Waste treatment process employing oxidation

A process for treatment of waste comprising the steps of:

• (a) feeding said waste to an AAD vessel and subjecting said waste to biological digestion in said AAD vessel so as to produce a first biomass and a first decant therein;
• (b) feeding said first decant from said AAD vessel to an ATAD reactor and subjecting said first decant to biological digestion in said ATAD reactor so as to convert at least a portion of said organic waste therein and produce a second biomass containing unconverted organic material and second decant therein;
• (c) contacting at least a portion of said second biomass with a chemical oxidation agent, so that said chemical oxidation agent is solely responsible for the oxidation of said unconverted organic material from said ATAD reactor and produce an oxidized effluent therein;
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• (d) returning said oxidized effluent to said AAD vessel.

A process for the treatment of organic waste comprising the steps of:

• (a) feeding said organic waste to an ATAD reactor and subjecting said organic waste to biological digestion in said ATAD reactor, so as to convert at least a portion of said organic waste therein and produce a biomass containing unconverted organic material and a clear decant therein;
• (b) chemically oxidizing at least a portion of said biomass by means of a chemical oxidation process selected from the group consisting of treatment with hydrogen peroxide, ozonization, treatment with dichromates or permanganates, and wet air oxidation at elevated temperatures and pressures, so as to oxidize at least a portion of said unconverted organic material from said ATAD reactor and produce an oxidized effluent therein;
• and
• (c) returning said oxidized effluent to said ATAD reactor.