ABSTRACT
The character and relative purity of the material entering the biological treatment, has enormous bearing on the final product derived, irrespective of the process itself. In many respects, this is of significant advantage in the construction of a biowaste treatment plan. There are a variety of potential constraints on biowaste initiatives which can often act as limiting factors on the instigation and development of biological waste treatment. Of all the intrinsic factors, the single most important is that the technology being considered must be capable of dealing with the specific type of biowaste available. The first and most obvious economic influence on the biotechnology selection, as well as on the viability of the entire project itself, is the requirement of the local market. Biological waste treatment must be looked on as an essentially commercial activity and, consequently, it occupies a world governed by the Best Practicable Environmental Option (BPEO) and the Best Available Techniques.
