低温环境下A/O/A/O-MBR一体式污水处理技术应用研究

Study on the Application of A/O/A/O-MBR Integrated Sewage Treatment Technology in Low Temperature Environment

城市单体建筑会产生大量生活污水,要想实现自循环利用,必须采用合理技术进行污水处理。本文以城市单体建筑生活污水为研究对象,将溶解氧浓度、水力停留时间和污泥回流比作为试验条件,分析了北方低温环境下A/O/A/O-MBR技术对污水COD和TN的去除效果,以确定最佳工艺参数,为城市单体建筑内生活污水的自循环利用提供技术参考。

Single urban buildings will generate a large amount of domestic sewage,in order to realize self-recycling,reasonable technology must be used for sewage treatment.Taking the domestic sewage of the single urban buildings as the research object,this paper uses the dissolved oxygen concentration,hydraulic retention time and sludge return ratio as the experimental conditions,and analyze the removal effect of A/O/A/O-MBR technology on the COD and TN of sewage in the northern low temperature environment,in order to determine the optimal process parameters,which can provide technical reference for the self-circulation utilization of domestic sewage in single urban buildings.