生物组合技术净化试验及其在北运河城区段示范工程的应用研究  

Research on Purification Experiment of Biological Combination Technology and Its Application in North Canal City Demonstration Project

作　　者：胡韵爽 李绍飞[1] 孙珂 刘然 董立新[3] 常素云[3] HU Yunshuang;LI Shaofei;SUN Ke;LIU Ran;DONG Lixin;CHANG Suyun(Tianjin Agricultural University,Tianjin 300384,China;Xinxiang Hydrology and Water Resources Survey Bureau,Xinxiang 453000,China;Tianjin Water Conservancy Research Institute,Tianjin 300061,China)

机构地区：[1]天津农学院,天津300384 [2]河南省新乡水文水资源勘测局,河南新乡453000 [3]天津市水利科学研究院,天津300061

出　　处：《灌溉排水学报》2022年第8期106-113,共8页Journal of Irrigation and Drainage

基　　金：“十三五”国家水体污染控制与治理重大专项(2017ZX07106003)。

摘　　要：【目的】针对北运河城区段水质特点,研发生物生态净化技术,建设示范工程。【方法】开展试验对比4种不同水生植物、人工水草、曝气-水生植物-人工水草对北运河水质的净化效果并将组合技术应用于示范工程中。【结果】生物生态组合技术去除效果优于人工水草、水生植物等单一技术,在武清城区段七污排污口下游1.1 km建成的示范工程连续稳定运行10个月,除2020年8月NH4~-N外,其他月份出水中NH4~-N和TP达到地表水Ⅴ类标准,单位面积浮床对NH^(+)-N、TP的削减量分别为0.36、0.073 kg/m^(2)。【结论】生物生态组合技术能在冬、夏季强化对氮磷的去除效果,形成优势互补。尤其是在冬季,能克服植物枯萎、去除效果不好的劣势,实现低温环境下对NH^(+)-N和TP的有效净化,适合在北方缓滞型河道的水质改善及景观修复中推广应用。【Objective】Water pollution is a great environmental concern for surface water in many regions in northern China,and how to purify the water is essential to maintaining its ecological function.The aim of this paper is to test the feasibility of different biotechnologies for water purification.【Method】The experiments were conducted in the northern section of the great Canal in Tianjian,in which we investigated the efficiency of four aquatic plants in comparison with artificial aquatic plants,aeration-aquatic plants-artificial aquatic plants.【Result】The removal effect of the bioecological combined technology was better than that of the artificial aquatic plants,aquatic plants and other technologies.After running for 10 months,the purification site build 1.1km downstream of the outlet of the seventh sewage treatment plant at Wuqing has seen the NH-N and TP reaching Standard V for surface water,with the floating beds reducing NH-N and TP to 0.36 kg/m^(2)and 0.073 kg/m^(2),respectively.【Conclusion】The bioecological combination technology facilitated the removal of nitrogen and phosphorus in the water during both winter and summer,especially in winter.It overcomes the disadvantages of plant wilt and poor removal effect,and realizes the effective purification of NH-N and TP in low temperature environments,suitable for the application of water quality improvement and landscape restoration in north slow river.

关 键 词：生物生态 组合技术 水生植物 人工水草 

分 类 号：TV93[水利工程—水利水电工程] X522[环境科学与工程—环境工程]