Enhancing the adsorption of disinfection by-products onto activated carbon using TiO2 nanoparticles

Year 2019, Volume: 3 Issue: 1, 67 - 71, 28.06.2019

Ahmed Hesham , Rafat Moustafa

https://doi.org/10.32571/ijct.481482

Cited By: 2

Abstract

The removal of contaminants from consumable waters by the traditional water treatment techniques is highly difficult. Disinfection of water alludes to the inactivation or pulverization of unsafe living pathogenic beings, which living in the water. Occurrence of disinfection by products (DBPs) during disinfection normally demonstrates lethal impacts on human health. Granular activated carbon (GAC) has the oldest history of decreasing of organic matters, but its role is reducing by time. TiO2 is used to accelerate the removal of the DBPs. TiO2 nanoparticles have good adsorption phenomena on the removal of those organic compounds at various pHs and temperatures and give good results. This study proved that TiO2 nanoparticles enhanced the efficiency of GAC to remove DBPs from water. While the elimination of trihalomethanes (THMs), dichloroacetic acid (DCAA) and trichloroacetic acid (TCAA) using 0.5 g of GAC was determined as 61.7, 69.8 and 83.2% respectively, the elimination of them by 0.1 g of TiO2 nanoparticles:GAC (1:1) was estimated as 100, 96 and 100%, respectively.

Keywords

Disinfection by-products, drinking water, nanoparticles TiO2, THMs

References

• 1. Rakness, K. L. Ozone in drinking water treatment: process design, operation, and optimization, 1st ed.; American Water Works Association, Colorado, USA, 2005.
• 2. Alexandrou, L.; Meehan, B. J.; Jones, O. A. Sci. Total Environ. 2018, 637, 1607-1616.
• 3. Selvam, R.; Muniraj, S.; Duraisamy, T.; Muthunarayanan, V. Appl. Water Sci. 2018, 8 (5):135.
• 4. Fakour, H.; Lo, S. L. Sci. Rep. 2018, 8(1), 5709.
• 5. Tak, S.; Vellanki, B. P. J. Water Health 2018, 16(5), 681-703.
• 6. Sharma, A.; Ahmad, J.; Flora, S. J. S. Environ. Res. 2018, 167, 223-233.
• 7. Deb, A. Photocatalytic degradation of Benzophenone 3 in aqueous media under UV light irradiation. Master’s Thesis, Lappeenranta University of Technology School of Engineering Science, Finland, 2018.
• 8. Dong, R.; Cai, Y.; Yang, Y.; Gao, W.; Ren, B. Accounts Chem. Res. 2018, 51(9), 1940-1947.
• 9. Gora, S. L.; Andrews, S. A. Chemosphere 2019, 218, 52-63.
• 10. US EPA, Method 551. Determination of chlorination disinfection by-products and chlorinated solvents in drinking water by liquid-liquid extraction and gas chromatography with electron-capture detection, Environmental Monitoring Systems Laboratory, Office of Research and Development, Cincinnati, 1990.
• 11. Toroz, I.; Uyak, V. Desalination 2005, 176 (1-3),
• 12. Flickinger, B.; Hinshaw, J. V. GC instruments and accessories at the 54th Pittsburgh Conference. LC-GC: magazine of liquid and gas chromatography, 21 (5), 446-457, North America, 2003, 127-141.
• 13. Saini, H. K. U.S. Patent No. 9,903,844. Washington, DC: U.S. Patent and Trademark Office, 2018.
• 14. Andersson, A.; Ashiq, M. J.; Shoeb, M.; Karlsson, S.; Bastviken, D.; Kylin, H. Environ. Sci. Pollut. R. 2019, 26 (8), 7305-7314.