Comparing urban solid waste recycling from the viewpoint of urban metabolism based on physical input-output model: A case of Suzhou in China

Journal Article · Sat Jan 14 23:00:00 EST 2012 · Waste Management

DOI:https://doi.org/10.1016/j.wasman.2011.08.018· OSTI ID:21612937

Highlights: Black-Right-Pointing-Pointer Impacts of solid waste recycling on Suzhou's urban metabolism in 2015 are analyzed. Black-Right-Pointing-Pointer Sludge recycling for biogas is regarded as an accepted method. Black-Right-Pointing-Pointer Technical levels of reusing scrap tires and food wastes should be improved. Black-Right-Pointing-Pointer Other fly ash utilization methods should be exploited. Black-Right-Pointing-Pointer Secondary wastes from reusing food wastes and sludge should be concerned. - Abstract: Investigating impacts of urban solid waste recycling on urban metabolism contributes to sustainable urban solid waste management and urban sustainability. Using a physical input-output model and scenario analysis, urban metabolism of Suzhou in 2015 is predicted and impacts of four categories of solid waste recycling on urban metabolism are illustrated: scrap tire recycling, food waste recycling, fly ash recycling and sludge recycling. Sludge recycling has positive effects on reducing all material flows. Thus, sludge recycling for biogas is regarded as an accepted method. Moreover, technical levels of scrap tire recycling and food waste recycling should be improved to produce positive effects on reducing more material flows. Fly ash recycling for cement production has negative effects on reducing all material flows except solid wastes. Thus, other fly ash utilization methods should be exploited. In addition, the utilization and treatment of secondary wastes from food waste recycling and sludge recycling should be concerned.

• OSTI ID: 21612937
• Journal Information: Waste Management, Journal Name: Waste Management Journal Issue: 1 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
54 ENVIRONMENTAL SCIENCES
AEROSOL WASTES
ALKANES
ASHES
ASIA
BUILDING MATERIALS
CEMENTS
CHINA
COMBUSTION PRODUCTS
ECOLOGY
FLY ASH
FOOD
HYDROCARBONS
MANAGEMENT
MATERIALS
METABOLISM
METHANE
ORGANIC COMPOUNDS
RECYCLING
RESIDUES
SCRAP
SLUDGES
SOLID WASTES
TIRES
URBAN AREAS
WASTE MANAGEMENT
WASTES