双污泥脱氮除磷工艺用于老厂达标改造

Application of Removing Phosphorus and Nitrogen Combined Activated Sludge and Filter Technology in the Reconstruction of Original Wastewater Treatment Plant

阐述了双污泥脱氮除磷(PASF)工艺的处理流程及特点,并与常规AAO单污泥系统进行了比较,介绍了该工艺在老厂达标改造中的应用。结果表明,相对于传统的处理工艺,双污泥脱氮除磷处理工艺在出水水质、基建投资、运行费用及运行管理方面均有较大的优势,适合老污水处理厂达标改造。

The flowchart and characteristics of removing phosphorus and nitrogen combined activated sludge and filter technology were described, with comparison made on the conventional single sludge process such as AAO system. Application of the process in reconstruction of original plant was introduced. It is indicated that the two-sludge process is superior to the conventional treatment process in the aspects of effluent quality, capital investment, operating cost, and operational management, and so it is appropriate to the reconstruction of original wastewater treatment plant.