Liquid purification or separation – Processes – Separating
Patent
1994-09-23
1997-01-21
Spear, Frank
Liquid purification or separation
Processes
Separating
210777, B01D 3702
Patent
active
055956670
ABSTRACT:
Disclosed is a filter aid or medium and a method of filtering liquid wastes having good filtration, good flow rates through the filter area, and heat value of the resulting filter cake containing the filtered solids of at least 5000 Btu per pound of filter aid. The filter aid comprises rubber particle sizes effective to filter solids of different sizes from the liquid, generally in a size range of from about 5 mesh to 325 mesh, alone or with up to about 70% silicious particles. Preferably a wetting agent is used for the filtration especially for water-based liquids.
REFERENCES:
patent: 3978199 (1976-08-01), Maruhnic et al.
patent: 3996131 (1976-12-01), Conn
patent: 5106510 (1992-04-01), Rieber
enviroGuard, Inc.
Spear Frank
Weiler James F.
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