scholarly journals Effect of ferrous sulfate dosage and soil particle size on leachability and species distribution of chromium in hexavalent chromium‐contaminated soil stabilized by ferrous sulfate

2018 ◽  
Vol 38 (2) ◽  
pp. 500-507 ◽  
Author(s):  
Ting‐Ting Zhang ◽  
Qiang Xue ◽  
Jiang‐Shan Li ◽  
Ming‐Li Wei ◽  
Ping Wang ◽  
...  
Keyword(s):  
Particle Size ◽  
Hexavalent Chromium ◽  
Species Distribution ◽  
Contaminated Soil ◽  
Ferrous Sulfate ◽  
Soil Particle ◽  
Soil Particle Size

Contamination of a calcareous soil by battery industry wastes. I. Characterization

2001 ◽  
Vol 28 (3) ◽  
pp. 341-348 ◽  
Author(s):  
S A Wasay ◽  
W J Parker ◽  
P J Van Geel
Keyword(s):  
Heavy Metals ◽  
Particle Size ◽  
Organic Matter ◽  
Contaminated Soil ◽  
Buffering Capacity ◽  
Water Soluble ◽  
Soil Particle ◽  
Soil Particle Size ◽  
Native Soil ◽  
Battery Industry

A study of soil contamination due to the disposal of waste from a battery industry was conducted. The soil particle size, organic matter content, and buffering capacity were characterized. The heavy metal content of the soil was characterized with soil depth, soil particle size, and with respect to the fraction of the soil by which it was retained. Lead was found to be the dominant contaminant with all other metals present at considerably lower concentrations. Most of the lead was retained in the fraction of the soil that had a particle size less than 2 mm. This fraction represented 40.8% of the soil and contained 24 600 mg Pb/kg of soil. A particle size analysis indicated that 45.3% of soil particles were found to be greater than 4.75 mm. The pH of the contaminated soil in water was found to be 7.6 and was similar to the background soil. The similarity in pH was attributed to the high calcium content of the native soil. The lead content in the native soil that was collected 100 m away from the contaminated site was found to be 1967 mg/kg in the soil with particle sizes less than 2 mm (contaminated soil). The difference in pH between KCl solution (pH 7.0) and in water was found to be –0.6 indicating that the pH value was above the point of zero salt effect. An evaluation of the buffering capacity revealed that 297 mL of 0.5 M HNO3 per kg of soil was required to substantially modify the soil pH. The heavy metals in the soil were sequentially extracted to quantify the water soluble, exchangeable, carbonate, oxides, organic matter, and residual fractions. The Pb concentrations were mainly found in the carbonate and oxide fractions of the soil.Key words: heavy metals, soil pollution, characterization, retention form.

Comparing multifractal characteristics of soil particle size distributions calculated by Mie and Fraunhofer models from laser diffraction measurements

2021 ◽  
Vol 94 ◽  
pp. 36-48
Author(s):  
María Liliana Darder ◽  
Antonio Paz-González ◽  
Aitor García-Tomillo ◽  
Marcos Lado ◽  
Marcelo German Wilson
Keyword(s):  
Particle Size ◽  
Laser Diffraction ◽  
Soil Particle ◽  
Size Distributions ◽  
Particle Size Distributions ◽  
Soil Particle Size
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