摘要
农村面源污染是指农村生活和农业生产活动中大量污染物进入受纳水体所引起的污染。在降水和径流冲刷作用下,溶解的或固体状的污染物从非特定的地域通过农田地表径流、农田排水和地下渗漏等方式进入受纳水体中。当前,有必要采取合理措施,对农村面源污染进行综合防治。一是通过农田生态塘改造,对农田退水中的N、P等元素进行有效拦截与净化利用;二是通过生活污水治理和畜禽养殖废弃物减量化等措施,从源头上减少地表径流污染负荷,实现废弃物的资源化利用。以上污染治理技术在湖南省农村环境综合整治及农业面源污染治理中广泛使用,效果较好。
Rural non-point source pollution refers to the pollution caused by a large number of pollutants in rural life and agricultural production activities entering the receiving water body.Under the action of precipitation and runoff erosion,dissolved or solid pollutants enter the receiving water body from non-specific areas,through farmland surface runoff,farmland drainage,and underground leakage.At present,it is necessary to take reasonable measures to comprehensively prevent and control non-point source pollution in rural areas.The first is to effectively intercept and purify the elements such as N and P in farmland returning water through the transformation of farmland ecological ponds;the second is to reduce the pollution load of surface runoff from the source through measures such as the treatment of domestic sewage and the reduction of waste from livestock and poultry breeding,so as to realize the resource utilization of waste.The above pollution control technologies are widely used in the comprehensive improvement of rural environment and agricultural non-point source pollution control in Hunan Province,and the effect is good.
作者
宁辉龙
NING Huilong(Hunan Debang Environmental Protection Technology Co.,Ltd.,Changsha 410000,China)
出处
《中国资源综合利用》
2021年第10期190-192,共3页
China Resources Comprehensive Utilization
关键词
农村面源污染
生态塘
三格式化粪池
沼气池
rural non-point source pollution
ecological pond
three-format manure pond
biogas digester
