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Urban solid waste management in Chongqing: challenges and opportunities
Yuan Hui1, Wang Li'ao, Su Fenwei
1Department of Resource and Environmental Science, Chongqing University, Chongqing 400044, China. yandyson@163.com
Waste Management (New York, N.Y.)
|November 18, 2005
Summary
Chongqing
Area of Science:
- Environmental Science
- Urban Planning
- Waste Management
Background:
- China faces sustainable development challenges due to resource supply and protection issues.
- Municipal solid waste (MSW) management is crucial for improving environmental performance and resource conservation.
- Urban Chongqing, a major Chinese municipality, presents a case study for MSW challenges.
Purpose of the Study:
- To examine municipal solid waste (MSW) management in urban Chongqing.
- To analyze the quantity, composition, and disposal methods of MSW in Chongqing.
- To identify challenges and opportunities for improving Chongqing's MSW system.
Main Methods:
- Data collection on MSW generation and composition.
- Overview of current collection, transport, treatment, and disposal methods.
- Analysis of existing MSW management practices and their environmental impacts.
Main Results:
- Chongqing generates approximately 1.08 kg of MSW per person daily, with food waste comprising 59%.
- MSW in Chongqing exhibits high moisture content (64.1%) and low LHV (3728 kJ/kg), hindering incineration.
- Landfilling is the primary disposal method, but pollution and insufficient capacity are significant issues.
Conclusions:
- Chongqing's MSW characteristics pose challenges for effective treatment and disposal.
- Current landfill practices are causing pollution and lack of backup capacity.
- Systemic improvements are needed to address MSW management challenges in Chongqing.
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