Biotechnology and Waste
Waste represents one of the three key inter-vention points for the
potential use of environmental biotechnology. Moreover, in many ways this
particular area of application epitomises much of the whole field, since the
management of waste is fundamentally unglamorous, typically funded on a
distinctly limited budget and has traditionally been viewed as a nec-essary
inconvenience. However, as the price of customary disposal or treatment options
has risen, and ever more stringent legislation been imposed, alternative
technologies have become increasingly attractive in the light of their greater
rel-ative cost-effectiveness. Nowhere has this shift of emphasis been more
apparent than in the sphere of biological waste treatment.
With all of environmental
biotechnology it is a self-evident truism that what-ever is to be treated must
be susceptible to biological action and hence the word ‘biowaste’ has been
coined to distinguish the generic forms of organic-origin refuse which meet
this criterion, from waste in the wider sense, which does not. This approach
also removes much of the confusion which has, historically, dogged the issue,
since the material has been variously labelled putrescible, green,yard, food or even just organic waste, at certain times and by differing authors,over the
years. By accepting the single term biowaste
to cover all such refuse, the difficulties produced by regionally, or
nationally, accepted criteria for waste categorisation are largely obviated and
the material can be viewed purely in terms of its ease of biodegradability.
Hence a more process-based perspective emerges, which is often of considerably
greater relevance to the practical concerns of actu-ally utilising
biotechnology than a straightforward consideration of the particular origins of
the waste itself.
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