Liquid purification or separation – Processes – Separating
Patent
1993-09-14
1994-09-27
Upton, Christopher
Liquid purification or separation
Processes
Separating
210806, 210109, 210259, 210540, 210DIG5, C02F 140
Patent
active
053505271
ABSTRACT:
A system and a process for separating impurities such as grease, fuels and solid particulate matter, from water contaminated therewith, comprising passing the water to be treated through a first cleanable strainer bag assembly for filtering solids, a holding/settling tank for separation of an oily and water phase and for precipitation of solids, a second cleanable strainer bag assembly having at least one strainer bag of a porosity finer than the porosity of the strainer bag of said first cleanable strainer bag assembly, a heavy oil gravity separator, a light oil coalescer, a further oil and petrochemical and very fine solid separator with a replaceable polypropylene element for adsorbing or absorbing oil and filtering solids, and preferably also a carbon filter assembly. The invention makes possible the economical removal of impurities and the reclaiming of water with a residual impurities level of less than 5 parts per million. The invention is particularly suitable for reclamation of water in an industrial environment.
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patent: 3965004 (1976-06-01), Garber
patent: 3977975 (1976-08-01), Geurtsen
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patent: 4139463 (1979-02-01), Murphy et al.
patent: 4151087 (1979-04-01), Sakagachi
patent: 4315822 (1982-02-01), Jaisinghani
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