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Eco-efficient post treatment of digestate from farm and collective biogas plants to improve nutrients (N&P) recycling

Publikation: KonferencebidragKonferenceabstrakt til konferenceForskning

  • Anne Trémier, IRSTEA – National Research Institute of Science and Technology for Environment and Agriculture
  • ,
  • Fabrice Béline, IRSTEA – National Research Institute of Science and Technology for Environment and Agriculture
  • ,
  • Claire Déchaux, IRSTEA – National Research Institute of Science and Technology for Environment and Agriculture
  • ,
  • Lynda Aissan, IRSTEA – National Research Institute of Science and Technology for Environment and Agriculture
  • ,
  • Mette Hjorth Mikkelsen
  • Marianne Thomsen
Anaerobic digestion (AD) of organic waste from agriculture and others sectors is a widely used technology which shows increasing implementation due to its capacity to produce renewable energy and also to reduce greenhouse gas emissions from waste management. The development of AD is also an opportunity to improve nutrient recycling from organic waste through the development of an eco-effi cient post-treatment system. In this context,
LCA was applied to evaluate the sustainability of diff erent raw digestate post-treatment technologies regarding recycling of nutrients from agricultural and organic waste to agricultural soils for decreased resource depletion and climate mitigation. Substitution of the use of N and P mineral fertilizers with recycled soil health improver or organic fertilizers products as function of fi ve diff erent post-treatment technologies and raw digestate characteristics was evaluated.
A particular attention was carried to (1) the gaseous emissions (NH3 and N2O) from process (post-treatment) but also after land spreading and (2) the carbon cycle considering the CO2 carbon costs of fertiliser production and the soil carbon sequestration benefit.
OriginalsprogEngelsk
Udgivelsesår1 okt. 2013
StatusUdgivet - 1 okt. 2013
BegivenhedSCIENCE FOR THE ENVIRONMENT: MAPPING KNOWLEDGE NEEDS FOR FUTURE HORIZONS - Århus Universitet, Århus, Danmark
Varighed: 2 okt. 20134 okt. 2013
Konferencens nummer: 2ND INTERNATIONAL CONFERENCE

Konference

KonferenceSCIENCE FOR THE ENVIRONMENT
Nummer2ND INTERNATIONAL CONFERENCE
LokationÅrhus Universitet
LandDanmark
ByÅrhus
Periode02/10/201304/10/2013

    Forskningsområder

  • LCA, digestate, post treatment, nutrient recycling, biogas plants, eco-efficiency, recycling

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