Agriculture Reference
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potential, vary greatly among various waste types, depending on their
contents of fatty compounds. Thus an unambiguous correlation between
waste ratio and gas yields cannot be derived from Table 12.1.
6. WASTE TREATMENT COSTS
Originally, the Danish centralised biogas concept was only designed for
manure treatment. In Europe and worldwide, however, waste treatment is
the main focus of interest in biogas and anaerobic digestion. It has become
evident that the Danish concept is also well suited as a waste recycling
facility, if a sanitation step included and monitoring procedures are
adapted.
In (Hjort-Gregersen 1999) the waste treatment costs in a centralised
biogas plant were calculated. In Danish centralised plants manure is as
mentioned codigested with various organic waste types. From these
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