Degradation of 4-nonylphenol in bromide-containing water by UVC/O3/TiO2-combination processes: Impacts on trihalomethanes and haloacetic acids formation
The presence of nonylphenol (NP) in bromide-containing water contributed to the formation of regulated disinfection by products (DBPs): trihalomethanes-4 (THM4) and haloacetic acids-5 (HAA5). This study was conducted to determine the impact of ozonation initial pH and UVC-combination process in NP,...
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KeAi Communications Co., Ltd.
2025-06-01
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| Series: | Emerging Contaminants |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405665025000058 |
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| author | Muammar Qadafi Raden Tina Rosmalina Hanny Meirinawati Widyarani Diana Rahayuning Wulan |
| author_facet | Muammar Qadafi Raden Tina Rosmalina Hanny Meirinawati Widyarani Diana Rahayuning Wulan |
| author_sort | Muammar Qadafi |
| collection | DOAJ |
| description | The presence of nonylphenol (NP) in bromide-containing water contributed to the formation of regulated disinfection by products (DBPs): trihalomethanes-4 (THM4) and haloacetic acids-5 (HAA5). This study was conducted to determine the impact of ozonation initial pH and UVC-combination process in NP, its precursor properties to THM4 and HAA5, degradation. The UVC-combination process was conducted with standalone UVC, UVC/O3, and photocatalytic ozonation using UVC/O3/TiO2. All the process was conducted for 5, 10, 15, 20, 25, and 30min. The samples that have gone through the UVC-combination process were then chlorinated for 24 h to determine the formation of DBPs. The standalone UVC process was sufficient to degrade NP in water with a removal efficiency of 78.99 %. In addition, the UVC/O3 and UVC/O3/TiO2 process enhances significantly the NP degradation, achieving 91.15 % and 99.15 % respectively. Although the NP was successfully degraded during the UVC-combination process, the formation of THM4 and HAA5 increased significantly. The UVC/O3 process is the best choice in removing the NP and THM4 and HAA5 formation with 84.34 %, 94.27 %, and 62.19 % respectively after 5min irradiation process. |
| format | Article |
| id | doaj-art-b9a6e50cf05444249c1601b9f5f54f9f |
| institution | Kabale University |
| issn | 2405-6650 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | KeAi Communications Co., Ltd. |
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| series | Emerging Contaminants |
| spelling | doaj-art-b9a6e50cf05444249c1601b9f5f54f9f2025-01-24T04:45:25ZengKeAi Communications Co., Ltd.Emerging Contaminants2405-66502025-06-01112100471Degradation of 4-nonylphenol in bromide-containing water by UVC/O3/TiO2-combination processes: Impacts on trihalomethanes and haloacetic acids formationMuammar Qadafi0Raden Tina Rosmalina1Hanny Meirinawati2 Widyarani3Diana Rahayuning Wulan4Research Center for Environmental and Clean Technology, National Research and Innovation Agency, Jalan Sangkuriang, Bandung, 40135, Indonesia; Corresponding author.Research Center for Environmental and Clean Technology, National Research and Innovation Agency, Jalan Sangkuriang, Bandung, 40135, IndonesiaResearch Center for Environmental and Clean Technology, National Research and Innovation Agency, Jalan Sangkuriang, Bandung, 40135, IndonesiaResearch Center for Environmental and Clean Technology, National Research and Innovation Agency, Jalan Sangkuriang, Bandung, 40135, Indonesia; Collaborative Research Center for Zero Waste and Sustainability, Jl. Kalijudan 37 Surabaya, 60114, IndonesiaResearch Center for Environmental and Clean Technology, National Research and Innovation Agency, Jalan Sangkuriang, Bandung, 40135, Indonesia; Collaborative Research Center for Zero Waste and Sustainability, Jl. Kalijudan 37 Surabaya, 60114, IndonesiaThe presence of nonylphenol (NP) in bromide-containing water contributed to the formation of regulated disinfection by products (DBPs): trihalomethanes-4 (THM4) and haloacetic acids-5 (HAA5). This study was conducted to determine the impact of ozonation initial pH and UVC-combination process in NP, its precursor properties to THM4 and HAA5, degradation. The UVC-combination process was conducted with standalone UVC, UVC/O3, and photocatalytic ozonation using UVC/O3/TiO2. All the process was conducted for 5, 10, 15, 20, 25, and 30min. The samples that have gone through the UVC-combination process were then chlorinated for 24 h to determine the formation of DBPs. The standalone UVC process was sufficient to degrade NP in water with a removal efficiency of 78.99 %. In addition, the UVC/O3 and UVC/O3/TiO2 process enhances significantly the NP degradation, achieving 91.15 % and 99.15 % respectively. Although the NP was successfully degraded during the UVC-combination process, the formation of THM4 and HAA5 increased significantly. The UVC/O3 process is the best choice in removing the NP and THM4 and HAA5 formation with 84.34 %, 94.27 %, and 62.19 % respectively after 5min irradiation process.http://www.sciencedirect.com/science/article/pii/S2405665025000058NonylphenolBromide-containing waterTrihalomethanesHaloacetic acidUVC-Combination process |
| spellingShingle | Muammar Qadafi Raden Tina Rosmalina Hanny Meirinawati Widyarani Diana Rahayuning Wulan Degradation of 4-nonylphenol in bromide-containing water by UVC/O3/TiO2-combination processes: Impacts on trihalomethanes and haloacetic acids formation Emerging Contaminants Nonylphenol Bromide-containing water Trihalomethanes Haloacetic acid UVC-Combination process |
| title | Degradation of 4-nonylphenol in bromide-containing water by UVC/O3/TiO2-combination processes: Impacts on trihalomethanes and haloacetic acids formation |
| title_full | Degradation of 4-nonylphenol in bromide-containing water by UVC/O3/TiO2-combination processes: Impacts on trihalomethanes and haloacetic acids formation |
| title_fullStr | Degradation of 4-nonylphenol in bromide-containing water by UVC/O3/TiO2-combination processes: Impacts on trihalomethanes and haloacetic acids formation |
| title_full_unstemmed | Degradation of 4-nonylphenol in bromide-containing water by UVC/O3/TiO2-combination processes: Impacts on trihalomethanes and haloacetic acids formation |
| title_short | Degradation of 4-nonylphenol in bromide-containing water by UVC/O3/TiO2-combination processes: Impacts on trihalomethanes and haloacetic acids formation |
| title_sort | degradation of 4 nonylphenol in bromide containing water by uvc o3 tio2 combination processes impacts on trihalomethanes and haloacetic acids formation |
| topic | Nonylphenol Bromide-containing water Trihalomethanes Haloacetic acid UVC-Combination process |
| url | http://www.sciencedirect.com/science/article/pii/S2405665025000058 |
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