Evaporative reduction of waste liquid

Details Evaporative reduction of waste liquid Evaporative reduction of waste liquid

1991-02-20

1993-05-04

Manoharan, Virginia

Concentrating evaporators

Gaseous blast or current

159 44, 159 473, 159901, 202154, 202206, 203 1, 203 49, 203DIG5, B01D 100, C02F 104

Patent

active

052078698

ABSTRACT:
A liquid waste reduction system uses an evaporator having two packed columns. A reservoir of the evaporator has three level sensor which monitor the fluid level in the reservoir. An input pump delivers waste liquid to the reservoir. When the fluid level has exceeded a low level, a control unit powers an output pump which pumps liquid from the base of the reservoir to an external storage unit. A distributor pump pumps liquid from the reservoir to the top of the packed columns. A blower forces air upward through the packing material to evaporate water from the liquid. When the fluid level has exceeded a high level, the control unit switches on a heating element which heats the air delivered from the blower to the second packed column, thus accelerating the evaporation process. When the fluid level has exceeded the maximum level, the control unit deactivates the input pump to prevent flooding of the evaporator unit.

REFERENCES:
patent: 3358739 (1967-12-01), Pinkerton et al.
patent: 3361649 (1968-01-01), Karter
patent: 3843463 (1974-10-01), Brown
patent: 4040973 (1977-08-01), Szivos et al.
patent: 4203837 (1980-05-01), Hoge et al.
patent: 4236974 (1980-12-01), Kuhnlein
patent: 4302424 (1981-11-01), Miyake et al.
patent: 4608175 (1986-08-01), Nuttle
patent: 5069796 (1991-12-01), Fox

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