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Biological Treatment

Biological treatment of waste water and (domestic) sewage water is used to lower the organic load of soluted organic compounds. There are two main catagories:

  • Aerobic treatment

  • Anaerobic treatment

The organic load is defined by the Biological Oxygen Demand (BOD).

In aerobic systems the water is aerated with compressed air (in some cases oxygen). Anaerobic systems run under oxygen free conditions.

biological water treatment plant

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