Risk assessment of heavy metals in soils contaminated by smelting waste for the perspective of chemical fraction and spatial distribution

Xiaoxi Zeng; Qiming Chen; Qin Tan; Hong Xu; Wen Li; Sheng Yang; Jianhui Wang; Jiali Ren; Feijun Luo; Jianxing Tang; Ling Wu; Yuanke Zhang; Dongmin Liu

doi:10.3846/jeelm.2021.14190

Journal of Environmental Engineering and Landscape Management (May 2021)

Risk assessment of heavy metals in soils contaminated by smelting waste for the perspective of chemical fraction and spatial distribution

Xiaoxi Zeng,
Qiming Chen,
Qin Tan,
Hong Xu,
Wen Li,
Sheng Yang,
Jianhui Wang,
Jiali Ren,
Feijun Luo,
Jianxing Tang,
Ling Wu,
Yuanke Zhang,
Dongmin Liu

Affiliations

Xiaoxi Zeng: Key Laboratory of Biological Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, 412007 Zhuzhou, P.R. China
Qiming Chen: Key Laboratory of Biological Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, 412007 Zhuzhou, P.R. China
Qin Tan: Key Laboratory of Biological Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, 412007 Zhuzhou, P.R. China
Hong Xu: Key Laboratory of Biological Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, 412007 Zhuzhou, P.R. China
Wen Li: Key Laboratory of Biological Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, 412007 Zhuzhou, P.R. China; Hunan Province Key Laboratory of Edible forestry Resources Safety and Processing Utilization, Hunan Key Laboratory of Processed Food for Special Medical Purpose, National Engineering Laboratory for Deep Process of Rice and Byproducts, College of Food Science and Engineering, Central South University of Forestry and Technology, 410004 Changsha, China
Sheng Yang: School of Energy Science and Engineering, Central South University, 410083 Changsha, P.R. China
Jianhui Wang: School of Chemistry and Food Engineering, Changsha University of Science and Technology, 410114 Changsha, P.R. China
Jiali Ren: Hunan Province Key Laboratory of Edible forestry Resources Safety and Processing Utilization, Hunan Key Laboratory of Processed Food for Special Medical Purpose, National Engineering Laboratory for Deep Process of Rice and Byproducts, College of Food Science and Engineering, Central South University of Forestry and Technology, 410004 Changsha, China
Feijun Luo: Hunan Province Key Laboratory of Edible forestry Resources Safety and Processing Utilization, Hunan Key Laboratory of Processed Food for Special Medical Purpose, National Engineering Laboratory for Deep Process of Rice and Byproducts, College of Food Science and Engineering, Central South University of Forestry and Technology, 410004 Changsha, China
Jianxing Tang: Key Laboratory of Biological Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, 412007 Zhuzhou, P.R. China
Ling Wu: Key Laboratory of Biological Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, 412007 Zhuzhou, P.R. China
Yuanke Zhang: Key Laboratory of Biological Nanomaterials and Devices, College of Life Sciences and Chemistry, Hunan University of Technology, 412007 Zhuzhou, P.R. China
Dongmin Liu: School of Chemistry and Food Engineering, Changsha University of Science and Technology, 410114 Changsha, P.R. China

DOI: https://doi.org/10.3846/jeelm.2021.14190
Journal volume & issue: Vol. 29, no. 2

Abstract

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The heavy metals contamination in soil has attracted increasing attention. In this study, the main objective was to determine three heavy metals (Cd, Pb, and Cr) of soils contaminated by smelting waste, and to evaluate pollution risk. The Pb (15.48 mg/kg) and Cd (311.39 mg/kg) mean concentrations exceeded the national standard, while Cr (48.60 mg/kg) concentration did not exceed. The Heavy metal fractions analysis showed that three heavy metals were dominated by FeMn oxides fraction (Fe-Mn). The correlation and cluster analysis indicated that there was significant correlation between Cd and Pb (0.55< r < 0.96), while Cr was not correlation to Cd and Pb. The environmental pollution of heavy metals was assessed by the ratio of secondary phase and primary phase (RSP). The result showed that RSP values of Cd, Pb, and Cr range from 13.05–54.28, 16.11–4.97 and 1.61–52.33, which indicated soil was serious contaminated by them. These results showed that smelting waste discharge led to this smelter soil being seriously contaminated by multiple heavy metals which have a tendency to transport and accumulate into deep soil due to their high fractional transformation.

Published in Journal of Environmental Engineering and Landscape Management

ISSN: 1648-6897 (Print); 1822-4199 (Online)
Publisher: Vilnius Gediminas Technical University
Country of publisher: Lithuania
LCC subjects: Technology: Engineering (General). Civil engineering (General): Environmental engineering
Website: https://journals.vilniustech.lt/index.php/JEELM

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