氮磷拦截工程在农业面源污染中的设计与应用
Design and application of nitrogen and phosphorus interception project in agricultural non-point source pollution
何凡 1许超 1林宇迪 1周婷 2闫晨煜 1张荣炳 3贾洪柏1
作者信息
- 1. 浙江国千环境技术发展有限公司,浙江 安吉 313300
- 2. 湖州市农业农村生态与能源中心,浙江 湖州 313025
- 3. 安吉县人民政府灵峰街道办事处,浙江 安吉 313300
- 折叠
摘要
针对农村田园生态系统农业面源污染,通过对现有农业灌溉沟渠进行全面改造,建设氮磷拦截沟渠、生态透水坝、反硝化除磷模块等,构建"新型农田生态氮磷拦截系统".系统建成稳定运行,出水水质整体稳定保持在地表Ⅳ类水及以上,其中,化学需氧量消减达 35.0%,氨氮消减达 44.6%,总磷消减达 29.5%,有效减少了区域内氮磷污染物的排放.该系统投资成本低,效率高,在类似的沟渠改造工程中拥有广泛的推广应用前景.
Abstract
In view of agricultural non-point source pollution in rural pastoral ecosystem,a"new farmland ecological nitrogen and phosphorus interception system"is constructed by comprehensively transforming the existing agricultural irrigation ditches,constructing nitrogen and phosphorus interception ditches,ecological permeable dam,denitrification and phosphorus removal modules,etc.After the system was completed and operated steadily,the overall effluent water quality remained stable at or above the surface Class Ⅳ water,among which the chemical oxygen demand was reduced by 35.0%,ammonia nitrogen was reduced by 44.6%,and total phosphorus was reduced by 29.5%,effectively reducing the discharge of nitrogen and phosphorus pollutants in the region.The system has low investment cost and high efficiency,and has broad application prospects in similar ditch reconstruction projects.
关键词
农业面源污染/氮磷拦截沟渠/生态透水坝/反硝化除磷Key words
agricultural non-point source pollution/nitrogen and phosphorus interception ditch/ecological permeable dam/denitrification and phosphorus removal引用本文复制引用
出版年
2024
NETL
NSTL
万方数据