Liquid purification or separation – Processes – Making an insoluble substance or accreting suspended...
Patent
1988-07-25
1989-09-19
Hruskoci, Peter
Liquid purification or separation
Processes
Making an insoluble substance or accreting suspended...
210745, 210783, 210 86, 210104, 210203, 210330, 210401, 210744, B01D 3322
Patent
active
048678864
ABSTRACT:
The flow of waste water sludge flocculant to a dewatering system is regulated by a surface proximity sensor located downstream of the flocculant addition point. Depth, variability and continuity of a partially drained sludge mat are evaluated by a depth sensor signal processor/analyzer. Signal characteristics representative of an optimally flocculated sludge mat are referenced by the processor/analyzer to establish high and low control set-point values. A variable speed flocculant supply pump or flow control valve is adjusted in response to an operational signal from the depth sensor which exceeds the set-point range.
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Hruskoci Peter
Marcontell W. A.
Schmalz R. L.
Upton Christopher
Westvaco Corporation
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