The anaerobic digestion process operates in the absence of oxygen to transform some organic material in the sludge to gases such as methane and carbon dioxide. A reduction of the quantity of solids and pathogenic organisms is also achieved. Several advantages of anaerobic digestion are the generation of methane gas as a source of usable energy, up to 60% destruction of volatile solids and produces a stable Class B product suitable for agricultural use.

Siemens is known for its capability to provide a full scope of anaerobic digestion process equipment, in addition to design and system sizing expertise.  Product offerings include hydraulic and confined gas mixing systems, heaters and heat exchangers, steel floating covers, steel gasholder covers, steel fixed covers, turnkey provision of dual membrane gas storage systems, and gas handling and safety equipment.

Anaerobic Digestion Technologies for Your Sludge and Biosolids Treatment Applications:
Sludge and Biosolids Processing Treatment Systems
Digesters, Mixinig and Gas Storage