超声波协同纳米铁降解2,4-二氯苯酚的研究  

Studies on the Degradation of 2,4 - Dichlorophenol by Ultrasound Cooperating with Nanoscale Iron

作　　者：张选军[1] 戴友芝[1] 宋勇[1] 唐受印[2] 张慧[1] 

机构地区：[1]湘潭大学环境工程系,湖南湘潭411105 [2]湖南工程学院,湖南湘潭411104

出　　处：《湘潭大学自然科学学报》2005年第3期87-90,共4页Natural Science Journal of Xiangtan University

基　　金：国家自然科学基金资助项目(200477034);湖南省教委资助项目(04C750)

摘　　要：通过间歇性实验对超声波协同纳米铁降解2,4-二氯苯酚进行了研究,结果表明:协同作用大大提高了降解率, 如在反应时间为2 h,纳米铁体系对2,4-二氯苯酚的降解率为11.3%,超声波体系对2,4-二氯苯酚的降解率为36%,两种反应体系的降解率迭加值为47.3%,而协同体系对2,4-二氯苯酚的降解率则达到88.3%.同时考察了时间、声强、pH、2,4-二氯苯酚初始浓度、反应器的直径和纳米铁粉的投加量等对协同反应降解效果的影响.The degradation of 2,4 - dichlorophenol by uhrasound cooperating nanoscale iron was studied through intermittence experiments. The results show that the cooperation improved the degradation rate remarkable： the degradation with nanoscalc iron alone is 11.3% and uhrasound alone is 36%, it is 47.3% for the amount with two, however ,the degradation of uhrasound cooperating with nanoscale into is 88.3% . At the same time, all kinds of effect factor e.g. ： time, power intensity, pH ,initialing concentration, the diameter of reactor and quantity of nanoscale iron was introdueed.

关 键 词：纳米铁 超声波 协同作用 2 4-二氯苯酚 

分 类 号：X783[环境科学与工程—环境工程]