Urban-rural mining: waste utilization in Guangdong, China

[摘要] Attitudes towards waste have changed gradually in view of the environmental pollution created and the potential of waste as a resource. This has led to the city and countryside of China being viewed as a complete »urban-rural mine» resources are extracted from what was once considered waste. Guangdong is a developed province and annual waste generation has recently exceeded 300 million tons. The waste distribution characteristics are as follows: most industrial solid waste is produced in the Pearl River Delta and Mountainous Region, waste associated with domestic activities is concentrated in the Pearl River Delta, and agricultural waste is found throughout the province. The ratios of material recycling and energy recovery are 58% and 11%, respectively, of collected waste. Recycled products include construction material, artificial boards, fuel, plastic, metal, chemicals, oil, and fibers. Energy is recovered by generating electricity from domestic waste, landfill gas, and forest and crop residue.

[发布机构] Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou; 510640, China^1;CAS Key Laboratory of Renewable Energy, Guangzhou; 510640, China^2;Guangdong Provincial Key Laboratory of New and Renewable Energy Research and Development, Guangzhou; 510640, China^3

[效力级别] 经济学

[关键词] Distribution characteristics;Domestic activity;Environmental pollutions;Industrial solid wastes;Material recycling;Mountainous regions;Pearl River delta;Recycled products