摘要：
某精细化工园区污水厂设计规模为10 000 m3/d，通过升级改造，使出水达到《城镇污水处理厂污染物排放标准》（GB 18918—2002）一级A标准。生化前端新建臭氧催化氧化工艺提高废水可生化性，为后续生化处理提供有利条件；原有AO生化系统改造为AO+移动床生物膜（MBBR）提高COD、TN去除率；末端设置高密度沉淀池和滤布滤池去除悬浮物。经调试运行，改造后的处理工艺运行效果稳定良好，出水平均COD、NH3-N、TN、TP分别达到26.7、2.44、10.9、0.14 mg/L。
关键词:
精细化工园区污水厂,
臭氧催化氧化,
可生化性,
移动床生物膜
Abstract:
The design scale of a sewage plant in a fine chemical industry park was 10 000 m3/d. Through upgrading and transformation，the effluent could reach the “Discharge standard of pollutants for municipal wastewater treatment plant”（GB 18918—2002） Grade A standard. Newly added ozone catalytic oxidation process at the front of the biological process could improve the biodegradability of wastewater and provide favorable conditions for biological treatment. In addition the original AO biological system was transformed into AO-MBBR，which could improve the removal efficiency of COD and TN. Further，the end was equipped with high density sedimentation tank and cloth media filter to remove SS. After debugging and operation，the upgraded treatment process had a stable and good operation effect. The average effluent of COD，NH3-N，TN，TP was 26.7 mg/L，2.44 mg/L，10.9 mg/L，0.14 mg/L，respectively.
Key words:
sewage plant in fine chemical industry park,
ozone catalytic oxidation,
biodegradability,
moving bed biofilm reactor（MBBR）
中图分类号:
杨宏伟, 邢雷, 史政伟, 杨峻, 白云志. 臭氧-MBBR在精细化工园区污水厂改造中的应用[J]. 工业水处理, 2023, 43(5): 175-180.
Hongwei YANG, Lei XING, Zhengwei SHI, Jun YANG, Yunzhi BAI. Application of ozone-MBBR process in renovation of sewage plant in fine chemical industry park[J]. Industrial Water Treatment, 2023, 43(5): 175-180.