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Survey of Seawater Intrusion in the Pearl River Basin and Modeling Bromate Formation during Ozonation of the Raw Water |
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| Authors: | Chun-De Wu Cai-Xia Hu Ji-Yang Zhang Bin Hu Lin Wang Jia-Li Liang |
| Affiliation: | 1. The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters, Ministry of Education , Guangzhou , 510006 , China;2. College of Environmental Science and Engineering, South China University of Technology , Guangzhou , 510006 , China;3. College of Environmental Science and Engineering, South China University of Technology , Guangzhou , 510006 , China |
| Abstract: | Bromate formation has been identified as a significant barrier in the application of ozone during water treatment the downstream region of the Pearl River Basin that contains high levels of bromide. Seawater intrusion will increase bromide concentration in the inshore surface water. In this study, seawater intrusion in the Pearl River Basin was surveyed and modeling bromate formation during ozonation of the raw water affected by seawater intrusion was studied. Bromate formation models were developed to simulate the effects of the characteristics of water quality and the operating parameters of treatment processes on bromate formation during preozonation process and postozonation process. The results show that the downstream of the Pearl River Basin is affected seriously by seawater intrusion and the bromide mainly comes from seawater. Some empirical models were developed to estimate the concentration of bromate in ozonated surface raw water affected by seawater intrusion during the treatment process. |
| Keywords: | Ozonation Bromate Modeling Drinking Water Seawater Intrusion |