Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1979-07-09
1980-08-12
Therkorn, Ernest G.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 14, 210 15, 210170, 2101953, 210220, 166267, 261 77, 261123, 261DIG75, C02C 106
Patent
active
042172110
ABSTRACT:
A sewage treatment process wherein sewage is passed into a deep subterranean shaft is improved by passing a liquor of the sewage into the subterranean shaft through an inner shaft which extends only partway down into the subterranean shaft. Located at the lower proximity of the inner shaft is a mixing shaft. The mixing shaft extends from the lower end of the inner shaft to a point near the bottom of the subterranean shaft. Incorporated into the mixing shaft are a plurality of liquor mixing nozzles. The descending sewage liquor passes downwardly through the mixing nozzles to the bottom of the subterranean shaft. It then ascends upwardly in the subterranean shaft. The action of the descending liquor through the nozzles entrains ascending liquor from the subterranean shaft back into the descending liquor. This recirculates the liquor in the bottom of the shaft allowing for extended contact time of the liquor with the microorganisms used in the liquor to aerobically digest the sewage.
REFERENCES:
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patent: 3607735 (1971-09-01), Hover
patent: 3655343 (1972-04-01), Galeano
patent: 3780997 (1973-12-01), Hargraves
patent: 4115258 (1978-09-01), Smith
"Breakthrough in Sewage Treatment-Cash, Land, and Energy Level," Water Services, Apr. 1975, 132, 140.
"Large Diameter Drilled Holes Offer New Design Options," Consulting Engineer, Nov. 1977, pp. 128-131.
Bradley, "The ICI Deep Shaft Aeration Process for Effluent Treatment," 29th Annual Atlantic Canada Section, AWWA Meeting, 1976.
"Oxygenation of Aqueous Wastes: The Prost System," Chemical Engineer, Jun. 20, 1977, pp. 117-120.
BioMass Fuel Conversion Associates, Inc.
Boswell K. H.
O'Brian Edward D.
Therkorn Ernest G.
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