Bromate Control by UVC and UVA Treatment in Drinking Water

Abstract:

In order to study the effect and influencing factors of bromate removal by ultraviolet treatment in drinking water, by carrying out laboratory test in simulated water and raw water samples, the action of UVC and UVA on bromate were investigated. The results indicated that bromate transformes into bromine ion under UVC treatment, but there was a small amount of UVA in the UVC lamp emission spectrum. Separate experiments on UVA treatment of bromate indicated that UVA could be considered as an interference factor for UVC treatment of bromate, and it should be restricted in the UVC lamp emission. The conversion of bromate to bromide was inhibited by suspended matter, which led to a rise of water turbidity and had influence on the reduction of bromate by UVC. When the water pH was 5.5~9 the same UV dose, the reduction of the bromate concentration by UVC treatment did not change significantly.

• Periodical: Advanced Materials Research (Volumes 807-809)
• Pages: 1455-1458
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.807-809.1455
• Online since: September 2013
• Authors: Si Chen Chen, Qi Zhu, Dong Mei Liu, Fu Yi Cui, Lei Fang, Di Ma
• Keywords: Bromate, Drinking Water, UVA Treatment, UVC Treatment

References

[1] K. Tyrovola, E. Diamadopoulos, Bromate formation during ozonation of groundwater in coastal areas in Greece, Desalination 176 (2005) 201-209.

DOI: 10.1016/j.desal.2004.10.018

[2] A. Ana, M. Monica, S. Goncalo, et al, Bromate removal by anaerobic bacterial community: Mechanism and phylogenetic characterization, Journal of Hazardous Materials 197 (2011) 237-243.

DOI: 10.1016/j.jhazmat.2011.09.076

[3] U. V. Gunten, Ozonation of drinking water: part II, disinfection and by-product formation in presence of bromide, iodide or chlorine, Water Research 37 (7) (2003) 1469-1487.

DOI: 10.1016/s0043-1354(02)00458-x

[4] B. Amit, Y. H. Choia, Y. J. Yoona, et al, Bromate removal from water by granular ferric hydroxide (GFH), Journal of Hazardous Materials, 2009, 170: 134-140.

DOI: 10.1016/j.jhazmat.2009.04.123

[5] R. Hofmann, R. C. Andrews, Ammonical bromamines: a review of their influence on bromate formation during ozonation, Water Research 2001; 35(3): 599-604.

DOI: 10.1016/s0043-1354(00)00319-5

[6] T. Bassam, A Z. Bdulrazaq, Bromate control in phenol-contaminated water treated by UV and ozone processes, Desalination 197 (2010) 1-4.

[7] G GORDON, R. D. GAUW, G. L. EMMERT, et al, Chemical reduction methods for bromate ion removal, American Water Works Association 94, 2 (2002) 91-98.

DOI: 10.1002/j.1551-8833.2002.tb09410.x

[8] Tong Zhang, Study on the Degradation Mechanism of Bromate in Nano-TiO2 Photcatalytic system (In Chinese), Master Dissertation of Beijing Forestry University (2009).