Distillation: processes – separatory – Water purification only
Patent
1994-07-14
1996-04-30
Warden, Robert J.
Distillation: processes, separatory
Water purification only
202181, 202182, 202197, 203 1, 203 2, 203 11, 203 24, 203 26, 203DIG4, 203DIG18, B01D 310, B01D 342
Patent
active
055121420
ABSTRACT:
A process and device for purifying organically polluted waste water utilizing a primary system and a closed secondary system. The primary system includes a first heat exchanger, a second heat exchanger and a cyclone located between the two heat exchangers. The first heat exchanger evaporates the waste water into a waste water vapor and a waste water sump solution. The heat for evaporating the waste water in the first heat exchanger is obtained primarily from raw water in the secondary system. A second heat exchanger in the primary system condenses the waste water vapor and in the process causes evaporation of raw water in the secondary system. The level of waste water in the primary system is monitored as is an operational parameter in the secondary system. With the data obtained from this monitoring, the drawing off of the waste water sump solution is controlled.
REFERENCES:
patent: 2446880 (1948-08-01), Kleinschmidt
patent: 4278502 (1981-07-01), Stevens et al.
patent: 4342624 (1982-08-01), Chute
patent: 4585524 (1986-04-01), Hoiss
patent: 4770748 (1988-09-01), Cellini et al.
Carpenter Robert
Warden Robert J.
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