1. bookVolume 62 (2011): Issue 3 (September 2011)
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26 Mar 2007
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access type Open Access

High-Risk Biodegradable Waste Processing By Alkaline Hydrolysis

Journal Details
License
Format
Journal
First Published
26 Mar 2007
Publication timeframe
4 times per year
Languages
English
High-Risk Biodegradable Waste Processing By Alkaline Hydrolysis

Biodegradable waste is by definition degraded by other living organisms. Every day, meat industry produces large amounts of a specific type of biodegradable waste called slaughterhouse waste. Traditionally in Europe, this waste is recycled in rendering plants which produce meat and bone meal and fat. However, feeding animals with meat and bone meal has been banned since the outbreaks of bovine spongiform encephalopathy (BSE). In consequence, new slaughterhouse waste processing technologies have been developed, and animal wastes have now been used for energy production. Certain parts of this waste, such as brains and spinal cord, are deemed high-risk substances, because they may be infected with prions. Their treatment is therefore possible only in strictly controlled conditions. One of the methods which seems to bear acceptable health risk is alkaline hydrolysis. This paper presents the results of an alkaline hydrolysis efficiency study. It also proposes reuse of the obtained material as organic fertiliser, as is suggested by the analytical comparison between meat and bone meal and hydrolysate.

Keywords

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