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某石化企业现有一座炼油污水处理厂(以下简称污水厂),设计规模为1600m3/h,欲对其进行升级改造。经过计算比选,该污水厂改造项目(以下简称该项目)采用“圆形溶气气浮+缺氧池+微曝氧化沟+生化曝气池+二沉池+砂滤系统”的处理工艺。经改造,经该污水厂处理的污水能达到《石油炼制工业污染物排放标准》(征求意见稿)特别排放限值,能大量减少污染物的排放,改善水环境质量,具有极其重要的社会效益和环境效益。
A petrochemical enterprise currently has an oil refinery sewage treatment plant (hereinafter referred to as WWTP) with a designed scale of 1600m3 / h and wants to upgrade it. After calculation and comparison, the wastewater treatment plant reconstruction project (hereinafter referred to as “the project”) adopts “circular dissolved air flotation + anoxic tank + micro-aeration tank + biochemical aeration tank + secondary settling tank + sand filtration system” Process. After the transformation, the sewage treated by this WWTP can reach the special discharge limit of “Emission Standard of Pollutants for Petroleum Refining Industry” (draft), which can greatly reduce the discharge of pollutants and improve the water environment quality, and it is of extremely important social significance Benefit and environmental benefits.