The second is one wherein manure is anaerobically-digested to create biogas and then burnt to offset coal.
Triple oxidation ditch was used to treat anaerobically digested effluent of piggery wastewater.
The prospects of biogas is extremely broad, but the further treatment of anaerobically digested effluent hampers its development.
The EPA estimates that if 50 percent of this food waste were anaerobically digested, it could generate enough electricity to power more than 2.5 million homes for one year.
In this experimint, fresh poultry litter or distiller's grain mixed with corn straw at the ratio of 10%, 20% and 30% were fermented anaerobically for one month.
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