Due to the high organic load and the high water content, organic food waste is the highest putrescible fraction of Solid Waste. The high putrefaction potential of this waste fraction forces organic food waste to be managed carefully (e.g. by providing almost daily collection) in order to avoid the generation of odours and leachate.

Organic food waste is thus a valuable resource for biomethanisation, which is often ‘wasted’ due to scarce efficiency in collection.

On the other side, the sewerage system appears to be an opportunity for conveying the organic food waste, preliminarily grounded through food waste disposers, to district Waste Water Treatment Plants (WWTPs) for anaerobic co-digestion, thereby increasing the production of biogas.