|
|
|
| Treatment of dye wastewater by base catalysis of peroxymonosulfate (PMS) |
| ZHAI Jun, LIU Pei-song, ZHAO Ju-jiao |
| 1. Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment, College of Environment and Ecology, Chongqing University, Chongqing 400045, China |
|
|
|
|
Abstract Three typical dyes, methylene blue, acid orange 7, and rhodamine B were treated by base catalysis of PMS in this study to investigate the optimal degradation conditions and the mechanism. Under the optimal condition (pH=10.8~11.5(methylene blue) or pH=10.0~10.8(acid orange 7 or rhodamine B), PMS dosage=100mg/L), the decolorization rate constants of methylene blue, acid orange 7 and rhodamine B were 0.097, 0.074, and 0.004min-1, respectively, and the decolorization efficiency were 95.1%, 93.3%, and 30.1%, respectively. The scavenging tests indicated that singlet oxygen played a critical role in the treatment by PMS/base for all of the three dyes. Based on the results of UV-Vis spectra analysis, it could be speculated that the faster decolorization rates of methylene blue and acid orange 7 could be due to the more efficient oxidation of the thiazide chromophore group and the azo bond by singlet oxygen.
|
|
Received: 24 June 2019
|
|
|
|
|
|
| [1] |
周宁,宇秉勇,宋红,等.染料工业废水产污情况分析[J]. 染料与染色, 2018,55(1):54-61. Zhou N, Yu B Y, Song H, et al. Analysis on the pollution of dye Industrial wastewater[J]. Dyestuffs and Coloration, 2018,55(1):54-61.
|
| [2] |
覃思月.Fenton体系处理染料废水耦合铁的回收与资源化研究[D]. 杭州:杭州电子科技大学, 2018. Qin S Y. Study on the dye wastewater treatment by Fenton system and iron recycling and resource utilization[D]. Hangzhou:Hangzhou Dianzi University, 2018.
|
| [3] |
陈文才. Fenton氧化法处理丽春红2R废水及其动力学研究[D]. 南京:南京农业大学, 2014. Chen W C. Ponceau 2R wastewater degradation with Fenton oxidation and its kinetic study[D]. Nanjing:Nanjing Agricultural University, 2014.
|
| [4] |
严梅,张青,谢慧芳,等.纳米Fe3O4负载聚苯胺对染料的协同催化降解[J]. 中国环境科学, 2017,37(4):1394-1400. Yan M, Zhang Q, Xie H F, et al. Load of PANI on nano-Fe3O4 and synergy catalytic degradation of dyes[J]. China Environmental Science, 2017,37(4):1394-1400.
|
| [5] |
黄振夫.非均相钴催化剂活化PMS降解染料的研究[D]. 杭州:浙江理工大学, 2016. Huang Z F. Heterogeneous cobalt catalysts for dye degradation based on PMS activation[D]. Hangzhou:Zhejiang Sci-Tech University, 2016.
|
| [6] |
徐朋飞,郭怡秦,王光辉,等.紫外活化过硫酸盐对甲基橙脱色处理实验研究[J]. 环境工程, 2017,35(11):58-61+89. Xu P F, Guo Y Q, Wang G H, et al. Experimental study on UV-activated persulfate for decolorization of methyl orange wastewater[J]. Environmental Engineering, 2017,35(11):58-61+89.
|
| [7] |
刘贝贝. Co/PMS体系降解染料废水[D]. 郑州:河南科技大学, 2018. Liu B B. Degradation of dyeingwaster by Co/PMS system[D]. Zhengzhou:Henan University of Science and Technology, 2018.
|
| [8] |
Huang Y F, Huang Y H. Behavioral evidence of the dominant radicals and intermediates involved in Bisphenol A degradation using an efficient Co2+/PMS oxidation process[J]. Journal of Hazardous Materials, 2009,167(1-3):418-426.
|
| [9] |
Qi C D, Liu X T, Ma J, et al. Activation of peroxymonosulfate by base:Implications for the degradation of organic pollutants[J]. Chemosphere, 2016,151:280-288.
|
| [10] |
Nie M H, Deng Y W, Nie S H, et al. Simultaneous removal of bisphenol A and phosphate from water by peroxymonosulfate combined with calcium hydroxide[J]. Chemical Engineering Journal. 2019,369:35-45.
|
| [11] |
Neta P, Huie R E, Ross A B, Rate constants for reactions of inorganic radicals in aqueous solution[J]. Journal of Physical and Chemical, Reference Data, 1988,17(3):1027-1284.
|
| [12] |
Wang X, Dong W, Brigante M, et al. Hydroxyl and sulfate radicals activated by Fe(III)-EDDS/UV:comparison of their degradation efficiencies and influence of critical parameters[J]. Applied Catalysis B:Environmental, 2019,245:271-278.
|
| [13] |
Dai D J, Yang Z Y, Yao Y Y, et al. Highly efficient removal of organic contaminants based on peroxymonosulfate activation by iron phthalocyanine:mechanism and the bicarbonate ion enhancement effect[J]. Catal. Sci. Technol., 2017,7:934-942.
|
| [14] |
颜桂炀.ZnS/AIPO-5复合材料光催化降解亚甲基蓝[C]//中国化学会分子筛专业委员会.第14次全国分子筛学术年会论文集——微孔介孔材料科学及在新能源与节能、减排中的应用.中国化学会分子筛专业委员会:中国化学会, 2008:5. Yan G Y. Photocatalytic degradation of methylene blue over ZnS/AIPO-5composite[C]//CZA 2008:14th annual symposium on energy and emission related MMM science. Chinese Zeolite Association:Chinese Chemical Society, 2008:5.
|
| [15] |
程金苹.三维电极法处理酸性橙7(AO7)模拟染料废水的研究[D]. 上海:华东师范大学, 2017. Cheng J P. Treatment of acid orange 7(AO7) simulated dye wastewater by three-dimensional electrode method[D]. Shanghai:East China Normal University, 2017.
|
| [16] |
田东凡,王玉如,宋薇,等.UV/PMS降解水中罗丹明B的动力学及反应机理[J]. 环境科学学报, 2018,38(5):1868-1876. Tian D F, Wang Y R, Song W, et al. Degradation of rhodamine B in aqueous solution by UV/PMS system:kinetics and reaction mechanism[J]. Acta Scientiae Circumstantiae, 2018,38(5):1868-1876.
|
| [17] |
Hu W R, Xie Y, Lu S, et al. One-step synthesis of nitrogen-doped sludge carbon as a bifunctional material for the adsorption and catalytic oxidation of organic pollutants[J]. Science of The Total Environment, 2019,680:51-60.
|
|
|
|
