| 引用本文: | 胡韵爽,李绍飞,刘然,等.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[J].灌溉排水学报,0,():-. |
| HuYunShuang,LiShaoFei,LiuRan,et al.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[J].灌溉排水学报,0,():-. |
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| 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，对北运河水质达标具有重要的意义。【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NH+4-N外，其他月份出水中NH+4-N和TP达到地表水Ⅴ类标准，单位面积浮床对NH+4-N、TP的削减量分别为0.36 kg/m2、0.073 kg/m2。【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+4-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。 |
| 关键词: 生物生态;组合技术;水生植物;人工水草 |
| DOI： |
| 分类号:TV93；X522 |
| 基金项目:城区段河道水质改善技术研究与示范 （No. 2017ZX07106003-004 ） |
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| Study on Purification Experiment of Biological Combination Technology and Its Application in North Canal City Demonstration Project |
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HuYunShuang,LiShaoFei,LiuRan,et al
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1.Tianjin Agricultural University;2.Tianjin Water Conservancy Research Institute
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| Abstract: |
| 【Objective】According to the water quality characteristics of the North Canal City section, it is of great significance to develop biological and ecological purification technology and build demonstration projects.【Method】Experiments were carried out to compare the purification effect of four different aquatic plants, artificial aquatic plants, aeration -- aquatic plants -- artificial aquatic plants on the water quality of The North Canal, and the combined technology was applied to the demonstration project. 【Result】The removal effect of bio-ecological combined technology was better than that of artificial aquatic plants, aquatic plants and other single technology. The demonstration project built 1.1km downstream of the seventh sewage outlet in Wuqing City section has been running steadily for 10 months. Except for NH+4-N in August 2020, the NH+4-N and TP in the outflow water in other months have reached the surface water Ⅴ standard，and the reduction of NH+4-N and TP by floating bed per unit area is 0.36 kg/m2 and 0.073 kg/m2, respectively. 【Conclusion】Bio-ecological combination technology can enhance the removal effect of nitrogen and phosphorus in winter and summer, and form complementary advantages. Especially in winter, it can overcome the disadvantages of plant wilt and poor removal effect, and realize the effective purification of NH+4-N and TP in low temperature environment, which is suitable for the application of water quality improvement and landscape restoration in north slow river. |
| Key words: biological ecology; combination technology; aquatic plants;artificial water grass |
