초록 ▼

The invention provides a process for treating a sulfide-containing alkaline aqueous effluent, which includes subjecting it to a wet air oxidation treatment which oxidizes sulfide ions to environmentally acceptable sulfur acid ions, the oxidation being carried out in two or more chambers connected in

The invention provides a process for treating a sulfide-containing alkaline aqueous effluent, which includes subjecting it to a wet air oxidation treatment which oxidizes sulfide ions to environmentally acceptable sulfur acid ions, the oxidation being carried out in two or more chambers connected in series, flow of effluent between the chambers being effected at least primarily by gravity such that the pressures in the respective chambers can be maintained at substantially the same value.

대표청구항 ▼

[ I claim:] [1.] A process for treating a sulfide-containing alkaline aqueous effluent, which comprises subjecting it to a wet air oxidation treatment which oxidizes sulfide ions to environmentally acceptable sulfur acid ions, the oxidation being carried out in two or more chambers connected in seri

[ I claim:] [1.] A process for treating a sulfide-containing alkaline aqueous effluent, which comprises subjecting it to a wet air oxidation treatment which oxidizes sulfide ions to environmentally acceptable sulfur acid ions, the oxidation being carried out in two or more chambers connected in series, flow of effluent between the chambers being effected at least primarily by gravity such that the pressures in the respective chambers are maintained at substantially the same value.