UV/O_(3)/H_(2)O_(2)组合工艺深度处理污水厂尾水中CDOM研究  

Research on Advanced Treatment of CDOM in Wastewater Outlet by UV/O_(3)/H_(2)O_(2) Combined Process

作　　者：华欣远 袁维波 Xin Yuan Hua;Wei Bo Yuan(Tongfang Water Branch Co.,Ltd,Nanjing 210046,China)

机构地区：[1]同方水务集团有限公司,江苏南京210046

出　　处：《污染防治技术》2023年第6期68-73,共6页Pollution Control Technology

摘　　要：污水处理厂尾水中残留的有色可溶性有机物(CDOM)直接排放对环境造成潜在危害。本研究采用UV/O_(3)/H_(2)O_(2)组合工艺对污水厂尾水进行深度处理,利用三维荧光光谱分析方法,考察了光照时间、O_(3)流量和pH值等因素对尾水中CDOM的去除效果。研究结果表明,UV/O_(3)/H_(2)O_(2)工艺能够有效去除CDOM荧光组分,通过响应面分析确定了最佳的反应条件:光照时间37 min,O3流速0.7 L/min,pH值9。预测和实际去除率分别为85.79%和83.38%,验证了响应面方法能够有效描述UV/O_(3)/H_(2)O_(2)工艺的降解反应过程。该研究结果为UV/O_(3)/H_(2)O_(2)氧化工艺的工程应用提供了重要的技术参考。The direct discharge of colored dissolved organic matter(CDOM)residuals in the effluent from wastewater treatment plants poses potential threats to the environment.This study employs the UV/O_(3)/H_(2)O_(2) combined technology for the advanced treatment of the effluent,and investigates the removal efficiency of CDOM under factors such as light exposure time,O3 flow rate,and pH value through three-dimensional fluorescence spectroscopy analysis.The research findings demonstrate that the UV/O_(3)/H_(2)O_(2) process can effectively eliminate CDOM fluorescence components.The optimal reaction conditions are determined through response surface analysis,with a light exposure time of 37 min,an O3 flow rate of 0.7 L/min,and a pH value of 9.The predicted and actual removal rates are 85.79%and 83.38%,respectively,validating that the response surface method can effectively describe the degradation reaction process of the UV/O_(3)/H_(2)O_(2) process.This study provides significant technical guidance for the engineering application of the UV/O_(3)/H_(2)O_(2) oxidation process.

关 键 词：UV/O_(3)/H_(2)O_(2)工艺 CDOM 三维荧光光谱 响应面法(RSM) 

分 类 号：X522[环境科学与工程—环境工程]