| 预臭氧与后臭氧-生物活性炭联用工艺研究 |
| 摘要点击 2233 全文点击 3032 投稿时间：2004-10-08 修订日期：2005-01-27 |
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| 中文关键词 饮用水 预臭氧 臭氧-生物活性炭 UV254 DBPFP 溴酸 |
| 英文关键词 drinking water preozonation O3-BAC UV254 DBPFP bromate |
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| 中文摘要 |
| 利用静态批量和动态连续试验初步研究了预臭氧及预臭氧与后臭氧-BAC组合工艺对南方某含溴离子水库水的处理效果和相应的处理条件.静态实验结果表明,预臭氧反应量在0.5～1.0mg/L范围内,在有效去除消毒副产物(DBPFP,主要包括THMFP和HAAFP)的同时,臭氧副产物溴酸可以控制在10μg/L以下,而继续增加臭氧反应量则会导致DBPFP的增加.当水中溴离子浓度达到96μg/L时,使用臭氧必须采取溴酸控制措施.连续动态实验结果表明,预臭氧与臭氧-生物活性炭组合工艺对于2μm以上颗粒物、CODMn、TOC等的去除均有明显的效果,可以进一步抑制DBPs的形成. |
| 英文摘要 |
| This study was conducted to illustrate the effectiveness of preozonation or O3-BAC or combination of these two process in controlling DBPs for treating a dam source water in South China through SBR and continuous flow(200L/h) experiments and the variables in the treatment train included the point of preozonation with respect to coagulation;the point of ozonation with respect to BAC,the ozone dosage required for preozonation and the Br-content of raw water.Results indicated the reduction in DBP formation potential closely paralleled the reduction in UV absorbance,and trihalomethane and haloacetic acid formation potential can be removed under a dose of preozone at 0.5～1.0mg/L,at the same time, ozone by-products(bromate and formaldehyde) can be controlled in low level.The continuous flow experiment results show that combination of preozonation and O3-BAC process has obviously positive effects on the removals of particles with a size above 2μm,CODMn,and TOC.However,DBPs formation can be controlled by the removal of organic matters. |
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