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《Environmental Pollution & Control》 2015-05
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Analysis on the treatment status and characteristics of solid waste and peasants' environmental awareness in rural areas of Sichuan Province

HAN Zhiyong;SHI Guozhong;XIE Yanhua;WEI Luoyu;CHEN Ziai;ZHANG Guozhi;HE Li;College of Environment and Civil Engineering,Chengdu University of Technology;Biogas Institute of Ministry of Agriculture;  
Sichuan Province with multiple climate and topography plays an important role on the ecological barrier in China.Therefore,10 villages were selected randomly,where the treatment status and characteristics of solid waste and peasants' environmental awareness were studied.The results showed that,the rate of waste collection and transfer was relative high.Domestic waste and plastics were mainly burned;most of human and animal excreta were used as manure;majority of straws were used as fuel for daily life and the greatest part of ash was sent back to farmland.Besides,most of domestic sewage was discharged into surroundings.Therefore,lots of combined environmental contaminations about surface water,solid waste and air were caused by those treatments of typical pollutants.Based on the investigation,domestic waste generation was 227g/d per capita and it was mainly composed of kitchen waste,dust,paper and plastics.Moreover,the average waste bulk density,moisture content,ash,combustible and low calorific value were 129kg/m3,43.42%,28.22%,28.36% and 6 048kJ/kg respectively.Additionally,the peasants' environmental knowledge of domestic waste was not very clear and their willingness was not very strong as well to pay for environmental services and to participate in the waste management.Therefore,it was suggested that the decentralized treatments of domestic waste and sewage should be most suitable in the different rural areas of Sichuan Province.It was suggested that the household biogas digesters and the biogas engineering should be fully utilized.Moreover,the treatments of domestic waste and sewage should be supplemented by centralized treatment.
【Fund】: 中央级公益性科研院所基本科研业务费专项(No.2012ZL0042);; 成都理工大学中青年骨干教师培养计划(No.KYGG201406)
【CateGory Index】: X705;X24
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