Liquid purification or separation – Automatic control – Container movement operated
Patent
1991-06-12
1992-09-22
Dawson, Robert A.
Liquid purification or separation
Automatic control
Container movement operated
210205, 210219, 210248, 210400, 366237, 366238, 366601, B01D 33048, B01F 1100
Patent
active
051494230
ABSTRACT:
An apparatus for purifying waste water by precipitating out foreign material as solids and separating the solids from the purified water comprising a rotatable semi-cylindrical open container and a band filter beneath the container for receiving the contents of the container and separating the precipitated solids from the purified water. As the container slowly rotates, the contents spill over the edge of the container onto the moving band filter. The purified water is recovered in a filtrate container beneath the filter while the solids are discharged to waste from the end of the band filter. A microprocessor controls the sequence of operations, including the rotation of the container, the stirring mechanism, the feeding of the precipitation agent and the duration of stirring.
REFERENCES:
patent: 3156536 (1964-11-01), Desbois
patent: 4308139 (1981-12-01), Piepho
patent: 4865724 (1989-09-01), Brandt et al.
Dawson Robert A.
Drodge Joseph
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