Assessing recycling versus incineration of key materials in municipal waste: The importance of efficient energy recovery and transport distances

Journal Article · Tue May 15 00:00:00 EDT 2012 · Waste Management

DOI:https://doi.org/10.1016/j.wasman.2011.12.025· OSTI ID:21612978

Merrild, Hanna ^[1]; Christensen, Thomas H ^[1]

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1. Department of Environmental Engineering, Technical University of Denmark, Miljoevej, Building 113, DK-2800 Kongens Lyngby (Denmark)

Highlights: Black-Right-Pointing-Pointer We model the environmental impact of recycling and incineration of household waste. Black-Right-Pointing-Pointer Recycling of paper, glass, steel and aluminium is better than incineration. Black-Right-Pointing-Pointer Recycling and incineration of cardboard and plastic can be equally good alternatives. Black-Right-Pointing-Pointer Recyclables can be transported long distances and still have environmental benefits. Black-Right-Pointing-Pointer Paper has a higher environmental benefit than recyclables found in smaller amounts. - Abstract: Recycling of materials from municipal solid waste is commonly considered to be superior to any other waste treatment alternative. For the material fractions with a significant energy content this might not be the case if the treatment alternative is a waste-to-energy plant with high energy recovery rates. The environmental impacts from recycling and from incineration of six material fractions in household waste have been compared through life cycle assessment assuming high-performance technologies for material recycling as well as for waste incineration. The results showed that there are environmental benefits when recycling paper, glass, steel and aluminium instead of incinerating it. For cardboard and plastic the results were more unclear, depending on the level of energy recovery at the incineration plant, the system boundaries chosen and which impact category was in focus. Further, the environmental impact potentials from collection, pre-treatment and transport was compared to the environmental benefit from recycling and this showed that with the right means of transport, recyclables can in most cases be transported long distances. However, the results also showed that recycling of some of the material fractions can only contribute marginally in improving the overall waste management system taking into consideration their limited content in average Danish household waste.

• OSTI ID: 21612978
• Journal Information: Waste Management, Journal Name: Waste Management Journal Issue: 5 Vol. 32; ISSN WAMAE2; ISSN 0956-053X
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
ALLOYS
ALUMINIUM
CARBON ADDITIONS
CHEMICAL REACTIONS
COMBUSTION
ELEMENTS
ENERGY RECOVERY
ENVIRONMENTAL IMPACTS
GLASS
INCINERATORS
IRON ALLOYS
IRON BASE ALLOYS
LIFE CYCLE ASSESSMENT
MANAGEMENT
MATERIALS
METALS
MUNICIPAL WASTES
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OXIDATION
PERFORMANCE
PETROCHEMICALS
PETROLEUM PRODUCTS
PLASTICS
POLYMERS
PROCESSING
RECYCLING
SOLID WASTES
STEELS
SYNTHETIC MATERIALS
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT ALLOYS
WASTE MANAGEMENT
WASTE PROCESSING
WASTES