oa Civil Engineering = Siviele Ingenieurswese - Wastewater to energy-reducing carbon footprint : water engineering

Volume 20, Issue 5
  • ISSN : 1021-2000



Practices of discharging high COD (Chemical Oxygen Demand) wastewater into municipal and other water sources, and the sustained high CO emissions into the atmosphere, are in discord with the drive to reduce our carbon footprint. Anaerobic wastewater treatment is an effective method of generating energy (methane) from high COD wastewater. This can significantly reduce the carbon footprint of industrial, food processing and chemical plants in two ways. Firstly by partly substituting external energy inputs, and secondly by reducing the energy consumption of the treatment process itself, since anaerobic treatment is far less energy intensive than the equivalent aerobic treatment.

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