Liquid purification or separation – Processes – Chemical treatment
Patent
1991-12-26
1993-01-12
Dawson, Robert A.
Liquid purification or separation
Processes
Chemical treatment
210688, 210749, 210758, 210774, 210805, 210903, 55 36, C02F 176, B01D 3518
Patent
active
051787768
ABSTRACT:
The treatment of biological masses to produce a solid material which can be used as an agricultural fertilizer and/or conditioner includes the subjecting of the biological mass, which is in the fluid state and is composed of a solid phase and an aqueous phase, to a combined heat and chemical treatment involving heating, acidification, and chlorinating oxidation so as to dissolve insoluble metallic and non-metallic compounds in the biological mass and transfer them from the solid phase to the aqueous phase, pasteurize the micro-organisms, disinfect the mass as regards pathogenic germs, and sterilize seeds. After this combined treatment, the solid phase is separated from the aqueous phase and recovered.
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Graziano Luigi
Morgantini Giampiero
Pellegrin Roberto
Peri Paolo
Dawson Robert A.
Fortuna Ana M.
Romfin S.R.L.
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