生态工程在尾水深度处理中的应用——以洪泽尾水生态工程为例
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摘要
对洪泽尾水生态处理工程进行调研,为其他生态工程设计和管理提供参考。结果表明:洪泽生态工程运行效果良好,在进水水质接近一级B排放标准的情况下,总出水主要水质指标优于一级A的设计标准。南线工程净化效果优于北线工程,南线出水COD、TN、TP分别低于20、2、0.02 mg/L,北线出水COD、TN、TP分别低于60、8、0.1 mg/L;洪泽生态工程设计合理、管理规范,但仍有细节需要完善,其他生态工程设计时,潜流湿地要注重基质的选择,曝气塘运行管理过程中,要注重曝气及挂膜效果,提高工程的净化效率。
A research on the ecological treatment project of Hongze tail water was carried out to provide a reference for the design and management of other ecological projects. The results showed that the operation of Hongze ecological engineering was good, and the main water quality index of the total effluent was better than the effluent standard of First grade A in the case that inlet water quality is close to effluent standard of First grade B. The cleaning effect of South Line Project was better than the North Line, the concentration of COD, TN and TP in the effluent of the South Line Project Engineering was lower than 20, 2 and 0.02 mg/L, respectively, while the water quality index of the North Line Project Engineering was lower than 60, 8 and 0.1 mg/L. Hongze ecological engineering was reasonable and the management was standardized, but there were still details that need to be improved. In other ecological engineering design, we should pay attention to the choice of matrix in Subsurface wetland design and the aeration performance, biofilm culturing in the process of running and management of aerated pond in order to improve the purification efficiency of the project.
A research on the ecological treatment project of Hongze tail water was carried out to provide a reference for the design and management of other ecological projects. The results showed that the operation of Hongze ecological engineering was good, and the main water quality index of the total effluent was better than the effluent standard of First grade A in the case that inlet water quality is close to effluent standard of First grade B. The cleaning effect of South Line Project was better than the North Line, the concentration of COD, TN and TP in the effluent of the South Line Project Engineering was lower than 20, 2 and 0.02 mg/L, respectively, while the water quality index of the North Line Project Engineering was lower than 60, 8 and 0.1 mg/L. Hongze ecological engineering was reasonable and the management was standardized, but there were still details that need to be improved. In other ecological engineering design, we should pay attention to the choice of matrix in Subsurface wetland design and the aeration performance, biofilm culturing in the process of running and management of aerated pond in order to improve the purification efficiency of the project.
引文
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[7] 张靖雯,阮爱东.人工潜流湿地脱氮技术研究进展[J].环境科技,2017,30(4):72-75,80.
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[10] 曹勋,韩睿明,章婷曦,等.冬季水生植物分解过程及其对水质的影响研究[J].农业环境科学学报,2015,34(2):361-369.
[11] 马月,王国祥,曹勋,等.菹草腐解-金鱼藻生长耦合作用对水质及植物生长的影响[J].环境科学,2015,36(7):2504-2510.
[2] Arroyo P,Ansola G,de Miera L E S. Effects of substrate,vegetation and flow on arsenic and zinc removal efficiency and microbial diversity in constructed wetlands [J].Ecological Engineering,2013,51(2): 95-103.
[3] 王楠,王晓昌,熊家晴,等.人工湿地在工业园区污水厂尾水处理中的工程应用[J].环境工程,2017,35(12):11-14,44.
[4] 吴义福,吕锡武,杨子萱.浸润线可控型人工湿地的生活污水脱氮除磷性能研究[J].水处理技术,2017,43(12):89-94.
[5] 陈冬霞,刘宏伟,梁红,等几种草本植物对面源微污染重金属的净化能力[J]. 农业环境科学学报, 2017, 36(12):2500-2505.
[6] 程丽芬,张欣,樊兰英,等.人工湿地水生植物根系研究进展[J].山西林业科技,2017,46(2):40-45.
[7] 张靖雯,阮爱东.人工潜流湿地脱氮技术研究进展[J].环境科技,2017,30(4):72-75,80.
[8] Wang S R,Nian Y G,Hou W H,et al. Macrophyte selection in artificial wetland[J].Journal of Lake Sciences,2004,16(1) : 91-95.
[9] Collins B S,Sharitz R R,Coughlin S D,et al. Elemental composition of native wetland plantsin constructed mesocosm treatment wetlands[J].Bioresource Technology,2005,96(8) : 937-948.
[10] 曹勋,韩睿明,章婷曦,等.冬季水生植物分解过程及其对水质的影响研究[J].农业环境科学学报,2015,34(2):361-369.
[11] 马月,王国祥,曹勋,等.菹草腐解-金鱼藻生长耦合作用对水质及植物生长的影响[J].环境科学,2015,36(7):2504-2510.