Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1980-10-24
1982-02-02
Adee, John
Liquid purification or separation
Processes
Ion exchange or selective sorption
210805, 210170, 2101951, 210196, 210919, C02C 500
Patent
active
043138330
ABSTRACT:
An improved process and a system for waste water treatment are disclosed which are particularly suited for use in industrial plants (10) having existing drainage trench networks (108-128) through which normal plant effluents, component leakage and accidental spills ordinarily would be allowed to flow. The trench system is connected to a waste water treatment facility (FIG. 1) designed to remove impurities from the effluents and return acceptably clean water to the plant for reuse or discharge it to the environment. Because some plant effluents, component leaks and unexpected spillages can increase the concentration of impurities in the waste water to levels beyond the design limits of the waste water treatment system, a series of dams (138-144, 150-154, 162-176) are provided at locations throughout the trench network so that effluents having rather high ranges of concentration of impurities are held behind the dams. Effluents having relatively low ranges of concentration are directed into isolated trenches (108) or a pipe network (178, 180) located in the trenches, the pipes then being led through sealed apertures in the dams to discharge to the waste water treatment system. The highly concentrated effluents are periodically pumped (148, 192) from behind the dams and discharged to a portion (76-106) of the waste water treatment system in which their impurities are concentrated for disposal in solid form.
REFERENCES:
patent: 3592743 (1971-07-01), Chapman et al.
patent: 3850807 (1974-11-01), Jones
patent: 4165289 (1979-08-01), Borst
patent: 4170554 (1979-10-01), Freshcorn
Adee John
General Electric Company
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