改性活性炭纤维吸附饮用水中卤乙酸的研究  

Adsorption of Haloacetic Acids in Drinking Water by Modified Activated Carbon Fiber

作　　者：龚增荣[1] 桑松表[1] 邓慧萍[2] 

机构地区：[1]浙江大学建筑设计研究院,浙江杭州310027 [2]同济大学长江水环境教育部重点实验室,上海200092

出　　处：《中国给水排水》2009年第17期70-72,75,共4页China Water & Wastewater

摘　　要：采用化学法、微波法、负载铁离子法等对活性炭纤维(ACF)进行改性,考察了改性后的ACF对饮用水中卤乙酸的吸附效果及影响因素。结果表明,经负载—微波改性后的ACF对DCAA、TCAA的吸附效果最好;负载—微波改性ACF的最佳条件:微波功率为250 W、溶液配比为Fe3+∶Fe2+=3∶2,在此条件下,改性ACF对DCAA、TCAA的吸附量比改性前的分别提高了22.0%、6.2%;在竞争吸附条件下,负载—微波改性ACF对卤乙酸的吸附量明显小于单底质条件下的。The activated carbon fiber （ACF） was modified by chemical method, microwave method and loading iron method. The adsorption effect and influence factors of haloacetic acids （HAAs） in drinking water by modified ACF were investigated. The results show that the adsorption effect of DCAA and TCAA by ACF modified by loading iron and microwave is best. The optimal reaction conditions for modifying ACF by loading iron and microwave are that the microwave power is 250 W and the ratio of Fe^3＋ and Fe^2＋ is 3 ： 2. Under these conditions, the adsorption quantities of DCAA and TCAA by modified ACF are increased by 22.0% and 6.2% respectively. The adsorption quantity of HAAs by ACF modified by loading iron and microwave under competitive adsorption conditions is less than that under single component conditions.

关 键 词：活性炭纤维 卤乙酸 微波改性 负载铁离子改性 化学法改性 

分 类 号：TU991.2[建筑科学—市政工程]