Aging Process of Cadmium, Copper, and Lead under Different Temperatures and Water Contents in Two Typical Soils of China
Aging process of exogenous heavy metals in soil is significant for reducing their environmental risk due to the redistribution of species of soil heavy metals. A red soil (ultisol) and a brown soil (alfisol) were selected to investigate the aging process of cadmium (Cd), copper (Cu), and lead (Pb) u...
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| Format: | Article |
| Language: | English |
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Wiley
2020-01-01
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| Series: | Journal of Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2020/2583819 |
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| author | Guannan Liu Zhanqiu Yu Xinhui Liu Wei Xue Liming Dong Yongbing Liu |
| author_facet | Guannan Liu Zhanqiu Yu Xinhui Liu Wei Xue Liming Dong Yongbing Liu |
| author_sort | Guannan Liu |
| collection | DOAJ |
| description | Aging process of exogenous heavy metals in soil is significant for reducing their environmental risk due to the redistribution of species of soil heavy metals. A red soil (ultisol) and a brown soil (alfisol) were selected to investigate the aging process of cadmium (Cd), copper (Cu), and lead (Pb) under different regimes of temperature and water content. Most introduced heavy metals were all transformed from dissolved fraction to more stable fractions within 5 days of incubation. During incubation, most Pb existed in the fraction bound to Fe/Mn oxides, while exchangeable and carbonate-associated fraction was the dominant portion for Cd and Cu, suggesting that the transformation rate followed the order: Pb > Cu > Cd. The exchangeable and carbonate-associated fraction in red soil, which was characterized with higher pH and Fe/Al/Mn oxides and lower organic matter (OM), was significantly higher than that in brown soil, implying that soil OM was the important factor affecting the aging process of soil heavy metals in the present study. In addition, increases of temperature and soil water content can accelerate the transformation of most introduced Cd, Cu, and Pb to more stable forms in the soils. The results indicated that soil properties, environmental factors (i.e., temperature and water content), types of heavy metals, and pollution time can significantly affect the aging process of exogenous heavy metals. |
| format | Article |
| id | doaj-art-ec4abcea632f4a3aa258ee0033915c1e |
| institution | DOAJ |
| issn | 2090-9063 2090-9071 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Chemistry |
| spelling | doaj-art-ec4abcea632f4a3aa258ee0033915c1e2025-08-20T03:21:24ZengWileyJournal of Chemistry2090-90632090-90712020-01-01202010.1155/2020/25838192583819Aging Process of Cadmium, Copper, and Lead under Different Temperatures and Water Contents in Two Typical Soils of ChinaGuannan Liu0Zhanqiu Yu1Xinhui Liu2Wei Xue3Liming Dong4Yongbing Liu5MNR Key Laboratory of Metallogeny and Mineral Assessment, Institute of Mineral Resources, CAGS, Beijing 100037, ChinaKey Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, ChinaState Key Laboratory of Water Environment Simulation, School of Environment, Beijing Normal University, 100875 Beijing, ChinaAgricultural and Environmental Chemistry, University of CA, Davis, CA, USAKey Laboratory of Cleaner Production and Integrated Resource Utilization of China National Light Industry, School of Ecology and Environment, Beijing Technology and Business University, Beijing 100048, ChinaKey Laboratory of Eco-Geochemistry, Ministry of Natural Resources, National Research Center for Geoanalysis, Beijing 100037, ChinaAging process of exogenous heavy metals in soil is significant for reducing their environmental risk due to the redistribution of species of soil heavy metals. A red soil (ultisol) and a brown soil (alfisol) were selected to investigate the aging process of cadmium (Cd), copper (Cu), and lead (Pb) under different regimes of temperature and water content. Most introduced heavy metals were all transformed from dissolved fraction to more stable fractions within 5 days of incubation. During incubation, most Pb existed in the fraction bound to Fe/Mn oxides, while exchangeable and carbonate-associated fraction was the dominant portion for Cd and Cu, suggesting that the transformation rate followed the order: Pb > Cu > Cd. The exchangeable and carbonate-associated fraction in red soil, which was characterized with higher pH and Fe/Al/Mn oxides and lower organic matter (OM), was significantly higher than that in brown soil, implying that soil OM was the important factor affecting the aging process of soil heavy metals in the present study. In addition, increases of temperature and soil water content can accelerate the transformation of most introduced Cd, Cu, and Pb to more stable forms in the soils. The results indicated that soil properties, environmental factors (i.e., temperature and water content), types of heavy metals, and pollution time can significantly affect the aging process of exogenous heavy metals.http://dx.doi.org/10.1155/2020/2583819 |
| spellingShingle | Guannan Liu Zhanqiu Yu Xinhui Liu Wei Xue Liming Dong Yongbing Liu Aging Process of Cadmium, Copper, and Lead under Different Temperatures and Water Contents in Two Typical Soils of China Journal of Chemistry |
| title | Aging Process of Cadmium, Copper, and Lead under Different Temperatures and Water Contents in Two Typical Soils of China |
| title_full | Aging Process of Cadmium, Copper, and Lead under Different Temperatures and Water Contents in Two Typical Soils of China |
| title_fullStr | Aging Process of Cadmium, Copper, and Lead under Different Temperatures and Water Contents in Two Typical Soils of China |
| title_full_unstemmed | Aging Process of Cadmium, Copper, and Lead under Different Temperatures and Water Contents in Two Typical Soils of China |
| title_short | Aging Process of Cadmium, Copper, and Lead under Different Temperatures and Water Contents in Two Typical Soils of China |
| title_sort | aging process of cadmium copper and lead under different temperatures and water contents in two typical soils of china |
| url | http://dx.doi.org/10.1155/2020/2583819 |
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