磁性黏土颗粒对污染土壤中镉去除作用的初步研究

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	磁性黏土颗粒对污染土壤中镉去除作用的初步研究
	贠豪 1,3; 李远 1,3; 杨帅 1,3; 邱炜 1,2; 刘国明 1,2; 朱侠 1,2; 司绍诚 1,3; 骆永明 1,2,3
刊名	土壤
	2021
卷号	53 期号:5 页码:1015-1022
关键词	镉吸附法磁性材料黏土矿物原位修复农田土壤
ISSN号	0253-9829
其他题名	Preliminary Study on Removal of Cadmium from Contaminated Soil by Magnetic Clay Particles
文献子类	期刊论文
英文摘要	A millimeter-level magnetic clay particle adsorption material recorded as MSAZ was used to test its soil Cd removal efficiency.For different simulated Cd-contaminated soils,the results showed that the optimal mass ratio of MSAZ:soil was 1︰5.With this application ratio,the removal rate of 0.43 mol/L HNO_3 extracted Cd in the simulated red soil was as high as 95% in a single application,and the removal rates could also reach 75%-80% in the brown and black soils.For dryland soils with high Cd background values and Cd-contaminated paddy soils,the results showed that the removal rate of 0.43 mol/L HNO_3 extracted Cd by MSAZ was about 40% from the two soils in a single application.After five times of repeated use,the cumulative removal rate of 0.43 mol/L HNO_3 extracted Cd on MSAZ reached 98% from the actual Cd-contaminated paddy soil.The MSAZ still maintained 85% adsorption capacity,and its recovery rate was higher than 80% after five reusing cycles.The magnetic clay particles tested in this study has excellent soil Cd removal performance and showed potential application prospect,which can provide materials and technical supports for subsequent in-situ treatment of Cd pollution in farmland soil.
语种	中文
CSCD记录号	CSCD:7081726
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/34241]
专题	烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
作者单位	1.中国科学院大学,北京100049 2.中国科学院土壤环境与污染修复重点实验室(南京土壤研究所),南京210008; 3.中国科学院海岸带环境过程与生态修复重点实验室(烟台海岸带研究所),山东省海岸带环境过程重点实验室,中国科学院烟台海岸带研究所,山东烟台264003;
推荐引用方式 GB/T 7714	贠豪,李远,杨帅,等. 磁性黏土颗粒对污染土壤中镉去除作用的初步研究[J]. 土壤,2021,53(5):1015-1022.
APA	贠豪.,李远.,杨帅.,邱炜.,刘国明.,...&骆永明.(2021).磁性黏土颗粒对污染土壤中镉去除作用的初步研究.土壤,53(5),1015-1022.
MLA	贠豪,et al."磁性黏土颗粒对污染土壤中镉去除作用的初步研究".土壤 53.5(2021):1015-1022.