Process for the treatment of waste.

摘要

A method for treating organic waste having a liquid component and a solid component, which comprises the steps of: weighting the organic waste with ash to accelerate sedimentation of the weighted organic waste; separating the weighted organic waste to isolate the liquid component from the solid component; chemically reacting the solid component to substantially lower the oxygen demand of the solid component and to produce a liquid effluent and an ash, a portion of the ash being used in the weighting step to weight the organic waste; de-ammoniating the liquid component to form a de-ammoniated liquid stream; combining the liquid effluent with the de-ammoniated liquid stream to form a combined liquid stream; and contacting the combined liquid stream with biologically active microbes to lower the oxygen demand of the combined liquid stream. A method for processing waste containing organic matter which includes the wet oxidation of the waste to produce an ash having a first COD level, which comprises the steps of: combining the ash with the waste to form an ash-weighted waste; separating the ash-weighted waste into a liquid portion and a solid portion; and oxidizing the solid portion in a wet oxidation reaction such that the first COD level of the ash is reduced to a second COD level.