O_3-颗粒活性炭联用去除对二甲基异莰醇研究  

Study on the Removal Performance of 2-Methylisoborneol by O_3-GAC Combined

作　　者：王文东[1,2] 范银萍[1] 刘国旗[1] 刘荟[1] WANG Wcndong FAN Yinping LIU Guoqi LIU Hui(School of Environmental and Municipal Engineering, Xi＇an University of Architecture and Technology, Xi＇an 710055, China Department of Environmental Technology and Ecology, Yangtze Delta Region Institute of Tsinghua University, Jiaxing 314006, China)

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710055 [2]浙江清华长三角研究院生态环境研究所,浙江嘉兴314006

出　　处：《水处理技术》2017年第5期33-37,42,共6页Technology of Water Treatment

基　　金：国家自然科学基金项目(21007050);陕西省重大科技成果转化引导专项项目(216KTCG01-17);陕西省青年科技新星项目(2014KJXX-66)

摘　　要：以二甲基异茨醇(2-MIB)为研究对象,系统考察了臭氧-颗粒活性炭(O_3-GAC)联用工艺对水源水体中嗅味物质的去除性能。结果表明,混凝、沉淀和过滤等传统水质净化单元对2-MIB的去除能力有限,累积去除率在25%左右;而相同进水2-MIB含量条件下,O_3氧化和GAC吸附对2-MIB的去除率分别为50%和80%。随着水温的增加,GAC的吸附容量略有降低。GAC对2-MIB的吸附过程是自发的放热反应(ΔG~<0,ΔH~<0),符合准2级反应动力学和Freundlich等温吸附特征。2-methylisobomeol （2-MIB） was used as a research object to investigate removal performance of taste and odor compounds in water source by O3-GAC combined process. Experimental results indicated that the removal capacity 2-MIB by coagulation, sedimentation, filtration and other traditional water purification unit was limited and the cumulative removal rate was about 25%. While under the same 2-MIB content of influent, the removal rates of 2-MIB by 03 oxidation and GAC adsorption unit were 50% and 80% respectively. However, the adsorption capacity of GAC decreases slightly with the increase of water temperature. The adsorption process of 2-MIB by GAC was a kind of spontaneous and exothermic reaction （AGe〈0, AHe〈0）, also followed the pseudo second-order kinetics and Freundlich isotherm adsorption characteristics.

关 键 词：二甲基异莰醇 饮用水 臭氧氧化 活性炭吸附 反应动力学 

分 类 号：TQ424.1[化学工程]