The Effect of Different Anions on Bromate Formation When Electrolyzing Bromide-containing Water

China Rural Water and Hydropower ›› 2018 ›› (10) : 37-42.

JI Wen-jing^1，2 ，ZHANG Feng^1，2，LU Shi-qi ¹ ，LI Hong-yan¹ ，WANG Chao-xu¹ ，CUI Jiang-guo^1，2

Author information +

History +

Abstract

Coexisting ions may affect the formation of BrO3- during electrochemical disinfection. This experiment used the platinum electrode as anode electrolyzed the bromide-containing water. The effects on BrO3- formation with different concentrations of SO42-, Cl-, HCO3- and NO3- were took into consideration. Under neutral conditions, the increase of SO42- could inhibit the formation of BrO3-; the persulfate and peroxide single sulfate generated on the surface of Pt electrode could occupy the active sites and reduced the probability of Br- being directly or indirectly oxidized, which reduced BrO3- formation. The coexisting Cl-, HCO3- and NO3- brought more BrO3- with more concentrations. The HOCl/ClO- produced by Cl- was the main cause to promote BrO3- formation. Reduction reaction of NO3- was easy occurred on cathode, reducing the reduction probability of BrO3- in the system of non-slotted electrode could promote BrO3- generation, on the other hand, the potential risk of NO2- would take place. Under the conditions of same ionic strength(12.56mmol?kg-1), comparing the results of BrO3- generation, the NO3- promoting efficiency was obvious than coexisting Cl- and HCO3-; After 120min electrolysis, BrO3- generation with NO3- was 3.21 times and 2.69 times of Cl- and HCO3- conditions, respectively.

Key words

platinum electrode / electrochemical oxidation / bromide / bromate / coexisting anions

Cite this article

EndNote

Ris (Procite)

Bibtex

Download Citations

JI Wen-jing , ZHANG Feng, LU Shi-qi , LI Hong-yan , WANG Chao-xu , CUI Jiang-guo. The Effect of Different Anions on Bromate Formation When Electrolyzing Bromide-containing Water. China Rural Water and Hydropower. 2018, 0(10): 37-42

References

[1]MEH Bergmann.Drinking Water Disinfection by In-line Electrolysis: Product and Inorganic By-Product Formation[M]//C. Comninellis, G. Chen (Eds.). Electrochemistry for the environment. Springer Science + Business Media, New York, 2010: 163—204.

[2]MEH Bergmann, AS Koparal, T Iourtchouk.Electrochemical Advanced Oxidation Processes, Formation of Halogenate and Perhalogenate Species: A Critical Review. Critical Reviews in Environmental Science and Technology. 2014; 44(4): 348—390.[J].Science and Technology, 2014, 44(4):348-390

[3]姜俐峰.不同阳极电化学消毒过程中溴酸盐的形成[J]., 2016, :-

[4]MK Kim, KD Zoh.Effects of natural water constituents on the photo-decomposition of methylmercury and the role of hydroxyl radical. Science of the Total Environment, 2013; 449(2): 95—101.

[5]任学昌, 张国珍, 朱亚敏, 等.水体中常见无机阴离子对TiO2薄膜光催化还原Cr(Ⅵ)的影响. 环境化学, 2009; 28(6): 829—832. [6]UV Gunten, J Hoigen.Bromate Formation during Ozonization of Bromide-Containing Waters: Interaction of Ozone and Hydroxyl Radical Reactions. Environmental Science & Technology, 1994; 28(7): 1234—1242.

[7]P Xie, J Ma, W Liu, et al.Removal of 2-MIB and geosmin using UV/persulfate: contributions of hydroxyl and sulfate radicals. Water Research, 2015; 69:223—233.

[8]姜俐峰, 张峰, 崔建国, 等.电解含溴饮用水过程中溴酸盐的形成. 中国农村水利水电, 2017(1): 125—129.

[9]C Comninellis.Electrocatalysis in the electrochemical conversion/combustion of organic pollutants for waste water treatment. Electrochimica Acta, 1994; 39(11–12): 1857—1862.

[10]BE Conway, ?Y Phillips, SY Qian.Surface electrochemistry and kinetics of anodic bromine formation at platinum. Journal of the Chemical Society Faraday Transactions, 1995; 91(2): 283—293.

[11]S Ferro, ?AD Battisti.The Bromine Electrode. Part I: Adsorption Phenomena at Polycrystalline Platinum Electrodes. Journal of Applied Electrochemistry, 2004; 34(10): 981—987.

[12]S Ferro, ?C Orsan, ?AD Battisti.The bromine electrode Part II: reaction kinetics at polycrystalline Pt. Journal of Applied Electrochemistry, 2005; 35(3): 273—278.

[13]C Oloman.Electrochemical processing for the pulp and paper industry. 1996. [14]UM Borutzky, ?MEH Bergmann, ?J Wenzel, ?et al.Pseudomonas inactivation with electrolyzed water poor in chloride ions using BDD electrodes. Meeting of the International Society of Electrochemistry, 2006.

[15]冯玉杰.电化学技术在环境工程中的应用. 化学工业出版社, 2003: 32-36. [16]张冬梅.电化学催化还原去除水中硝酸根的研究[J]., 2013, :-

Funding

国家自然科学基金青年基金项目 ( 51408397， 41503074) ; 山西省住建厅科技项目( 163140324-Q) ; 山西省研究生联合培养基地人才培养项目( 2017JD13) ; 山西省自然科学基金( 201701D121126)

PDF(1503 KB)

267

Accesses

Citation

Detail

Sections

Recommended

Abstract
Key words
Cite this article
References
Funding

Received	Revised	Published
2018-04-16	2018-05-03	2018-10-15
Issue Date
2019-12-10

Please choose a citation manager