Method for flocculating microscopic particles in suspension in a

Details Method for flocculating microscopic particles in suspension in a Method for flocculating microscopic particles in suspension in a

1983-01-27

1985-05-07

Cintins, Ivars

Liquid purification or separation

Processes

Separating

210792, 210805, B01D 2310

Patent

active

045156972

ABSTRACT:
Method for flocculating microscopic particles in suspension in a liquid and application to the collection of phytoplankton microalgae and of zooplankton and for the purification of used water.
One passes a first liquid comprising microscopic particles in suspension through a fixed granular layer (2) up to partial or complete clogging of said granular material by said microscopic particles; one unclogs at least partially said granular material in a fixed layer by passing a second liquid therethrough, moving in the same direction as the first liquid, but at a higher speed than the first; and one recovers below said layer flocculated aggregates of said microscopic particles and a liquid outflow (6).

REFERENCES:
patent: 1563849 (1925-01-01), Hartman
patent: 3737039 (1973-06-01), Hirs
patent: 4372859 (1983-02-01), Sugimoto et al.

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