Effects of Simulated Reclaimed Water on Soil Particle Sizes and Cd Adsorption and Migration in Soils at Smelting Sites

This work studied the vertical migration characteristics of Cd in soil profiles from a zinc smelting site under the influence of simulated reclaimed water containing NaCl and Na 2 SO 4 . The isothermal adsorption curves of Cd in the soils of miscellaneous fill and weathered slate well fitted the Fre...

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Veröffentlicht in:	Bulletin of environmental contamination and toxicology 2023-09, Vol.111 (3), p.36-36, Article 36
Hauptverfasser:	Jiang, Zhichao, Guo, Zhaohui, Peng, Chi, Anaman, Richmond, Gao, Zilun, Xiao, Xiyuan
Format:	Artikel
Sprache:	eng
Schlagworte:	Accelerated erosion Adsorption Aquatic Pollution Earth and Environmental Science Ecotoxicology Environment Environmental Chemistry Environmental Health Groundwater Ions Leachates Leaching Metallurgy Pollution Reclaimed water Reclamation Salts Smelting Sodium chloride Sodium sulfate Soil profiles Soil properties Soil Science & Conservation Soil water Soils Subsoils Vertical migrations Waste Water Technology Water Management Water Pollution Control
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Zusammenfassung:	This work studied the vertical migration characteristics of Cd in soil profiles from a zinc smelting site under the influence of simulated reclaimed water containing NaCl and Na 2 SO 4 . The isothermal adsorption curves of Cd in the soils of miscellaneous fill and weathered slate well fitted the Freundlich and Langmuir models, with R 2 ranging from 0.991 to 0.998. The maximum adsorption capacity of Cd in the soils decreased significantly under the salt ion treatments with NaCl and Na 2 SO 4 . After leaching, the Cd concentrations in the leachates and Cd contents in the subsoil layers of 10–60 cm followed the order NaCl treatment > Na 2 SO 4 treatment > CK ( p 0.02 mm) decreased, while that of fine particles (
ISSN:	0007-4861 1432-0800
DOI:	10.1007/s00128-023-03800-x