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Su Y, Zhao X, Sun Y, Dong Y, Wang W, Li H, Hu F, Wang Q. Porous durian shell biochar modified by KMnO 4 (Mn-DSB) as a highly selective adsorbent for Be(II). Environ Sci Pollut Res Int 2024:10.1007/s11356-024-33003-8. [PMID: 38532218 DOI: 10.1007/s11356-024-33003-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2023] [Accepted: 03/16/2024] [Indexed: 03/28/2024]
Abstract
The mining of uranium-beryllium ores has resulted in substantial beryllium (Be) contamination. In this study, agricultural waste durian shells were utilized as raw materials to prepare biochar, which was further modified to enhance its adsorption capacity (Mn-DSB). The results effectively demonstrated Mn loading onto the DSB surface. Batch experiments were conducted to identify the optimal adsorption conditions of Mn-DSB for beryllium. At a temperature of 35 °C and pH 6, beryllium's maximum adsorption capacity (Qe) was 42.08 mg·g-1. The materials' internal structure was analyzed before and after adsorption via multiple techniques. Mn-DSB manifested potent selectivity towards beryllium in multicomponent mixed solutions, binary systems, and uranium-beryllium wastewater, as the beryllium removal rate exceeded 90%. The study investigated the recyclability of Mn-DSB and found that after five reuse cycles, the adsorption and desorption efficiencies were 90% and 85%, respectively. The strong ligand complexation (N-H, CO32-, -OH) and ion exchange mechanisms (with Mn7+ ions) of Mn-DSB explained its high adsorption capacity. Therefore, this study demonstrates the potential of Mn-DSB for treating uranium-beryllium tailing wastewater.
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Affiliation(s)
- Yucheng Su
- School of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, Hunan, China
| | - Xu Zhao
- School of Nuclear Science and Technology, University of South China, Hengyang, 421001, Hunan, China
| | - Yige Sun
- College of Chinese Language and Literature, Luoyang Normal University, Luoyang, 471934, Henan, China
| | - Yuexiang Dong
- School of Clinical Medicine, Hebei University, Baoding, 071002, Hebei, China
| | - Weiliang Wang
- School of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, Hunan, China
| | - Haoshuai Li
- School of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, Hunan, China
| | - Fang Hu
- School of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, Hunan, China
| | - Qingliang Wang
- School of Resource Environment and Safety Engineering, University of South China, Hengyang, 421001, Hunan, China.
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Ambade B, Singh SK, Choudhary A, Kumar P. Introduction to the special issue "Environment and Climate: Role of Humans and Technologies". Environ Sci Pollut Res Int 2023; 30:125238-125240. [PMID: 38082043 DOI: 10.1007/s11356-023-31294-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2023]
Affiliation(s)
- Balram Ambade
- Department of Chemistry, National Institute of Technology, Jamshedpur, 831014, India.
| | - Sudhir Kumar Singh
- K. Banerjee Centre of Atmospheric and Ocean Studies, IIDS, Nehru Science Centre, University of Allahabad, Prayagraj, 211002, India
| | - Arti Choudhary
- Centre for Environment, Climate Change and Public Health, Utkal University, Bhubaneswar, India
| | - Pradeep Kumar
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi, India
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