oa Civil Engineering = Siviele Ingenieurswese - Wastewater to energy-reducing carbon footprint : water engineering
|Article Title||Wastewater to energy-reducing carbon footprint : water engineering|
|© Publisher:||South African Institution Of Civil Engineering (SAICE)|
|Journal||Civil Engineering = Siviele Ingenieurswese|
|Affiliations||1 Prentec (Pty) Ltd and 2 Prentec (Pty) Ltd|
|Publication Date||May 1978|
|Pages||30 - 34|
Practices of discharging high COD (Chemical Oxygen Demand) wastewater into municipal and other water sources, and the sustained high CO2 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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