scholarly journals A Study on Removal of Heavy Metals (Cu, Zn, and Pb) from Contaminated Soil by Soil Washing

2013 ◽  
Vol 46 (6) ◽  
pp. 509-520 ◽  
Author(s):  
Myoung-Jin Kim
Keyword(s):  
Heavy Metals ◽  
Contaminated Soil ◽  
Soil Washing ◽  
Removal Of Heavy Metals

scholarly journals Effect of Soil Washing Solutions on Simultaneous Removal of Heavy Metals and Arsenic from Contaminated Soil

2020 ◽  
Vol 17 (9) ◽  
pp. 3133 ◽  
Author(s):  
Kanghee Cho ◽  
Eunji Myung ◽  
Hyunsoo Kim ◽  
Cheonyoung Park ◽  
Nagchoul Choi ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sulfuric Acid ◽  
Phosphoric Acid ◽  
Contaminated Soil ◽  
Contaminated Soils ◽  
Soil Washing ◽  
Metal Extraction ◽  
Simultaneous Removal ◽  
Removal Of Heavy Metals ◽  
Removal Efficiencies

In this study, we investigated the feasibility of using a solution of sulfuric acid and phosphoric acid as an extraction method for soil-washing to remove Cu, Pb, Zn, and As from contaminated soil. We treated various soil particles, including seven fraction sizes, using sulfuric acid. In addition, to improve Cu, Pb, Zn, and As removal efficiencies, washing agents were compared through batch experiments. The results showed that each agent behaved differently when reacting with heavy metals (Cu, Pb, and Zn) and As. Sulfuric acid was more effective in extracting heavy metals than in extracting As. However, phosphoric acid was not effective in extracting heavy metals. Compared with each inorganic acid, As removal from soil by washing agents increased in the order of sulfuric acid (35.81%) < phosphoric acid (62.96%). Therefore, an enhanced mixture solution using sulfuric acid and phosphoric acid to simultaneously remove heavy metals and As from contaminated soils was investigated. Sulfuric acid at 0.6 M was adopted to combine with 0.6 M phosphoric acid to obtain the mixture solution (1:1) that was used to determine the effect for the simultaneous removal of both heavy metals and As from the contaminated soil. The removal efficiencies of As, Cu, Pb, and Zn were 70.5%, 79.6%, 80.1%, and 71.2%, respectively. The combination of sulfuric acid with phosphoric acid increased the overall As and heavy metal extraction efficiencies from the contaminated soil samples. With the combined effect of dissolving oxides and ion exchange under combined washings, the removal efficiencies of heavy metals and As were higher than those of single washings.

Remediation of Heavy Metals Contaminated Soil and Soil Washing

2015 ◽  
Vol 5 (3) ◽  
pp. 1-6 ◽  
Author(s):  
Zainab Siddiqui ◽  
◽  
S.M Ali Jawaid ◽  
Sandeep Vishen ◽  
Shreya Verma ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Contaminated Soil ◽  
Soil Washing

On the use of biosurfactants for the removal of heavy metals from oil-contaminated soil

1999 ◽  
Vol 18 (1) ◽  
pp. 50-54 ◽  
Author(s):  
Catherine N. Mulligan ◽  
Raymond N. Yong ◽  
Bernard F. Gibbs
Keyword(s):  
Heavy Metals ◽  
Contaminated Soil ◽  
Removal Of Heavy Metals

Removal of Heavy Metals from Contaminated Soil and Sediments Using the Biosurfactant Surfactin

1999 ◽  
Vol 8 (2) ◽  
pp. 231-254 ◽  
Author(s):  
Catherine N. Mulligan ◽  
Raymond N. Yong ◽  
Bernard F. Gibbs
Keyword(s):  
Heavy Metals ◽  
Contaminated Soil ◽  
Removal Of Heavy Metals

Green Process: Removal of Heavy Metals from Contaminated Soil

2021 ◽  
Vol 2 (2) ◽  
pp. 2021-0173-2021-0173
Author(s):  
Omar Chaalal
Keyword(s):  
Heavy Metals ◽  
Contaminated Soil ◽  
Green Process ◽  
Removal Of Heavy Metals

Effect of Soil Washing and Liming on Bioavailability of Heavy Metals in Acid Contaminated Soil

2013 ◽  
Vol 77 (2) ◽  
pp. 432-441 ◽  
Author(s):  
Xiaofang Guo ◽  
Zebin Wei ◽  
C. J. Penn ◽  
Tianfen Xu ◽  
Qitang Wu
Keyword(s):  
Heavy Metals ◽  
Contaminated Soil ◽  
Soil Washing
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