Knowledge Management System Of Guangzhou Institute of Geochemistry，CAS
| Sun, Xiaoxu1,2; Huang, Duanyi1,2,3; Huang, Yuqing1,2; Haggblom, Max4; Soleimani, Mohsen5; Li, Jiayi1,2; Chen, Zheng6; Chen, Zhenyu1,2,7; Gao, Pin1,2; Li, Baoqin1,2; Sun, Weimin1,2,8 | |
| Microbial-mediated oxidative dissolution of orpiment and realgar in circumneutral aquatic environments | |
| Source Publication | WATER RESEARCH
 |
| ISSN | 0043-1354 |
| 2024-03-01 | |
| Volume | 251Pages:9 |
| DOI | 10.1016/j.watres.2024.121163 |
| Language | 英语 |
| WOS Research Area | Engineering ; Environmental Sciences & Ecology ; Water Resources |
| Abstract | Arsenic (As) is a toxic metalloid that causes severe environmental contamination worldwide. Upon exposure to aqueous phases, the As-bearing minerals, such as orpiment (As2S3) and realgar (As4S4), undergo oxidative dissolution, in which biotic and abiotic activities both contributed significant roles. Consequently, the dissolved As and S are rapidly discharged through water transportation to broader regions and contaminate surrounding areas, especially in aquatic environments. Despite both orpiment and realgar are frequently encountered in carbonate-hosted neutral environments, the microbial-mediated oxidative dissolution of these minerals, however, have been primarily investigated under acidic conditions. Therefore, the current study aimed to elucidate microbial-mediated oxidative dissolution under neutral aquatic conditions. The current study demonstrated that the dissolution of orpiment and realgar is synergistically regulated by abiotic (i.e., specific surface area (SSA) of the mineral) and biotic (i.e., microbial oxidation) factors. The initial dissolution of As(III) and S2- from minerals is abiotically impacted by SSA, while the microbial oxidation of As(III) and S2- accelerated the overall dissolution rates of orpiment and realgar. In As-contaminated environments, members of Thiobacillus and Rhizobium were identified as the major populations that mediated oxidative dissolution of orpiment and realgar by DNAstable isotope probing. This study provides novel insights regarding the microbial-mediated oxidative dissolution process of orpiment and realgar under neutral conditions. |
| Keyword | Mineral dissolution Orpiment Realgar Stable isotope probing |
| WOS ID | WOS:001169813800001 |
| Indexed By | SCI |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.gig.ac.cn/handle/344008/77407 |
| Collection | 中国科学院广州地球化学研究所 |
| Corresponding Author | Sun, Weimin |
| Affiliation | 1.Natl Reg Joint Engn Res Ctr Soil Pollut Control &, Inst Ecoenvironm & Soil Sci, Guangdong Acad Sci, Guangdong Key Lab Integrated Agroenvironm Pollut C, Guangzhou, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Geochem, Guangdong Hong Kong Macao Joint Lab Environm Pollu, Hong Kong 510640, Guangdong, Peoples R China 3.Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Peoples R China 4.Rutgers State Univ, Dept Biochem & Microbiol, New Brunswick, NJ 08901 USA 5.Isfahan Univ Technol, Dept Nat Resources, Esahan 83111, Iran 6.Xian Jiaotong Liverpool Univ, Dept Hlth & Environm Sci, Suzhou 215123, Peoples R China 7.Henan Normal Univ, Sch Environm, Xinxiang 453007, Peoples R China 8.808 Tianyuan Rd, Guangzhou, Guangdong, Peoples R China |
| Recommended Citation GB/T 7714 | Sun, Xiaoxu,Huang, Duanyi,Huang, Yuqing,et al. Microbial-mediated oxidative dissolution of orpiment and realgar in circumneutral aquatic environments[J]. WATER RESEARCH,2024,251:9. |
| APA | Sun, Xiaoxu.,Huang, Duanyi.,Huang, Yuqing.,Haggblom, Max.,Soleimani, Mohsen.,...&Sun, Weimin.(2024).Microbial-mediated oxidative dissolution of orpiment and realgar in circumneutral aquatic environments.WATER RESEARCH,251,9. |
| MLA | Sun, Xiaoxu,et al."Microbial-mediated oxidative dissolution of orpiment and realgar in circumneutral aquatic environments".WATER RESEARCH 251(2024):9. |
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