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上传于：2016-10-12

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    188宝金博页面版: EFFECT OF BLENDING RATIO ON THE FORMATION OF BROMATE IN BLENDED DRINKING WATER SAMPLES DISINFECTED WITH OZONE

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    内容提示： Sixteenth International Water Technology Conference, IWTC 16 2012, Istanbul, Turkey 1 1 EFFECT OF BLENDING RATIO ON THE FORMATION OF BROMATE IN BLENDED DRINKING WATER SAMPLES DISINFECTED WITH OZONE Bassam Tawabini Earth Sciences Department, King Fahd University of Petroleum and Minerals (KFUPM) Saudi Arabia, Email: bassamst@kfupm.edu.sa ABSTRACT This bench-scale laboratory study was carried out to assess the potential formation of bromate (BrO 3 ) in drinking water samples prepared by blend...

    文档格式：PDF | 页数：11 | 浏览次数：115 | 上传日期：2016-10-12 08:18:02 | 文档星级：
    Sixteenth International Water Technology Conference, IWTC 16 2012, Istanbul, Turkey 1 1 EFFECT OF BLENDING RATIO ON THE FORMATION OF BROMATE IN BLENDED DRINKING WATER SAMPLES DISINFECTED WITH OZONE Bassam Tawabini Earth Sciences Department, King Fahd University of Petroleum and Minerals (KFUPM) Saudi Arabia, Email: bassamst@kfupm.edu.sa ABSTRACT This bench-scale laboratory study was carried out to assess the potential formation of bromate (BrO 3 ) in drinking water samples prepared by blending desalinated and brackish ground water mixed at different ratios when disinfected by ozone. Bromate is one of the ozonation byproducts known for its harmful health effects and therefore it is regulated by many local and international agencies to a maximum level of 10 µg/L. In this study, the potential formation of bromate in blended water samples was investigated under different treatment conditions including ozone dosage, temperature, and reaction time. Correlation between the quality of blended water and the extent of bromate formation was also considered in the study. Results indicated that as high as 307 ppb of bromate was detected when blended samples were spiked with 5 ppm ozone. The effect of blending ratio on the formation of bromate was observed only at ozone dosage of 5 ppm. Results also showed that temperature of water has significant effect on the levels of bromate formed, while reaction time showed negligible effect. Keywords : bromate, ozone, DBPs, blended water, disinfection, ozonation, desalinated water 1.INTRODUCTION The Kingdom of Saudi Arabia is located in an arid region with hot climate in limited rainfall conditions [Wheater et al, 1997]. It suffers from the shortage of fresh water sources such as lakes and rivers with very limited groundwater sources. Alternatively, sweater desalination becomes a major source of drinking water in Saudi Arabia. Several evaporation and reverse osmosis (RO) desalination plants were built along the coast of Red Sea and Arabian Gulf to supply the country with the needed desalinated water. The Kingdom is considered as the world’s largest producer of desalinated water where desalination plants supply more than 50-70% of municipal water [IDA, 2002; Al-Mudaiheem and

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