Process for the treatment of waste material suspensions

Details Process for the treatment of waste material suspensions Process for the treatment of waste material suspensions

1996-09-19

1998-03-31

Hruskoci, Peter A.

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

162189, 162190, 210716, 210717, 210726, 210928, C02F 152

Patent

active

057334617

ABSTRACT:
There is disclosed a process for separating fine solids from water in the used water recovery system of a sheet forming mill, wherein the used water recovery system includes at least one stage in which an alkaline earth metal carbonate is precipitated in the aqueous suspension constituting the used water whereby the particulate material present in the used water becomes entrained in the alkaline earth metal carbonate precipitate. By the invention it is possible to recover the water and the fine solid materials which pass through the wire mesh belt of a paper or board forming machine, and optionally recycle those recovered materials.

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patent: 5558782 (1996-09-01), Bleakley et al.
Murray, H.H. (ed.), 1996, TAPPI Monograph Series No. 30 "Paper Coating Pigments", pp. 34-35.

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