倒置A^2/O工艺硝化除磷调控的实例分析

Case Analysis on Control of Inverse A^2/O Process for Nitrification and Phosphorus Removal

北京清河污水处理厂一期工程采用倒置A2/O工艺,运行2年以来,在保证出水NH3-N达标的情况下仅通过生物除磷就使出水TP≤0.3mg/L。实践证明,在工艺调控中掌握一些关键控制点,使倒置A2/O工艺的硝化除磷能力充分发挥,是高效生物除磷的关键。

Inverse A^2/O process is used in the first phase project of Beijing Qinghe Wastewater Treatment Plant. During its operation in the past two years, the effluent TP reached below 0.3 mg/L only through biological phosphorus removal under the condition of ensuring the up-to-standard of the effluent NH3 - N. The practice proves that it is the key point for high-efficiency biological phosphorus removal to master some control points in the process adjustment and control to give full play to the greater nitrification and phosphorus removal capability of inverse A^2/O process.