【摘要】 将深塘曝气技术与人工湿地技术优化组合应用于河北省某农村河道水质提升工程。在河段下游截流蓄水,建设生态组合氧化深塘及潜流湿地系统对黑臭水体进行集中治理后重新排入河道。通过对系统进水及出水的主要污染物指标进行检测分析,研究系统在不同季节对河道水体水质净化效果,并对工程建设投资及运行费用进行分析。结果表明:春夏季节,系统出水水质明显提升,出水SS、氨氮和总磷浓度以及COD值均能够稳定达到《城镇污水处理厂污染物排放标准》（GB 18198-2002）一级A标准,秋冬季节系统能够正常稳定运行,对河水主要污染物具有较高的去除率;工程占地面积小,设备能耗低,运行费用仅为0.23元·t⁽-10。该组合技术对于季节性变化明显的农村河道水质净化效果较好,经济优势明显,可为农村黑臭河道治理技术提供新思路。更多还原

【Abstract】 The optimized combination of deep pond aeration and artificial wetland technologies was used for the water quality improvement project of a certain rural river in Hebei province. The river water was cut off and stored by damming in the downstream section of the river, then the ecological system of combined deep oxidation pond and subsurface wetland was built to treat the black and odorous water, afterward the treated water was redischarged into the river. The main pollutants index of inlet and outlet of the system were tested and analyzed,and the purification effect of river water quality in different seasons was studied. At the same time, both the project construction investment and the cost of operation and maintenance were analyzed. The results showed that in spring and summer, the effluent water quality of the system was significantly improved, the effluent SS,ammonia nitrogen, total phosphorus concentrations and COD could stably meet the first-grade A standard of pollutant discharge standard of the urban sewage treatment plant（GB 18198-2002）. In autumn and winter, the system could maintain a normal and stable operation, and relatively high removal rates of main pollutants in the river occurred. The project presented a small land demand and low energy consumption of equipment, the operation cost was only 0.23 yuan·t^-1. The combined technology has a good performance on the water quality purification of rural river water with obvious seasonal changes, and obvious economic advantages, which could provide new ideas for the treatment of rural black and odorous river water.更多还原