Process for obtaining purified water from wet sludges and slurri

Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...

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210712, 210729, 210768, 210774, 44 24, 585 15, C02F 154

Patent

active

046701591

ABSTRACT:
The invention relates to a process for obtaining purified water from wet sludges and slurries of solid materials by treating these materials with a clathrate forming agent at a temperature above the freezing point of water to form a solid clathrate and dewatered solid material. The clathrate and solid material are then separated and the clathrate decomposed to give purified water and clathrate forming agent.

REFERENCES:
patent: 2974102 (1961-03-01), Williams
patent: 3058832 (1962-10-01), Glew
patent: 3126334 (1964-03-01), Harlow
patent: 3132096 (1964-05-01), Walton
patent: 3817048 (1974-06-01), Burley
patent: 4207351 (1980-06-01), Davies
patent: 4224039 (1980-09-01), Smith et al.

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