Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1989-04-26
1990-01-23
Hruskoci, Peter
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
175 66, 210717, 210724, 210747, 210751, 210912, B01D 2101
Patent
active
048956651
ABSTRACT:
A process for clarifying and reclaiming industrial working fluids and/or outdoor working locations such as oil and gas well working fluids and pits. A treating agent is added to the fluid in an amount exceeding its solubility therein to precipitate soluble contaminants and to form a layer of treating agent over a lower layer of sludge at the pit bottom comprising insoluble contaminants and the precipitates. The layer of treating agent compresses the sludge and serves as a filter/barrier to increase the amount of overlying clarified fluid which can be collected. Following separation of the clarified fluid for disposal or reuse, the sludge is solidified by adding a further treating agent. The process is particularly suited for use in oil and gas well exploration wherein the treating agent is a particulate material including lime.
REFERENCES:
patent: 2919898 (1960-01-01), Marwil et al.
patent: 4079003 (1978-03-01), Manchak
patent: 4343706 (1982-08-01), Etzel et al.
patent: 4755303 (1988-07-01), Sweat
patent: 4781842 (1988-11-01), Nicholson
Colelli Cam C.
Mansberry David I.
Colelli Cam C.
Hruskoci Peter
Mansberry David I.
New Gregory
Shideler Krisanne
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