| 长江原水臭氧化生成溴酸根的影响因素 |
| 摘要点击 3194 全文点击 1564 投稿时间：2008-11-05 修订日期：2008-12-15 |
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| 中文关键词 溴酸根 臭氧化 长江原水 影响因素 |
| 英文关键词 bromate ozonation Yangtze River water impact factors |
| DOI 10.13227/j.hjkx.20090522 |
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| 中文摘要 |
| 同济大学污染控制与资源化研究国家重点实验室，上海200092 |
| 英文摘要 |
| A serial bench-scale experiments were conducted to study the effect of ammonia, pH, initial dissolved ozone and temperature on bromate formation during ozonation process in Yangtze river water, where bromide anion(Br-) was detected. Ammonia has little suppression effects on bromate production in Yangtze water at pH 7.35 and 0.6 mg/Ｌ ammonia background concentration, for it can't block the indirect-direct path. Within our experiment's conditions， at the initial dissolved ozone from 0.8 mg/Ｌ to 2.5 mg/Ｌ, it should be kept below 1.2 mg/Ｌ in order to avoid bromate standard violation. BrO-3 formation is sensitive to pH variation. BrO-3 production is 8 μg/L when pH decreases to 6.3. Lower temperature leads to both slower ozone decomposition and lower production of bromate. BrO-3 production is 9.1 μg/L at 10℃, 100 μg/L initial Br- and 1.6 mg/Ｌ initial dissolved ozone. |
