HA-A/A-MCO工艺水解酸化单元运行性能研究

针对现有污泥减量技术中存在的氮、磷去除率低的问题,开发了一个新型的具有同步除磷脱氮和污泥减量功能的HA-A/A-MCO工艺,对回流污泥种类及比例对水解酸化池产酸、污泥减量及系统释磷效果进行研究,结果发现：回流污泥种类及比例影响水解酸化出水VFA总量进而影响释磷效果,回流2%厌氧释磷污泥水解产生的VFA总量最大（275 mg/L）,系统释磷量也最大（57 mg/L）。

Study on hydrolysis-acidification operating performance of the HA-A/A-MCO process

In order to explore the method of improving phosphorous and nitrogen removal in sludge reduction technologies,an advanced process combining sludge reduction and phosphorous and nitrogen removal is developed.The influence type of anaerobic P-release sludge and excess sludge and proportion of the returned sludge on hydrolysis-acidification and phosphorus release was studied.The result showed that the type of returned sludge affects the amount of VFA and the phosphorus release.When the return ratio of anaerobic P-release sludge entering into hydrolysis-acidification tank is about 2% of influent flow,the amount of VFA from hydrolysis-acidification process reaches the maximum （275 mg/L）,and the phosphorous content from anaerobic release reaches the maximum（57 mg/L）.