全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

天然土壤对水溶液中Pb2+的吸附

Keywords: 土壤,,吸附,热力学参数

Full-Text   Cite this paper   Add to My Lib

Abstract:

以天然土壤为吸附材料,处理水溶液中的Pb2+,研究3种土壤对水溶液中Pb2+的吸附过程并结合土壤的理化性质对吸附规律进行初步分析。结果表明,棕壤和钙层土对Pb2+的吸附能力远大于红壤,3种土壤对Pb2+的吸附动力学曲线与二次动力学方程有较好的拟合性;3种土壤吸附Pb2+的吸附等温线用Langmuir方程描述最为合适,其次是Temkin方程,再次是Frenudlich方程,钙层土对Pb2+的吸附受温度影响较为明显;由实验数据得出的反应热力学参数说明3种土壤对Pb2+的吸附是自发的吸热过程;Pb2+在饱和吸附的土壤表面覆盖率并不高;土壤对Pb2+的吸附能力受各种土壤理化性质的综合影响。

References

[1]  陈苏,孙铁珩,孙丽娜,等. Cd2+、Pb2+在根际和非根际土壤中的吸附-解吸行为.环境科学, 2007, 28(4): 843-851 Chen Su, Sun Tieheng, Sun Lina, et al. Sorption-desorption behavior of Cd2+ and Pb2+ in rhizosphere and bulk soil. Environmental Science,2007,28(4):843-851(in Chinese)
[2]  Mohsen S., Majid H., Maryam R. Competitive heavy metals adsorption on natural bed sediments of Jajrood River Iran. Environmental Earth Science,2011,62(3):519-527
[3]  Peter S., Tibor N., Ilona M., et al. Effect of soil composition on adsorption of lead as reflected by a study on a natural forest soil profile.Geoderma,2005,124(3-4):363-374
[4]  郑国璋.农业土壤重金属污染研究的理论与实践.北京:中国环境科学出版社,2007
[5]  杨金燕,杨肖娥,何振立,等.土壤中铅的吸附-解析行为研究进展.生态环境,2005,14(1):102-107 Yang Jinyan, Yang Xiaoe, He Zhenli, et al. Advance in the studies of Pb adsorption and desorption in soils. Ecology and Environment,2005,14(1):102-107(in Chinese)
[6]  吴光前,张鑫,惠慧,等.氧等离子体改性竹活性炭对苯胺的吸附特性.中国环境科学,2012,32(7):1188-1195 Wu Guangqian, Zhang Xin, Hui Hui, et al. Adsorption of aniline by oxygen plasma modified bamboo-based activated carbon. China Environmental Science,2012, 32(7):1188-1195(in Chinese)
[7]  张孟孟.溶解性有机质对土壤吸附汞的影响及其机理的研究.济南:山东大学硕士学位论文,2011 Zhang Mengmeng. Research on the effect and the mechanism of dissolved organic matter on the adsorption of Hg2+ by soils. Jinan: Master\'s Degree Thesis of Shandong University,2011(in Chinese)
[8]  王玉军,周东美,孙瑞娟,等.土壤中铜、铅离子的竞争吸附动力学.中国环境科学,2006,26(5):555-559 Wang Yujun, Zhou Dongmei, Sun Ruijuan, et al. Competitive adsorption kinetics of copper and lead ions in soils. China Environmental Science,2006,26(5):555-559(in Chinese)
[9]  姚敏.长江三角洲地区主要类型土壤对锌的吸附-解吸特性研究.南京:南京工业大学硕士学位论文,2005 Yao Min. Study on characters of zinc adsorption-desorpti-on of the principal types soil at Yangtze River delta. Nanjing: Master\'s Degree Thesis of Nanjing University of Technology,2005(in Chinese)
[10]  Arias M., Pérez-Novo C., Osorio F., et al. Adsorption and desorption of copper and zinc in the surface layer of acid soils.J. Colloid Inter. Sci.,2005,288(1):21-29
[11]  翟莹雪,魏世强.土壤富里酸对镉的吸附特征与影响因素的研究.农业环境科学学报,2006,25(5):1208-1211 Zhai Yingxue, Wei Shiqiang. Influencing factors and cadmium adsorption by soil fulvic acid. Journal of Agro-Environment Science,2006,25(5):1208-1211(in Chinese)
[12]  谢丹,徐仁扣,卞永荣,等.不同体系中不同土壤对Cu(Ⅱ),Pb(Ⅱ)和Cd(Ⅱ)吸附能力的比较.农业环境科学学报,2005,24(5):899-904 Xie Dan, Xu Renkou, Bian Yongrong, et al.Adsorption ability for Cu(Ⅱ),Pb(Ⅱ) and Cd(Ⅱ) among different soils under different systems. Journal of Agro-Environment Science,2005,24(5):899-904(in Chinese)
[13]  Serranoa S., Garridoa F., Campbell C. G., et al. Competitive sorption of cadmium and lead in acid soils of Central Spain. Geoderma,2005,124(1-2): 91-104
[14]  张磊,宋凤斌.土壤吸附重金属的影响因素研究现状及展望.土壤通报,2005,36(4):628-631 Zhang Lei, Song Fengbin. Adsorption of heavy metals by soils and its affecting factors. Chinese Journal of Soil Science,2005,36(4):628-631(in Chinese)

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133