Removal of Heavy Metals from Industrial Sludge Using Soil Washing Technique

被引：0
|
作者：
Sumalatha, J. [1 ]
Naveen, B. P. [2 ]
Malik, R. K. [2 ]
机构：
[1] RIT, Dept Civil Engn, Bangalore 560054, Karnataka, India
[2] Amity Univ, Dept Civil Engn, Amity Sch Engn & Technol, Gurgaon 122413, Haryana, India
来源：
ASIAN JOURNAL OF WATER ENVIRONMENT AND POLLUTION | 2019年 / 16卷 / 03期
关键词：
HCl; EDTA; elution curves; dispersion coefficient; retardation factor; TREATMENT-PLANT SLUDGE; CONTAMINATED SOILS; EDTA; LEAD; ZN; CD; CU;
D O I：
10.3233/AJW190036
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
In the present study, column leaching tests were conducted with two leaching solutions, i.e., distilled water and 0.1N HCl + 0.1N EDTA to know their removal efficiencies of heavy metal ions of Cu, Zn, Ni, Cd, Pb, Fe and Cr present in the industrial sludge. It was observed that distilled water was able to remove only a few metal ions Cu, Zn. and Ni in lesser quantities. Using 0.1N HCl + 0.1N EDTA, all the heavy metals were leached out with removal efficiencies in the range of 71-98%. Using the results of column leaching tests, the migration rates of different metal ions were determined which can be used to design the soil washing programme at the site to treat the similar sludge.
引用
收藏
页码：83 / 89
页数：7
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