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Selection of Natural Minerals as Remediation Agents Based on Cadmium Immobilization
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Bingbing SONG1, 2, Wujun DENG3, Jingying ZENG4, Junping BI4, Haijun HE1, 2, Lei YU1, 2, Ruirui ZHU1, 2, Jianxin ZHANG5, Huanzhe LYU5, Dilan QIN1, 2
Mining and Metallurgical Engineering | 2024, 44(4) : 241 - 246
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Mining and Metallurgical Engineering | 2024, 44(4): 241-246
• METALLURGY •
Selection of Natural Minerals as Remediation Agents Based on Cadmium Immobilization
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Bingbing SONG1, 2, Wujun DENG3, Jingying ZENG4, Junping BI4, Haijun HE1, 2, Lei YU1, 2, Ruirui ZHU1, 2, Jianxin ZHANG5, Huanzhe LYU5, Dilan QIN1, 2
Affiliations
  • 1.Hunan Province Eco-environment Monitoring Center, Changsha 410019, Hunan, China
  • 2.Key Laboratory of Heavy Metal Pollutants Monitoring for State Environmental Protection, Changsha 410019, Hunan, China
  • 3.Hunan Province International Engineering Consultant Center Co., Ltd., Changsha 410016, Hunan, China
  • 4.Changsha Environmental Protection Vocational College, Changsha 410004, Hunan, China
  • 5.Hunan Provincial Institute of Land and Resources Planning, Changsha 410007, Hunan, China
Published: 2024-08-01 doi: 10.3969/j.issn.0253-6099.2024.04.047
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Based on comparison of cadmium immobilization with 4 types of minerals originated from 14 places in Hunan Province, four kinds of natural and efficient remediation materials (including limestone from Yujiaao of Ningxiang County, low-grade manganese ore from Nanmuchong of Xiangtan County, bentonite from Mazongling of Taoyuan County, and sepiolite from Xingang of Shimen County) were selected. The kinetic rate of cadmium immobilization by these four natural minerals is in the following descending order: bentonite > limestone > sepiolite > manganese ore. The cadmium adsorption by four kinds of minerals increases as the initial cadmium mass concentration increases. With cadmium mass concentration no higher than 10.0 mg/L, the cadmium adsorption by these four minerals is in the following descending order: limestone > bentonite > manganese ore > sepiolite; with cadmium mass concentration exceeding 10.0 mg/L, the cadmium adsorption by these four minerals is in the following descending order: bentonite > limestone > manganese ore > sepiolite. The adsorption behavior follows Langmuir adsorption model, and the maximum adsorption capacities of bentonite, limestone, manganese ore and sepiolite are 29.38 mg/g, 14.51 mg/g, 9.67 mg/g and 5.27 mg/g respectively. With pH of solution within the range of 6 to 9, the removal efficiency of cadmium by four minerals is in the following descending order: limestone > bentonite > manganese ore > sepiolite. It is concluded that the cadmium immobilization with natural minerals is related to chemical composition of minerals, initial cadmium mass concentration, and pH value.

heavy metal pollution  /  adsorbent  /  contaminated soil  /  soil restoration  /  cadmium  /  natural mineral  /  remediation agent  /  adsorption performance  /  immobilization  /  mineral material
Bingbing SONG, Wujun DENG, Jingying ZENG, Junping BI, Haijun HE, Lei YU, Ruirui ZHU, Jianxin ZHANG, Huanzhe LYU, Dilan QIN. Selection of Natural Minerals as Remediation Agents Based on Cadmium Immobilization[J]. Mining and Metallurgical Engineering, 2024 , 44 (4) : 241 -246 . DOI: 10.3969/j.issn.0253-6099.2024.04.047
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doi: 10.3969/j.issn.0253-6099.2024.04.047
  • Receive Date：2024-02-21
  • Online Date：2026-03-18
  • Published：2024-08-01
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History
  • Received：2024-02-21
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Affiliations
    1.Hunan Province Eco-environment Monitoring Center, Changsha 410019, Hunan, China
    2.Key Laboratory of Heavy Metal Pollutants Monitoring for State Environmental Protection, Changsha 410019, Hunan, China
    3.Hunan Province International Engineering Consultant Center Co., Ltd., Changsha 410016, Hunan, China
    4.Changsha Environmental Protection Vocational College, Changsha 410004, Hunan, China
    5.Hunan Provincial Institute of Land and Resources Planning, Changsha 410007, Hunan, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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