Life cycle assessment of different municipal solid waste management options: a case study of Algiers (Algeria)

This paper examines four strategies of municipal solid waste management (MSWM) for Algiers city using life cycle assessment methodology. Analyzed options include the current WM landfilling system (SC1), landfilling with biogas recovery (SC2), anaerobic digestion (SC3), and anaerobic digestion with e...

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Bibliographic Details
Published in:Journal of material cycles and waste management 2023-03, Vol.25 (2), p.954-969
Main Authors: Zibouche, Sadia, Amouri, Mohammed, Bouarab, Rabah
Format: Article
Language:English
Subjects:
Anaerobic digestion
Biogas
Carbon dioxide
Civil Engineering
Diesel engines
Diesel fuels
Electricity
Emissions
Energy recovery
Engineering
Environmental impact
Environmental Management
Eutrophication
Fossil fuels
Landfills
Life cycle analysis
Life cycle assessment
Life cycles
Municipal solid waste
Municipal waste management
Original Article
Parameter sensitivity
Refuse as fuel
Sensitivity analysis
Solid waste management
Solid wastes
Toxicity
Waste management
Waste Management/Waste Technology
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Summary:This paper examines four strategies of municipal solid waste management (MSWM) for Algiers city using life cycle assessment methodology. Analyzed options include the current WM landfilling system (SC1), landfilling with biogas recovery (SC2), anaerobic digestion (SC3), and anaerobic digestion with energy recovery (SC4). Real facilities in the city provided data for the inventory and background process data were taken from Ecoinvent V3.1 of SimaPro 8.1. Scenarios were compared using ReCiPe evaluation method. Results indicate that baseline scenario produces the greatest impact due diesel emissions for transportation and biogas emitted. Meanwhile, steel used for industrial installations and engines emissions contribute negatively in anaerobic digestion scenarios. Furthermore, AD scenarios shows significant improvement in all impact categories except eutrophication, toxicity and human health, which is due to high NO x and CO emissions from the biogas engine. The SC4 scenario achieved the least environmental impact where it eliminates 403.06 kg CO 2 eq/t waste, saves fossil fuels with a net avoidance of 18.2 PJ/t waste, and electricity generation of 280 GWh el /year, covering 6% of the city electricity needs. The sensitivity analysis revealed that the variation of parameters do not alter the ranking order of scenarios affirming the reliability of results. Graphical abstract
ISSN:1438-4957
1611-8227
DOI:10.1007/s10163-022-01576-6