C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/54
C02F 1/00 (2006.01)
Patent
CA 1087330
WASTE TREATMENT PROCESS ABSTRACT A process for dewatering aqueous waste sludges containing suspended, organic matter which involves the sequential steps of treating the sludge with lime, neu- tralizing with an acid and filtering under pressure. Solids contents of the filter cake in the range of 60-70 weight percent can easily be obtained at relatively mod- erate pressures of 10-12 atmospheres. --i--
273335
Allan John L. H.
Lachenmayer John J.
Dart Industries Inc.
Gowling Lafleur Henderson Llp
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