Liquid purification or separation – Processes – Chemical treatment
Patent
1986-04-14
1987-09-22
Sever, Frank
Liquid purification or separation
Processes
Chemical treatment
210806, 210808, 210130, 210201, 210207, 2102212, 210533, 210540, C02F 178
Patent
active
046953884
ABSTRACT:
The present invention relates to an apparatus for use in a sewage sludge treatment system comprising a hyperbaric vessel including sludge inlet means for conveying sludge to the vessel to be accumulated in a lower portion of the vessel, a sludge delivery means having a discharge end for delivering sludge particles from the lower portion to an upper portion of the vessel, oxygen inlet means for delivering oxygen to the upper portion of the vessel to oxygenate the sludge particles at a hyperatmospheric pressure therein, the oxygenated particles falling to and being collected in the lower portion of the vessel, gas outlet means for removing gas from the upper portion of the vessel, a sludge outlet means for rapidly removing the oxygenated sludge from the lower portion of the vessel using the pressurized oxygen as a propellant, the sludge outlet means comprising a discharge pipe connected to the lower portion of the vessel for conducting sludge to a separation apparatus, and a rapidly opening valve means controlling flow of the oxygenated sludge through the discharge pipe.
REFERENCES:
patent: 3444076 (1969-05-01), Sekikawa et al.
Long Enterprises, Inc.
Sever Frank
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