: 4081365 (1978-03-01), White et al.
Canadian Mining and Met. Bull. 3-1969, 263-266 "Chemical Magnetic Flocculatior Process", Bartnik et al.
Iron & Steel Engineer, 10-1969, pp. 79-83, Peck et al.
JAWWA, 6-76, pp. 325-327, "High Gradient Magnetic Separation" deLatour et al.
JAWWA, 8 and 9-1976 pp. 443-446 and 498-500 respectively, deLatour et al.
Chem. Engineering, Jul. 1975, p. 56, "Suspended Solids Separator Swiftly Solves Clarity Woes (New Products & Services Item)".

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