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- Title
Arsenic PollutionMechanism and Associated Remediation Strategy in AcidMine Drainage Environments.
- Authors
GAO Kun; FENG Qiaomei; ZHOU Wenjing; ZHANG Bowei; SUO Hongri; LIU Chongxuan
- Abstract
Arsenic (As) is a toxic and carcinogenic metalloid that is commonly found in acid mine drainage (AMD) environments. In AMD systems, the primary source of As is the oxidative dissolution of sulfide minerals. The geochemical behavior of As is consisted of redox reactions, adsorption, co-precipitation, desorption and dissolution, et al. The remediation strategies for As pollution are mainly divided into two categories, namely source control and end treatment. Source control is to inhibit sulfide minerals dissolution by isolation, passivation or sterilization, and end treatment is to remove the As in solution through adsorption, flocculation, membrane or biological method. In this review, the source and geochemistry of As were reviewed, and the mechanism of As pollution was analyzed. In addition, the remediation strategies for As contamination were summarized and compared, and the future research direction in this field was prospected to support the assessment and remediation for As pollution in AMD environments.
- Subjects
ACID mine drainage; ARSENIC; POLLUTION remediation; GEOCHEMISTRY; DRAINAGE; SULFIDE minerals; FLOCCULATION; GEOCHEMICAL modeling
- Publication
Environmental Science & Technology (10036504), 2022, Vol 45, Issue 8, p107
- ISSN
1003-6504
- Publication type
Article
- DOI
10.19672/j.cnki.1003-6504.0719.22.338