REVISTA DYNA ENERGÍA

Key words:

biofertilizantes, biogás, digestión anaerobia, purín porcino, subproductos cárnicos, valorización de residuos, animal by-products, anaerobic digestion, biofertilisers, biogas, pig manure, waste valorisation.

Article type:

ARTICULO DE INVESTIGACION / RESEARCH ARTICLE

Section:

RESEARCH ARTICLES

ABSTRACT:
Until recent days, the customary treatment of animal by-products not intended for human consumption (SANDACH from its acronym in Spanish) was directed primarily to the use of certain fractions as animal feed. However, current legislation affecting removing of SANDACH products restricts its use as animal feed for health reasons, but enables the implementation of new technologies for their treatment, opening a wide field of work for the energy recovery using anaerobic digestion and the subsequent use of the digestate as fertiliser (just in the case that a pasteurisation or sterilisation process has been previously applied depending on the category in which the original by-product is classified).
Under these circumstances, the LIFE VALPORC project (www.lifevalporc.eu) arises with the aim to demonstrate a sustainable alternative to the management of pig carcasses and manure, addressing current environmental problems derived from its management and valuing these waste streams through its transformation into biofuels and organic fertilisers, with the corresponding environmental and socio-economic added value.
The results so far show that the codigestion of meat by-products (flour and fat) with the effluents generated in the carcasses rendering process plus pig manure is a viable way and a profitable alternative to manage these waste streams.

Keywords: animal by-products, anaerobic digestion, biofertilisers, biogas, pig manure, waste valorisation.