| 高效垂直流人工湿地+多级生态塘深度处理污水厂尾水 |
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| 引用本文： | 段田莉, 成功, 郑媛媛, 罗思义. 高效垂直流人工湿地+多级生态塘深度处理污水厂尾水[J]. 环境工程学报, 2017, 11(11): 5828-5835. doi: 10.12030/j.cjee.201608161 |
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| 作者姓名： | 段田莉 成功 郑媛媛 罗思义 |
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| 作者单位： | 1. 青岛理工大学环境与市政工程学院, 青岛 266033; 2. 深圳市环境科学研究院, 深圳 518001 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项（2012ZX07206-004） |
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| 摘 要： | 采用高效垂直流人工湿地+多级生态塘组合工艺对污水厂尾水进行深度处理。研究发现，组合工艺进水流量为900 m3·d-1时为最优工况；在最优运行工况下组合工艺对污水处理厂尾水有显著的净化效果，对COD、NH3-N、TN和TP的去除效果可高达59.22%、81.06%、93.11%和55.81%，出水达到《地表水环境质量标准》（GB 3838-2002）Ⅳ类标准；生态塘能强化NH3-N和TN去除效果，可进一步除磷，降低富营养化风险；运行一年至少减少COD排放量9.85 t·a-1，NH3-N排放量1.73 t·a-1，TN排放量4.96 t·a-1，TP排放量0.16 t·a-1，具有良好的环境效益和经济效益。
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| 关 键 词： | 垂直流人工湿地 生态塘 深度处理 组合工艺 尾水 |
| 收稿时间： | 2016-11-30 |
Advanced treatment of tail water from sewage plant by high-efficiency vertical flow constructed wetland-multistage ecological ponds |
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| DUAN Tianli, CHENG Gong, ZHENG Yuanyuan, LUO Siyi. Advanced treatment of tail water from sewage plant by high-efficiency vertical flow constructed wetland-multistage ecological ponds[J]. Chinese Journal of Environmental Engineering, 2017, 11(11): 5828-5835. doi: 10.12030/j.cjee.201608161 |
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| Authors: | DUAN Tianli CHENG Gong ZHENG Yuanyuan LUO Siyi |
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| Affiliation: | 1. College of Environmental and Municipal Engineering, Qingdao Technology University, Qingdao 266033, China; 2. Shenzhen Research Academy of Environmental Science, Shenzhen 518001, China |
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| Abstract: | The combined vertical flow constructed wetland (VFCW)-multistage ecological pond system was used in high-efficiency, advanced treatment of sewage plant effluent. The optimal operating condition of the combined system was at the influent flow of 900 m3·d-1;the combined craft had high efficiency in advanced treating sewage plant effluent under the optimal operating condition. The removal rates of COD, NH3-N, TN, and TP were 59.22%, 81.06%, 93.11%, and 55.81%,respectively,and the water quality of the outflow met the Class-Ⅳ of《environmental quality standards for surface water》(GB 3838-2002). The results show that ecological ponds can greatly improve the removal efficiency of NH3-N and TN and further reduce phosphorus levels and the risk of eutrophication. The emissions of COD, NH3-N, TN, and TP could be reduced by 9.85, 1.73, 4.96, and 0.16 t·a-1,respectively, after one year of operation, emphasizing the environmental and economic benefits of the combined system. |
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| Keywords: | vertical flow constructed wetlands ecological pond advanced treatment combined craft tail water |
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