摘要
分析人工生态池不同水生生物对于稻田排水的净化作用。选取不同的挺水植物、浮水植物以及沉水植物,开展稻田排水人工生态池净化试验,分析不同水生植物对于稻田排水中的TN和NH4+-N等污染物的净化作用。人工生态池对于稻田排水中TN、NH4+-N的净化效果明显,不同水生植物在净化后第6~7 d左右均能够将污染物浓度降低到排水前的水平。其中黑藻对于TN、NH4+-N的去除效果最好,净化4天即可达到90%以上的去除效果。人工生态池能够有效地净化稻田排水水质,减少农业面源污染的排放;黑藻的净化效果最好,适宜在人工生态池中进行推广种植。
To study the purification effect of artificial ecological pool on rice field drainage,this paper analyzes the purification effects of TN,NH4+-N for paddy field drainage by two years’rice field drainage artificial ecological pool purification test for emergent plants,floating plants and submerged plants.The artificial ecological pond has an obvious purification effect on TN and NH4+-N in paddy field drainage.Dif⁃ferent aquatic plants can reduce the pollutant concentration to the level before unsewage in the 6th to 7th day after purification.Among them,the removal of TN and NH4+-N from Hydrilla verticillata is the best,and the removal effect is more than 90%after 4 days of purification.Arti⁃ficial ecological pool can effectively purify rice field sewage and reduce agricultural non-point source pollution.Black algae have the best pu⁃rification effect and are suitable for popularization in artificial ecological pools.
作者
许怡
曾艳丽
刘敏芝
刘天
张轩
吴巍
周星池
XU Yi;ZENG Yan-li;LIU Min-zhi;LIU Tian;ZHANG Xuan;WU Wei;ZHOU Xing-chi(Nanjing Hydraulic Research Institute,Nanjing 210029,Jiangsu Province,China;Hydrological Survey Team of Qingpu,Shanghai 201700,Shanghai,China;Ningbo Yinzhou District Rural Water Resources Management Center,Ningbo 3151003,Zhejiang Province,China;Ningbo Water Facilities Operation Management Center,Ningbo 315043,Zhejiang Province,China)
出处
《中国农村水利水电》
北大核心
2023年第5期1-4,共4页
China Rural Water and Hydropower
基金
“十四五”国家重点研发计划项目专题(2021YFB3900602)
南京水利科学研究院基本科研业务费青年基金项目(Y521013)
浙江省水利科技项目(RC2026)
宁波市水利局科技项目(NSKB202123)。
关键词
人工生态池
稻田排水
水生作物
减污效应
artificial ecological pool
rice field drainage
aquatic crops
pollution reduction effect
