水平管高效沉淀技术在污水深度处理中的应用

Application of Horizontal Tube Sedimentation Technology in Advanced Treatment of Wastewater

东营市西城城北污水处理厂深度处理工艺采用以水平管高效沉淀池为主的综合技术。实际运行效果表明,在沉淀池满负荷运行工况下,出水水质稳定达到《城镇污水处理厂污染物排放标准》(GB 18918—2002)的一级A标准,可超越滤池直接达标排放。与常规技术相比,该技术具有运行稳定、沉淀效率高、调试便捷、操作管理方便、运行费用低、占地面积小等优点。

A combined process based on the horizontal tube sedimentation tank was implemented in the tertiary treatment stage in the Dongying WWTP. The effluent quality met the first level A criteria specified in the Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant （ GB 18918 - 2002）, and was suitable for discharge without further filtration. Compared with the conventional technol- ogies, the combined process has advantages such as simple structures, high precipitation efficiency, con- venient testing and operation management, low operation cost, and space efficiency.