中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 土壤、矿物对Cr(Ⅵ)吸附机制的研究 农业环境科学学报 1993 (04) 150-152+193
Position: Home > Articles > Mechanism of Adsorption of Cr (Ⅵ) by Soils and Minerals. Journal of Agro-Environment Science 1993 (04) 150-152+193

土壤、矿物对Cr(Ⅵ)吸附机制的研究

作  者：
陈英旭;朱祖祥;何增耀
单  位：
浙江农业大学环保系
关键词：
土壤;矿物;Cr(Ⅵ);吸附
摘  要：
本文研究了土壤、矿物对Cr(Ⅵ)的吸附机制,结果表明:土壤中铝对Cr(Ⅵ)的吸附起着主要作用,土壤、矿物对Cr(Ⅵ)的吸附机制和磷酸根相似,以专性吸附为主,吸附过程中伴随着羟基的释放,溶液中磷酸根、氟离子和硫酸根等阴离子的存在,强烈抑制了土壤、矿物对Cr(Ⅵ)的吸附,而C1~-和NO_3~-的影响较小。
译  名：
Mechanism of Adsorption of Cr (Ⅵ) by Soils and Minerals.
作  者：
Chen Yingxu et al. (Zhejiang Agricultural University, Hangzhou 310029)
摘  要：
The adsorption of Cr (Ⅵ) by soils and minerals was studied. Results showed that aluminium was the main fatter affecting the adsorption of Cr (Ⅵ). The mechanism of the adsorption of Cr (Ⅵ) by geothite and soils was somewhat similar to that of phosphate Basically, Cr (Ⅵ) was adsorbed through specific adsorption and could not be desorbed by Cl~- and NO_3~-. Cr (Ⅵ) adsorbed by geothite released-OH group. There was a significant correlation between the amount of Cr (Ⅵ) adsorbed and pH in geothite suspension. As the ionic strength of the solution increased the amounts of Cr (Ⅵ) adsorbed by minerals and soils decreased. The adsorption of Cr (Ⅵ) was greatly depressed in the presence of SO_4~(2-), WO_4~2, MoO_4~2, HPO_4~(2-), and H_2PO_4~-, which competed for anion adsorption sites.

相似文章

导出引用
计量
文章访问数: 13
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46