天津市港区污水处理厂升级改造工程设计

Engineering design for revamp of WWTP in Tianjin harbor area

本文介绍了天津市港区污水处理厂升级改造的工艺流程和建筑物设计。工程设计中充分考虑原有工艺及构筑物的合理再利用,将原A^2/O工艺改造成两级A/O+絮凝沉淀+过滤工艺,大幅度提高了污水厂出水指标,最终升级改造后污水厂出水水质达到DB12/599—2015城镇污水处理厂污染物排放标准的B标准。

This paper introduces the process flow and architecture design for upgrading the wastewater treatment plant(WWTP) in harbor of Tianjin. The utilization of original process route and structures has been fully considered in the engineering design. The original Anaerobic-Anoxic-Oxic(A^2/O) process has been transformed into two-stage Anoxcic/Oxic(A/O) + coagulation + filter process,which has improved the purification capacity of the WWTP dramatically.The effluent water quality of the plant after the final upgrading reaches the first class discharge standard and meets the requirements of the Discharge Standard of Pollutants of B for Municipal Wastewater Treatment Plant(DB12/599-2015).