3.8 Benefits and Limitations - Humanitarian Sanitation Hub

3.8 Benefits and Limitations

The various benefits and limitations of aerobic digestion are presented in the following table.

Benefits
Limitations 
The end product produced by this method is biologically stable and odourlessThe process requires a constant source of electricity and has a high energy consumption
This method does not release unpleasant odours. – It achieves higher rates of destruction of organic solidsDigested solids have poor mechanical dewatering characteristics
It requires less volume and retention time than anaerobic digestionThe process is significantly influenced by different factors such as temperature, solid concentration, and type of mixing
This method can be adjusted as per specific discharge limitsThe design and operation of the process require skilled personnel, and some parts and materials may not be locally available
If the temperature is controlled to reach above 55oC, it offers a high reduction of pathogens (up to 99%)The process must include a thickening operation
Non-oxygen-aerated systems require highly efficient aeration
The process is prone to complicated chemical and microbiological issues
Benefits and Limitations of Aerobic Digestion
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