Article (Scientific journals)
Environmental assessment of waste feedstock mono-dimensional and bio-refinery systems: Combining manure co-digestion and municipal waste anaerobic digestion
Moretti, Michele; Van Dael, M.; Malina, R. et al.
2018In Journal of Cleaner Production, 171, p. 954-961
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Keywords :
Anaerobic digestion; Bioenergy; Biomass; CHP; Life-cycle assessment; Carbon dioxide; Climate change; Commerce; Environmental impact; Environmental management; Eutrophication; Feedstocks; Fertilizers; Gas emissions; Life cycle; Manures; Municipal solid waste; Solid wastes; Waste disposal; Waste management; Waste treatment; Wastes; Bio-energy; Biological treatment; Combined heat and power engines; Environmental assessment; Life Cycle Assessment (LCA); Organic municipal solid wastes; Resource depletion; Waste management strategies
Abstract :
[en] Organic municipal solid waste (OMSW) as a feedstock for energy recovery and material recycling offers the potential to reduce environmental impacts from energy production while displacing emission-intensive waste management strategies such as landfills. This paper quantifies the environmental impact of anaerobic digestion of local, residual biomass. A life-cycle assessment was jointly performed for two scenarios for the biological treatment of local organic municipal solid waste and pig manure in the Netherlands. Scenario 1 was a separate treatment using anaerobic digestion, and Scenario 2 was a bio-refinery system that integrates anaerobic digestion of organic, municipal solid waste, and co-digestion of pig manure and other organic co-substrates∖. For both scenarios, electricity and heat are generated using a combined heat and power engine. The bio-refinery system (Scenario 2) contribution to climate change resulted in 0.16 Mt CO2 eq./yr, which is lower than the 0.17 Mt CO2 eq./yr of Scenario 1. Both scenarios are found to be beneficial with regard to resource depletion and human toxicity. The integration of organic waste and manure anaerobic digestion has no effect on acidification and terrestrial eutrophication impact categories, resulting in 43.59 AE eq. and 86.33 AE eq. for Scenario 1 and 43.58 AE eq. and 86.30 AE eq. for Scenario 2. Moreover, Scenario 2 yields 18% lower emissions than those from natural gas derived electricity in the Netherlands. The biorefinery system represents an opportunity to improve organic waste-management strategies, at the same time as reducing the environmental impact from energy production and the costs for surplus manure disposal by producing high-quality commodities that can be traded on the market. © 2017 Elsevier Ltd
Disciplines :
Business & economic sciences: Multidisciplinary, general & others
Author, co-author :
Moretti, Michele ;  Université de Liège - ULiège > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Modélisation et développement
Van Dael, M.;  UHasselt, Faculty of Business Economics, Centre for Environmental Sciences, Agoralaan, Diepenbeek, 3590, Belgium, VITO, Unit of Separation and Conversion Technologies, Boeretang 200, Mol, 2400, Belgium
Malina, R.;  UHasselt, Faculty of Business Economics, Centre for Environmental Sciences, Agoralaan, Diepenbeek, 3590, Belgium
Van Passel, S.;  UHasselt, Faculty of Business Economics, Centre for Environmental Sciences, Agoralaan, Diepenbeek, 3590, Belgium, Antwerp University, Faculty of Applied Economics, Department of Engineering Management, Prinsstraat 13, Antwerp, B-2000, Belgium
Language :
English
Title :
Environmental assessment of waste feedstock mono-dimensional and bio-refinery systems: Combining manure co-digestion and municipal waste anaerobic digestion
Publication date :
2018
Journal title :
Journal of Cleaner Production
ISSN :
0959-6526
eISSN :
1879-1786
Publisher :
Elsevier Ltd
Volume :
171
Pages :
954-961
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 15 October 2019

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