活化过硫酸盐技术处理有机染料废水  

Degradation of organic dye wastewater using activation of activation of persulfate

作　　者：宋雄伟 罗伟[2] 吴忆 黄影 黄闻宇 王双飞 SONG Xiong-wei;LUO Wei;WU Yi;HUANG Ying;HUANG Wen-yu;WANG Shuang-fei(School of Resources,Environment and Materials,Guangxi University,Nanning 530004,China;School of Civil Engineering,Southeast University,Nanjing 211189,China;Key Laboratory of Cleaner Pulping and Papermaking and Pollution Control in Guangxi,Nanning 530004,China;School of Light Industry and Food Engineering,Guangxi University,Nanning 530004,China;Guangxi Bossco Environmental Protection Technology Co.,Ltd.,Nanning 530007,China)

机构地区：[1]广西大学资源环境与材料学院,广西南宁530004 [2]东南大学土木工程学院,江苏南京211189 [3]广西清洁化制浆造纸与污染控制重点实验室,广西南宁530004 [4]广西大学轻工与食品工程学院,广西南宁530004 [5]广西博世科环保科技股份有限公司,广西南宁530007

出　　处：《广西大学学报（自然科学版）》2021年第6期1667-1674,共8页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(21367003);广西科技重大专项(桂科AA17129001);广西清洁化制浆造纸与污染控制重点实验室开放基金项目(KF201724)。

摘　　要：为了研究不同因素对活化过硫酸盐体系处理有机染料废水的影响,并获得处理效果较好的优化体系,考察过硫酸盐的初始浓度,亚铁离子的浓度以及反应体系中的温度对脱色亚甲基蓝的影响。实验结果表明:热-Na_(2)S_(2)O_(8)体系中,[Na_(2)S_(2)O_(8)]=8.0 mmol/L,T=70℃时,20 min内亚甲基蓝脱色率达99%;光-Na_(2)S_(2)O_(8)体系中,[Na_(2)S_(2)O_(8)]=8.0 mmol/L时,90 min内亚甲基蓝脱色率达99%;Fe^(2+)-Na_(2)S_(2)O_(8)体系中,当[Na_(2)S_(2)O_(8)]=1.2 mmol/L,[Fe^(2+)]=0.20 mmol/L时,20 min内亚甲基蓝的脱色率达99%,增大或减少均导致效率降低。出于综合经济性考虑,热-Na_(2)S_(2)O_(8)体系可作为最佳选择体系。This research aims to study the influence of different factors on the activated persulfate system for the treatment of organic dye wastewater,and to obtain a better treatment effect of the optimized system.The effect of initial concentration of persulfate and Fe^(2+),as well as temperature on the efficinence of reaction system,were investigated and the optimal system for methylene blue degradation was obtained.The results show that conditions of 8.0 mmol/L Na_(2)S_(2)O_(8) and 70℃in a thermal-Na_(2)S_(2)O_(8) system,the removal efficience of methylene blue reached 99%after 20 min of degradation.While in the UV-Na_(2)S_(2)O_(8) system,methylene blue removal efficiency was 99%within 90 min under the conditions of 8.0 mmol/L Na_(2)S_(2)O_(8) in the Fe^(2+)-Na_(2)S_(2)O_(8) system,methylene blue was 99%within 20 min,either increase or decrease of the concentration led to decrease of the degradation efficiency.For the consideration of comprehensive economy,thermal-Na_(2)S_(2)O_(8) system can be the best choice.

关 键 词：亚甲基蓝 活化过硫酸盐 硫酸根自由基 

分 类 号：X703.1[环境科学与工程—环境工程]