Esa Salminen

TL;DR: The potential of anaerobic digestion for material recovery and energy production from poultry slaughtering by-products and wastes and the current experience of the anaerobia digestion treatment of these materials are reviewed.

TL;DR: The results show that on a continuous basis under the studied conditions and with a loading of up to 0.8 kg VS/m3 d metric ton (wet weight) of the studied waste mixture could yield up to 140 m3 of methane.

TL;DR: Modelling results suggest that inhibited propionate degradation by long-chain fatty acids (LCFA) and inhibited hydrolysis by a high propionates concentration constituted the rate-limiting step in the waste degradation.

TL;DR: Investigation of the suitability of anaerobically digested poultry slaughterhouse waste for fertiliser in agriculture and the effect of aerobic post-treatment on the properties of the digested material found the material appeared to be rich in nitrogen.

TL;DR: Based on the present results, anaerobic digestion of the studied poultry slaughtering residues appears a promising possibility because of the high methane yield and nitrogen content of these residues, whereas pre‐treatments were shown to improve the methane production of feather.