广东某大型污水厂提标工程设计实例

An Upgrading Design Example of a Large Wastewater Treatment Plant in Guangdong Province

广东省某污水处理厂处理规模为15×10^(4)m^(3)/d,针对二级处理出水的特点以及出水执行地表水环境质量标准(GB 3838-2002)中IV类水标准(TN除外)(准Ⅳ类水标准)的要求,提标工程采用了"SAF+SDF+高效沉淀池+过滤+消毒"的主体处理工艺。通过介绍提标工艺流程以及工程的设计参数,为类似大型污水处理厂的提标改造提供相关设计经验。

The treatment capacity of a wastewater treatment plant(WWTP) in Guangdong Province is 15×10^(4) m^(3)/d.According to the characteristics of secondary treatment effluent and the requirements of class IV water standard(except TN) in Environmental quality standards for surface water(GB3838-2002)(quasi IV-class surface water),the main treatment processes of "SAF + SDF + high-efficiency settler + filtration + disinfection" were proposed in the upgrading project.Introduction of the treatment processes and design parameters of the upgrading project,this paper provides the relevant design experience for the upgrading and reconstruction of the similar large sewage treatment plants.