曝气增氧技术在河道治理工程中的实践应用与效果评估OA
Practical application and effect evaluation of aeration and oxygenation technology in river treatment projects
针对城市污染河道治理需求,依托某地水生态修复工程,选取典型河段布设生物-曝气复合强化装置,对比连续与间歇两种曝气模式下水体中溶解氧(DO)、高锰酸盐指数(CODMn)、氨氮(NH3-N)及总磷(TP)的时空变化特征.结果显示,两种曝气模式均可提升水体DO水平,平均增幅为14.4%;在有机污染物去除方面,间歇曝气下CODMn平均去除率为12.18%,效果更佳;对于NH3-N的去除,连续曝气更为有效,平均去除率达16.8%;在TP去除方面,间歇曝气效率较高,平均去除率为45.1%;净化效应主要集中在装置周边30 m范围内.
In response to the demand for urban polluted river treatment,a typical river section was selected to arrange a bio-aeration composite enhanced device based on a water ecological restoration project in a certain region.The spatiotemporal variation characteristics of dissolved oxygen(DO),permanganate index(CODMn),ammonia nitrogen(NH3-N)and total phosphorus(TP)in the water body under continuous and intermittent aeration modes were compared.The results showed that both aeration modes could increase the DO level in the water body,with an average increase of 14.4%;in terms of organic pollutant removal,the average removal rate of CODMn under intermittent aeration was 12.18%,with a better effect;for NH3-N removal,continuous aeration was more effective,with an average removal rate of 16.8%;in terms of TP removal,intermittent aeration presented higher efficiency,with an average removal rate of 45.1%;the purification effect was mainly concentrated within 30 m around the device.
许佳明;赵亚南;张良
江苏省工程勘测研究院有限责任公司,江苏 扬州 225000徐州市水利工程运行管理中心,江苏 徐州 221000江苏省工程勘测研究院有限责任公司,江苏 扬州 225000
资源环境
河道治理曝气增氧生物治理连续曝气间歇曝气
river managementaeration and oxygenationbiological governancecontinuous aerationintermittent aeration
《江苏水利》 2026 (5)
7-11,17,6
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