Abstract
A novel microfluidic photocatalytic oxidation system was developed to remove natural organic matter (e.g., humic acids) and control the formation of disinfection byproducts (DBPs) in drinking water after chlorination. The effeciency of microfluidic photocatalytic oxidation of humic acids (HA) was evaluated at different flow rates and initial pH. The formation of disinfection byproducts of treated samples after a 24 chlorination was quantified by Gas Chromatography - Mass Spectrometry. A conventional photocatalytic oxidation test was performed in a 250 ml bottle for comparison. The results showed that the microreactor has a higher efficiency on HA removal and a better control the DBP formation potential (DBPfp). The removal rate of HA in microreactor was reached to 45% in 2.3 min at pH of 5. The haloacetic acid formation potential in the bottle test was raised after treatment, whereas a reduction of 56.1% was achieved in the microfluidic device. Therefore, this quick treatment process has showed strong benefit for drinking water treatment.
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References
Bekbolet M (2020) An overview of photocatalytic drinking water treatment. Front Water Energ Nexus Nat Bas Sol Adv Technol Best Pract Environ Sustain 247–248
ENVC (2016) Drinking water safety in Newfoundland and labrador annual Report 2015. Retrieved from: https://www.gov.nl.ca/eccm/files/waterres-reports-drinking-water-annual-report-2015.pdf
Gora S, Sokolowski A, Hatat-Fraile M, Liang R, Zhou YN, Andrews S (2018) Solar photocatalysis with modified TiO2 photocatalysts: effects on NOM and disinfection byproduct formation potential. Environ Sci Water Res Technol 4(9):1361
Hoffmann MR, Martin ST, Choi W, Bahnemann DW (1995) Environmental applications of semiconductor photocatalysis. Chem Rev 95(1):69–96
Jing L, Chen B, Zhang BY, Li P (2015) Process simulation and dynamic control for marine oily wastewater treatment using UV irradiation. Water Res 81:101–112
Ling J, Husain T (2014) Technologies to remove DBPs in drinking water in Newfoundland and labrador—a review. In: Exploring solutions for sustainable rural drinking water systems, Memorial University of Newfoundland, St. John's, Canada
Liu B, Chen B, Zhang B, Song X, Zeng G, Lee K (2020) Photocatalytic ozonation of offshore produced water by TiO2 nanotube arrays coupled with UV-LED irradiation. J Hazard Mater 402:123456
Lyon BA, Milsk RY, Deangelo AB, Simmons JE, Moyer MP, Weinberg HS (2014) Integrated chemical and toxicological investigation of UV-chlorine/ chloramine drinking water treatment. Environ Sci Technol 48(12):6743. https://doi.org/10.1021/es501412n
Minnes S, Vodden K (2014) Exploring solutions for sustainable rural drinking water systems: a study of rural Newfoundland and Labrador drinking water systems. The Harris Centre, St.John's, Canada
Uyguner-Demirel CS, Birben NC, Bekbolet M (2017) Elucidation of background organic matter matrix effect on photocatalytic treatment of contaminants using TiO2: a review. Catal Today 284:202–214
Wang N, Zhang X, Wang Y, Yu W, Chan HLW (2014) Microfluidic reactors for photocatalytic water purification. Lab Chip 14(6):1074
Wang H, Zhu Y, Hu C, Hu X (2015) Treatment of NOM fractions of reservoir sediments: effect of UV and chlorination on formation of DBPs. Sep Purif Technol 154:228
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This research was supported by the Harris Centre-RBC Water Research and Outreach Fund and Memorial University.
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© 2023 Canadian Society for Civil Engineering
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Liu, B., Chen, B., Dong, G.H., Wu, F., Zhang, B.Y. (2023). Development of Microfluidic Photocatalytic Oxidation System for Drinking Water Treatment. In: Walbridge, S., et al. Proceedings of the Canadian Society of Civil Engineering Annual Conference 2021 . CSCE 2021. Lecture Notes in Civil Engineering, vol 249. Springer, Singapore. https://doi.org/10.1007/978-981-19-1061-6_43
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DOI: https://doi.org/10.1007/978-981-19-1061-6_43
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