Effect of Organic Acids and Soil Particle Size on Heavy Metal Removal from Bulk Soil with Washing
ENVIRONMENTAL GEOCHEMISTRY AND HEALTH（2023）
Abstract
To evaluate the effect of soil particle size on heavy metals removal by washing, two soil samples were collected around a lead–zinc mining area (SM) and lead–zinc smelter (SS). The total content of Cd, Pb and Zn in SM and SS were determined. And the effect of soil particle size on Cd removal by low molecular organic acids was studied. The results showed that Cd was the main pollutant and the total content of Cd in SS can reach to 24.8 mg Kg−1. 68.4
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Key words
Soil leaching,Heavy metals,Citric acid,Soil particle size,Bioavailability
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