一种适合我国中小城镇污水处理技术——天津市津南区环兴污水处理厂工程设计介绍

A Suitable Municipal Sewage Treatment Technology for Small-Middle Cities in China——Project Introduction of Huanxing Wastewater Treatment Plant in Jinnan District of Tianjin,China

以天津市津南区环兴污水处理厂为例,介绍一种适合我国中小城镇污水处理技术的工艺流程、各构筑物的工艺设计特点与主要设备;环兴污水处理厂设计水量为3万t/d ,设计进水水质主要指标为CODCr:4 5 0mg/L ;BOD5:2 0 0mg/L ;出水水质优于《城镇污水处理厂污染物排放标准》中的二级标准。

Taking Huanxing wastewater treatment plant as an example,a suitable municipal sewage treatment technology for small-to middle-sized cities is introduced.The technological flow, design feature of the main tanks and the main equipments are discussed in detail.Design scale of Huanxing wastewater treatment plant is 30000m^3/d with the main qualities of influent COD_(Cr) 450mg/L, BOD_5 200mg/L.The effluent qualities met the second-degree standard of the national discharge standard of pollutants for municipal wastewater treatment plant. So far, Huanxing wastewater treatment plant has been operated steadily for one year.