摘要
紫外/过氧化氢(UV/H_(2)O_(2))法是处理市政污水中亚硝基二甲胺(NDMA)的有效方法。基于响应面模型研究了H_(2)O_(2)添加量、pH和光照强度对NDMA去除效率的影响,通过方差分析发现光照强度是影响去除率的最显著因素。通过响应面模型得出了上述3个因素与NDMA去除率的函数关系,当H_(2)O_(2)添加量为10 mg·L^(-1)、溶液pH为12、光照强度为8×10^(-11)E·s^(-1)时,NDMA去除率的预测值为97.36%,与96.97%的实验结果非常吻合。
The UV/H_(2)O_(2)method is an effective approach for removing N-nitrosodimethylamine(NDMA)in municipal wastewater.Based on a response surface model,the effects of H_(2)O_(2)concentration,pH and light strength on the removal efficiency of NDMA were studied.Through ANOVA analysis,it was found that light strength was the most significant factor affecting the removal efficiency of NDMA.A functional relationship between the above three factors and NDMA removal efficiency was obtained.When the concentration of H_(2)O_(2)was 10 mg·L^(-1),the pH was 12,and the light strength was 8×10^(-11)E·s^(-1),the predicted NDMA removal efficiency was 97.36%,which was very consistent with the experimental results of 96.97%.
作者
解晓敏
解秀祥
XIE Xiaomin;XIE Xiuxiang(Environmental Monitoring Center of Yishui County Branch of Linyi Ecological Environment Bureau,Linyi Shandong 276400,China)
出处
《当代化工》
CAS
2024年第5期1098-1101,共4页
Contemporary Chemical Industry
基金
山东省自然科学基础研究计划项目(项目编号:2022KW5088)。
关键词
响应面
紫外光
高级氧化法
市政污水
亚硝基二甲胺
Response surface model
Ultraviolet light
Advanced oxidation method
Municipal wastewater
N-nitrosodimethylamine(NDMA)
