Life cycle assessment of municipal solid waste management with regard to greenhouse gas emissions: case study of Tianjin, China.

摘要: The environmental impacts of municipal solid waste (MSW) management have been highlighted in China, due to the continually increasing amount MSW being generated and limited capacity treatment facilities. Of particular interest is greenhouse gas (GHG) mitigation, aided by Kyoto Mechanisms. China an important case study for this global issue; however, analysis entire life cycle on GHG emissions not available China. This evaluates current possible patterns with regard emissions, using assessment (LCA), based Tianjin case. We assess baseline scenario, reflecting existing system, as well a set alternative scenarios, five exploring technology innovations one integrated management, quantitatively predict potentials mitigation Tianjin. Additionally, sensitivity used investigate influence landfill (LFG) collection efficiency, recycling rate methodological choice, especially allocation, outcomes. results show from Tianjin's system 467.34 Mg CO2 eq. per year, collected central districts 2006, key issue LFG released. combining different improvement options, shows highest potential. Given financial support practice Tianjin, utilization scenario would be preferred choice. approximately linear relation inverse proportion between total emissions. Kitchen composting makes considerable contribution reduction. Allocation choices result differences quantitative outcomes, but preference orders contributions are found robust, suggesting LCA can decision making.