Biosolids Management (Anaerobic Digestion)
Anaerobic digestion is the process for the reduction of sludge without the use of air or elemental oxygen. In anaerobic digestion, organic pollutants are converted by anaerobic micro-organisms to a gaseous product (including methane gas) that has the potential for reuse. It is a very low energy process, that produces a fraction of the waste sludge generated through aerobic biological processes. It is particularly recommended for treating wastewater which is high in soluble BOD and/or COD.