Liquid purification or separation – Processes – Chemical treatment
Patent
1992-11-03
1993-07-20
Silverman, Stanley S.
Liquid purification or separation
Processes
Chemical treatment
210764, 210916, C02F 1114
Patent
active
052290115
ABSTRACT:
A process for pathogen reduction in waste where dewatered sludge having a solids content in the range of 10-60% is mixed with an additive selected from the group consisting of calcium oxide or calcium carbonate group. Hydration to calcium hydroxide occurs with an attendant release of heat. The pH of the sludge is then elevated and the heat of the hydration reaction is retained resulting in effective neutralization of pathogens.
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Christy Paul G.
Christy, Sr. Robert W.
McCarthy Neil M.
Silverman Stanley S.
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