2,6-二硝基甲苯在土壤中的吸附行为

doi:10.12030/j.cjee.201601048

CORC > 北京大学 > 环境科学与工程学院

	2,6-二硝基甲苯在土壤中的吸附行为; Adsorption behavior of 2,6-dinitrotoluene in soil
	徐文杰 ; 赵泉林 ; 张振中 ; 姜振明 ; 苏宏平 ; 崔立莉 ; 叶正芳
刊名	环境工程学报
	2017
关键词	土壤吸附动力学热力学 2,6-DNT Soil 2,6-DNT adsorption kinetics thermodynamics
DOI	10.12030/j.cjee.201601048
英文摘要	采用静态吸附实验,对供试土壤吸附2,6-二硝基甲苯(2,6-DNT)的过程进行了研究,探讨了土壤对2,6-DNT吸附的动力学及热力学特征,并研究了溶液pH、土壤投加量对吸附的影响.结果表明:2,6-DNT在供试土壤上的吸附在24 h达到平衡,吸附过程符合拟二级动力学模型;Freundlich模型能够很好的拟合土壤对2,6-DNT的吸附等温曲线;热力学计算结果表明供试土壤对2,6-DNT的吸附反应是自发和吸热过程;pH对吸附过程影响不大,随着土壤投加量的增加,2,6-DNT去除率不断提高,单位土壤的平衡吸附量不断降低并且逐渐趋于平缓.; A static adsorption test was conducted to investigate the 2,6-DNT adsorption properties of soil by studying its kinetic and thermodynamic characteristics.The effects of pH and soil dosage on 2,6-DNT adsorption were also investigated.The results showed that the adsorption of2,6-DNT by soil reached equilibrium after 24 h;the adsorption could be described well by pseudo-second order kinetics.The Freundlich model fit the adsorption isothermal curve.The thermodynamic analytical results showed that the adsorption was spontaneous and endothermic.pH had little effect on the adsorption process.As the soil dosage increased,the removal efficiency of 2,6-DNT increased,while the equilibrium absorption capacity decreased.; 北京市科技计划项目; 中国科学引文数据库(CSCD); 4; 2542-2547; 11
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/467890]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	徐文杰,赵泉林,张振中,等. 2,6-二硝基甲苯在土壤中的吸附行为, Adsorption behavior of 2,6-dinitrotoluene in soil[J]. 环境工程学报,2017.
APA	徐文杰.,赵泉林.,张振中.,姜振明.,苏宏平.,...&叶正芳.(2017).2,6-二硝基甲苯在土壤中的吸附行为.环境工程学报.
MLA	徐文杰,et al."2,6-二硝基甲苯在土壤中的吸附行为".环境工程学报 (2017).