Method for anaerobic treatment of high strength liquors

Details Method for anaerobic treatment of high strength liquors Method for anaerobic treatment of high strength liquors

C - Chemistry, Metallurgy

02

F

362/3

C02F 3/28 (2006.01) C02F 1/28 (2006.01) C02F 3/10 (2006.01) C02F 11/08 (2006.01)

Patent

CA 1289275

METHOD FOR ANAEROBIC TREATMENT OF HIGH STRENGTH LIQUORS XXXXXXXXXXXXXXXXXXXX ABSTRACT A process for treating high strength BOD containing liquors includes the step of mildly mixing and contacting the liquors with anaerobic bacteria and a powdered adsorbent support medium to remove a substantial portion of the organic matter and generate a methane fuel gas. Use of the powdered support medium at 0.1 - 20 g/l enables high removal of BOD in short treatment times, rapid clarification of treated liquors, and increased adsorbability of liquor color. In a subsequent decolorizing embodiment, digested and clarified liquors are contacted with reduced concentrations of powdered color adsorbent to produce a treated liquor low in dissolved organic matter and color. The spent streams of powdered adsorbent support medium - biomass and/or powdered color adsorbent are preferably regenerated and reused. XXXXXXXXXXXXXXXXXXXX

515266

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