太湖流域农村生活垃圾面源污染贡献值估算  

Calculation of Contribution Value of Non-point Source Pollution of Rural Refuse in Tai Lake Region

作　　者：刘永德[1] 何品晶[2] 邵立明[2] 

机构地区：[1]河南工业大学化学化工学院,河南郑州450001 [2]同济大学污染控制与资源化研究国家重点实验室,上海200092

出　　处：《农业环境科学学报》2008年第4期1442-1445,共4页Journal of Agro-Environment Science

基　　金：国家"863"高技术发展计划(2002AA601012)

摘　　要：农村生活垃圾是太湖流域农村面源污染的重要来源之一,选取太湖流域大浦镇农村地区为调查区域,调查农村生活垃圾产生密度和雨水径流量,确定农村生活垃圾对面源污染的贡献值。结果表明,农村生活垃圾村域产生密度为105.9t·km-2·a-(1含集贸市场垃圾),地表径流量为45.0万m3·km-2·a-1,农村生活垃圾弃置使径流增加的N、P浓度分别为3.3mg·L-1、0.7mg·L-(1即面源污染贡献值),均超过太湖重富营养化的N、P浓度限值,因此,从源头上治理农村生活垃圾污染问题,避免垃圾任意堆放释放污染物,对解决太湖农村面源污染具有重要意义。Rural refuse is one of main sources of non-point source（NPS） pollution in Tai Lake Region. Contribution value of NPS pollution of rural refuse was calculated, based on the investigation of refuse generation characteristics, current situation of refuse disaposal and rainfall runoff in the rural areas of Dapu Town located within the range of Tai Lake Region. The results showed that the generation rate of rural refuse （include market refuse） was 0.31 kilograms per capita per day, and 105.9 tons per square kilometer per year, nitrogen and phosphorous released from exiting rural refuse per ton were 14 kilograms and 2.8 kilograms. Extended to the entire rural areas of Tailake Region, total generation of rural refuse was 1 671 000 ton per year, nitrogen and phosphorous released from rural refuse per year was 23 397 tons and 4 679 tons, respectively. The rainfall runoff was 450 000 cubic meters per square kilometer per year, the rural refuse was dumped along the rivers and roads, resulting in the increment of nitrogen and phosphorous in the runoff for 3.3 milligrams and 0.7 milligrams per litre, respectively （i. e., contribution value of NPS pollution ）, exceeding nitrogen and phosphorous limits of super eutrophication. So, pollution problems of rural refuse were solved from source, avoiding rural refuse dumped everywhere to release pollutants, this was of great importance to solve NPS pollution in Tai Lake Region.

关 键 词：农村生活垃圾 面源污染 贡献值 太湖流域 

分 类 号：X522[环境科学与工程—环境工程]