氧化沟内置缺氧段技术改造的工程应用

Engineering application of technical transformation of built-in hypoxia section in oxidation ditch

某污水处理厂改良型氧化沟工艺采用内置缺氧段的工艺来去除TN,在实际运行中存在较多问题,针对出现的问题,研究在好氧末端设置挡墙控制混合液回流量,形成明显缺氧环境。经实际运行表明,此次工程改造应用有效提升了工艺的脱氮效果,为今后同类的工艺改造提供了借鉴。

The improved oxidation ditch process of a sewage treatment plant used the process of built-in hypoxia section to remove TN,which had many problems in practical operation.In view of these problems,a retaining wall was set at the aerobic end to control the mixed liquid return flow and form an obvious hypoxia environment.The practical operation showed that the application of this engineering transformation effectively improved the nitrogen removal effect of the process,and provided a reference for the similar process transformation in the future.