ABSTRACT
The paper sets out the results obtained from the treatment of animal waste products by anaerobic digestion. An initial study was also made of the production of ammonia compounds in the waste products by anaerobic digestion.
In our opinion the anaerobic process is not being optimised for animal wastes, and optimum digestion should be based on new technologies which reduce the retention time.
The combined effect of mixing the waste products from different species of animals is reported.
The effect of dehydrating the digested waste using solar energy is investigated with respect to the stability of the ammonia compounds and the reduction of odour with the aim of producing an agriculturally valuable product.
