臭氧催化氧化系统在膜法有机浓水深度处理中的应用  

Application of Catalytic Ozonation System in Advanced Treatment of Organic Concentrated Water by Membrane Method

作　　者：袁少鹏 吴念鹏[1] 陈翔[1] 石洁 YUAN Shaopeng;WU Nianpeng;CHEN Xiang;SHI Jie(Beijing Origin Water Technology Co.,Ltd.,Beijing 102206,China)

机构地区：[1]北京碧水源科技股份有限公司,北京102206

出　　处：《净水技术》2024年第1期89-94,共6页Water Purification Technology

基　　金：城市污水资源化利用关键技术研发与应用示范(2022YFC3203100)。

摘　　要：洱源县某污水厂处理规模为1.0×10^(4)m^(3)/d,主体工艺为“膜生物反应器(MBR)-纳滤”双膜工艺,其中纳滤系统产生的浓水经臭氧催化氧化处理系统处理后与纳滤产水混合,混合出水主要指标达到国家《地表水环境质量标准》(GB 3838—2002)中Ⅲ类(湖、库)标准,实现污水零排放。臭氧催化氧化处理系统采用两段式设计,处理规模为1000 m^(3)/d。臭氧催化氧化系统通水运行一年后的性能测试显示,系统总体处理效果稳定,臭氧催化氧化处理后化学需氧量(CODCr)平均质量浓度由148.39 mg/L降低到75.45 mg/L,耗电量约为1.85 kW·h/m^(3)。结果表明,臭氧催化氧化工艺是膜法有机浓水深度处理的有效工艺。Eryuan WWTP has a treatment capacity of 1.0×10^(4)m^(3)/d,and the main process is the"membrane bioreactor(MBR)-nanofiltration"dual membrane process.The concentrated water generated by the nanofiltration system is treated by the ozone catalytic oxidation treatment system and mixed with the nanofiltration water.The main indices of the mixed water meet the classⅢ(lake,reservoir)standards in the national Environmental Quality Standards for Surface Water(GB 3838—2002),and achieve zero wastewater discharge.The ozone catalytic oxidation treatment system adopts a two-stage design with a treatment capacity of 1000 m^(3)/d.The performance test of the ozone catalytic oxidation system after one year of operation with water shows that the overall treatment effect is stable,the average mass concentration of chemical oxygen demand(CODCr)after ozone catalytic oxidation treatment is reduced from 148.39 mg/L to 75.45 mg/L,and the power consumption is about 1.85 kW·h/m^(3).The results show that the ozone catalytic oxidation process is an effective process for advanced treatment of organic concentrated water by membrane method.

关 键 词：臭氧催化氧化处理系统 污水零排放 化学需氧量(COD_(Cr)) 膜法有机浓水 深度处理 

分 类 号：TU992[建筑科学—市政工程]