Sludge Pasteurization Articles & Analysis
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The process begins by gravity separation of water and FOG-containing sludge. The sludge is then pumped into dual insulated tanks that are heated to a constant temperature of 160°F for 24 hours to thermally render the fats in the sludge and bring them out of solution. The heating separates the tank contents into three distinct layers: brown ...
The thermal hydrolysis increases the production of biogas in digestion, reduces the volume needed for digestion, increases the dryness of the final dewatering of digested sludge, eliminates odors, and provides pasteurized final sludge Class A, a valuable and natural fertilizer. ...