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Anaërobic biological treatment

Anaërobic biological treatment

In contrast to aerobic biological treatment, the anaerobic decomposition of biologically degradable substances takes place under low-oxygen / oxygen-free conditions. Besides carbon dioxide and biomass, the bacteria also convert the decomposable substances into methane. Moreover, under anaerobic conditions it is also possible to break down nitrogen in the form of nitrate into nitrogen gas.

Another important feature is that during an anaerobic process less sludge but then much more (bio)gas is released than during an aerobic process.

The anaerobic process takes place in sealed bioreactors with facilities that convey away the biogas produced during the process.