Mineralogical and geochemical characteristics of barium slag and ecological risks associated with heavy metals
Barium slag (BS) is a typical chemical hazardous waste, and its ecological risks cannot be ignored. Herein, the chemical composition, mineral composition and morphological characteristics of BS were investigated. In addition, the geochemical behaviour was investigated in terms of heavy-metal-leachin...
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| Language: | English |
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Elsevier
2025-01-01
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| Series: | Arabian Journal of Chemistry |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S1878535224004763 |
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| author | Chengbing Fu Yu Zhang Juan Tian Wenxing Chen Hongyan Pan Jianxin Cao |
| author_facet | Chengbing Fu Yu Zhang Juan Tian Wenxing Chen Hongyan Pan Jianxin Cao |
| author_sort | Chengbing Fu |
| collection | DOAJ |
| description | Barium slag (BS) is a typical chemical hazardous waste, and its ecological risks cannot be ignored. Herein, the chemical composition, mineral composition and morphological characteristics of BS were investigated. In addition, the geochemical behaviour was investigated in terms of heavy-metal-leaching toxicity as well as the bioavailability, bioaccessibility and migration of these metals. The ecological risks associated with the release of heavy metals from BS driven by its geochemical behaviour were also evaluated. The BS displayed irregular particle morphologies and distinct surface structures, with heavy metal ions predominantly present in the smaller-sized BS particles. Zn, Ni, Mn and Ba exhibited a stronger potential for migration in plants than other heavy metals. This migration potential was influenced by their total amount and occurrence form as well as the pH conditions of the surrounding environment. The findings indicated that crops should not be planted around BS yards. The bioaccessible risks associated with heavy metals in BS were low. Mn, Ba, Fe and Ni primarily existed in the form of a weak-acid soluble fraction, thereby posing a high migration risk. Thus, attention should be paid to the ecological risks that may arise from Mn, Ba, Fe and Ni during storage. |
| format | Article |
| id | doaj-art-9d02bc6dc16b4befba272279c1f97ee1 |
| institution | Kabale University |
| issn | 1878-5352 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Arabian Journal of Chemistry |
| spelling | doaj-art-9d02bc6dc16b4befba272279c1f97ee12024-12-26T08:52:55ZengElsevierArabian Journal of Chemistry1878-53522025-01-01181106074Mineralogical and geochemical characteristics of barium slag and ecological risks associated with heavy metalsChengbing Fu0Yu Zhang1Juan Tian2Wenxing Chen3Hongyan Pan4Jianxin Cao5College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou 550025, China; School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China; Guizhou Key Laboratory for Green Chemical and Clean Energy Technology, Guizhou University, Guiyang, Guizhou 550025, ChinaSchool of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China; Guizhou Key Laboratory for Green Chemical and Clean Energy Technology, Guizhou University, Guiyang, Guizhou 550025, ChinaGuizhou Research Institute of Chemical Industry, Guiyang, Guizhou 550003, ChinaGuizhou Research Institute of Chemical Industry, Guiyang, Guizhou 550003, ChinaSchool of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China; Guizhou Key Laboratory for Green Chemical and Clean Energy Technology, Guizhou University, Guiyang, Guizhou 550025, ChinaCollege of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou 550025, China; School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China; Guizhou Key Laboratory for Green Chemical and Clean Energy Technology, Guizhou University, Guiyang, Guizhou 550025, China; Corresponding author at: College of Resources and Environmental Engineering, Guizhou University, Guiyang, Guizhou 550025, China.Barium slag (BS) is a typical chemical hazardous waste, and its ecological risks cannot be ignored. Herein, the chemical composition, mineral composition and morphological characteristics of BS were investigated. In addition, the geochemical behaviour was investigated in terms of heavy-metal-leaching toxicity as well as the bioavailability, bioaccessibility and migration of these metals. The ecological risks associated with the release of heavy metals from BS driven by its geochemical behaviour were also evaluated. The BS displayed irregular particle morphologies and distinct surface structures, with heavy metal ions predominantly present in the smaller-sized BS particles. Zn, Ni, Mn and Ba exhibited a stronger potential for migration in plants than other heavy metals. This migration potential was influenced by their total amount and occurrence form as well as the pH conditions of the surrounding environment. The findings indicated that crops should not be planted around BS yards. The bioaccessible risks associated with heavy metals in BS were low. Mn, Ba, Fe and Ni primarily existed in the form of a weak-acid soluble fraction, thereby posing a high migration risk. Thus, attention should be paid to the ecological risks that may arise from Mn, Ba, Fe and Ni during storage.http://www.sciencedirect.com/science/article/pii/S1878535224004763Barium slagHeavy metalsEcological riskGeochemical assessment |
| spellingShingle | Chengbing Fu Yu Zhang Juan Tian Wenxing Chen Hongyan Pan Jianxin Cao Mineralogical and geochemical characteristics of barium slag and ecological risks associated with heavy metals Arabian Journal of Chemistry Barium slag Heavy metals Ecological risk Geochemical assessment |
| title | Mineralogical and geochemical characteristics of barium slag and ecological risks associated with heavy metals |
| title_full | Mineralogical and geochemical characteristics of barium slag and ecological risks associated with heavy metals |
| title_fullStr | Mineralogical and geochemical characteristics of barium slag and ecological risks associated with heavy metals |
| title_full_unstemmed | Mineralogical and geochemical characteristics of barium slag and ecological risks associated with heavy metals |
| title_short | Mineralogical and geochemical characteristics of barium slag and ecological risks associated with heavy metals |
| title_sort | mineralogical and geochemical characteristics of barium slag and ecological risks associated with heavy metals |
| topic | Barium slag Heavy metals Ecological risk Geochemical assessment |
| url | http://www.sciencedirect.com/science/article/pii/S1878535224004763 |
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