Anaerobic Digestion is a process carried out by bacteria in the absence of oxygen. The process produces substantially less sludge than aerobic treatment and converts organic matter to energy-rich biogas which can be used as a fuel.

Its principal application is in the digestion of sewage sludge but many industrial wastes (solid & liquid) are suited to treatment by anaerobic digestion.

Anaerobic treatment has been applied to a wide variety of solid and liquid organic wastes, including waste from food and beverage production (sugar, soft-drink, potato, vegetable, distillery and brewery wastes), meat, dairy and wool processing, and pharmaceutical and chemical industries.

The significant advantages of anaerobic processes are low energy use and reduced sludge production, generation of biogas and the ability to extract valuable fertilisers from the digested residue.

Waste Solutions employs a team of specialists with long-standing scientific and practical experience in anaerobic treatment processes. The company has extensive experience in research activities related to advances in anaerobic digestion, particularly in wastes with high fat content.

Waste Solutions blends its scientific knowledge base with process design, civil, mechanical and automation engineering skills to produce highly effective and reliable anaerobic digestion facilities.

With rising international energy costs, anaerobic digestion offers a convenient process to produce alternative and renewable energy which can be used directly as biogas to produce process heat or as a fuel source for electricity generation and vehicles.