Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1972-03-24
1977-10-18
Spear, Jr., Frank A.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 62, 210199, 424148, C11D 754
Patent
active
040545180
ABSTRACT:
Apparatus and methods for sanitizing sewage effluent comprising supporting a plurality of solid members in a conduit in fluid-flow intercepting relationship to sewage effluent flowing therethrough, the said solid members being soluble in the effluent to release a bactericidal agent at a relatively constant rate at least in part as a function of the mass rate of effluent flow thereover and the surface area of said members exposed to effluent flow, the said solid members being supported in the conduit by means such as a rack in which the solid members are positioned generally in a row extending along the path of effluent flow, each solid member extending across a substantial portion of the flow-responsive, varying depth of effluent in the conduit such that the surface area of said member exposed to effluent flow is at least in part a function of the mass-rate of effluent flow in the conduit such that the quantity of bactericidal agent released varies at least in part as a function of the mass rate of effluent flow through the conduit, the said solid members consisting essentially of compacted trichloroisocyanuric acid and an additive selected from the group consisting of boric acid and calcium stearate, the additive appearing in quantities relative to the trichloroisocyanuric acid just sufficient to generate a relatively constant release of available chlorine over a desired period of time.
REFERENCES:
patent: 2792345 (1957-05-01), Hulsebosch et al.
patent: 3164524 (1965-01-01), Fand et al.
patent: 3296069 (1967-01-01), Kowalski
patent: 3488420 (1970-01-01), Keast et al.
patent: 3749672 (1973-07-01), Golton et al.
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