Small scale chlorine dioxide plant

Details Small scale chlorine dioxide plant Small scale chlorine dioxide plant

1980-08-27

1982-12-28

Lutter, Frank W.

Chemical apparatus and process disinfecting, deodorizing, preser

Control element responsive to a sensed operating condition

Responsive to liquid level

422112, 422117, 422187, G05D 900, G05D 1000, G05B 900, B01J 800

Patent

active

043661203

ABSTRACT:
Chlorine dioxide solution for use in waste water treatment is produced in an automated small scale plant wherein sodium chlorate solution is reacted with sulphur dioxide at subatmospheric pressure by countercurrent flow in a reaction tower. Water ejectors are used to withdraw gaseous chlorine dioxide from the upper end of the tower and form therefrom chlorine dioxide solution and also to withdraw liquid effluent from the bottom of the tower for discharge. The plant is fully automated to form chlorine dioxide solution in response to inventory requirements. The chlorine dioxide-producing reaction is only permitted to operate if each of a plurality of sensed parameters is within predetermined ranges.

REFERENCES:
patent: 2598087 (1952-05-01), Wayman et al.
patent: 2710246 (1955-06-01), Marks et al.
patent: 2895801 (1959-07-01), Northgraves et al.
patent: 3627275 (1971-12-01), Gusmer
patent: 3864456 (1975-02-01), Winfield et al.
patent: 4105751 (1978-08-01), Caillol
patent: 4190620 (1980-02-01), Vanderspurt et al.

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