A review of treatment technologies for acid mine drainage and sustainability assessment

Yang, Yu; Li, Bo; Li, Tao; Liu, Pu; Zhang, Beibei; Che, Lulu

doi:10.1016/j.jwpe.2023.104213

Cited by 12 publications

(3 citation statements)

References 229 publications

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“…Preventing the formation of AMD is crucial for safeguarding the environment from future risks. This proactive approach offers a long-term, cost-effective solution compared to traditional remediation methods (Yang et al, 2023).…”

Section: Literature Reviewmentioning

confidence: 99%

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Evaluating the Environmental Sustainability of Silica Passivation for Acid Mine Drainage Treatment in Moatize's Coal Industry

Ferro,

Wu,

Dzedzemoon

2024

ejtas

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Acid mine drainage (AMD) is a significant environmental concern associated with coal mining. This study investigates the environmental impact of silica passivation as a method for AMD prevention. Life cycle assessment (LCA) identified a low impact on soil acidity but a substantial concern regarding climate change due to silica transportation, processing, and energy use. Scaling the findings to a large-scale mine highlights the potential for significant environmental damage from acid rain, greenhouse gas emissions, and ecotoxicity. The paper proposes strategies to improve the environmental sustainability of silica passivation, including sourcing local or recycled silica, utilizing renewable energy, developing bio-based processing chemicals, and implementing long-term monitoring. By focusing on cleaner materials, processes, and energy sources, silica passivation can become a more sustainable solution for preventing AMD. The evaluation method can be applied to other passivation alternatives to compare and identify the most environmentally friendly approach for mine operations.

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Section: Literature Reviewmentioning

confidence: 99%

“…This technique involves creating a chemically inert and protective surface coating over the sulfide surface. This coating limits the access of oxygen (O2) and ferric ion (Fe 3+ ), effectively inhibiting sulfide oxidation for an extended period (Yang et al, 2023). Silica deposition is a promising method for surface passivation.…”

Section: Literature Reviewmentioning

confidence: 99%

Evaluating the Environmental Sustainability of Silica Passivation for Acid Mine Drainage Treatment in Moatize's Coal Industry

Ferro,

Wu,

Dzedzemoon

2024

ejtas

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“…Major mining countries, such as China, the United States, Canada, and Spain face challenges due to AMD. Approximately 20,000 to 50,000 mines worldwide generate AMD, and nearly 19,300 km 2 of fresh water and 720 km 2 of lakes and reservoirs are polluted by AMD [6]. Extreme leachates were generated in the abandoned Tharsis mine in Spain, reaching even negative pH and concentrations of up to 194 g/L of Fe [7].…”

Section: Introductionmentioning

confidence: 99%

Effects of Different Nitrogen Sources on the Formation of Biogenic Jarosite

Huang,

Hu,

et al. 2023

Sustainability

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The effects of nitrogen sources on the biosynthesis of jarosite were investigated by analyzing the changes in pH, Fe2+, total Fe (TFe), and jarosite production in a 9K culture medium containing different nitrogen sources. Three nitrogen sources, namely (NH4)2SO4, carbamide (CO(NH2)2), and NH4NO3, were used in this study. The solution’s pH and Fe2+ concentrations were set to 2.5 and 160 mmol/L, respectively. The results demonstrated that the three different nitrogen sources could be used by Acidithiobacillus ferrooxidans (A. ferrooxidans) LX5, but the degree of utilization differed. The addition of (NH4)2SO4 facilitated the growth of A. ferrooxidans LX5 compared with the other two nitrogen sources, while the bacterial activity in the CO(NH2)2 set was minimum. The pH of the solution had an inverse correlation with bacterial activity. The mineralization rate using (NH4)2SO4 as the nitrogen source was 42.48%, which was slightly higher than the rates obtained with CO(NH2)2 and NH4NO3 (31.67% and 35.35%, respectively). The resulting minerals showed a different appearance and chemical composition. However, the XRD spectra showed similar chemical structure. The jarosites were identified as a mixture of jarosite, ammonioiarosite, and carphosiderite.

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Removal of Metal(Loids) from Acid Mine Drainage Using Manganese Oxide Wastes from a Mining-Metallurgical Process

Piñon-Flores,

Gutiérrez-Ruiz,

González-Chávez

et al. 2024

Mine Water Environ

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This study focused on treating acid mine drainage (AMD) from a Zn-sulfide mine with a composition that includes Al = 445 mg/L, Fe = 263 mg/L, Mn = 364 mg/L, Cd = 2.8 mg/L, and Zn = 4,830 mg/L. After treatment with regional alkaline minerals, the pH increased from 3.0 to 6.3 and metal concentrations decreased mainly by precipitation, falling below Mexico’s permissible limits (MPL) for river discharges, except for Cd2+ and Zn2+, which exceeded their MPLs with concentrations of 0.4 and 1,110 mg/L, respectively. We tested the use of waste materials from a Mn mine containing Mn carbonates (R3) and Mn oxides (R6) for removal of these contaminants. Several Mn oxides have been reported as promising adsorbents and indeed the R6 waste was more efficient than the R3. At a ratio of 0.75 g/L of R6, with 30 h of contact or a ratio of 0.2 with 60 h of contact, Cd2+ and Zn2+ concentrations were decreased to below their MPLs. The evaluation of removal mechanisms was hindered by the complexity of the waste’s composition. However, contact with the AMD increased the zeta potential from negative to positive values, indicating a cation sorption process. Mn wastes can be used without prior alkaline mineral treatment, but their technical and economic viability is less. The results suggest that this process is suitable for treating AMD at abandoned mines sites. Additionally, the Mn wastes can potentially be sold as a sorbent material for other processes, offering a recycling option.

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A review of treatment technologies for acid mine drainage and sustainability assessment

Cited by 12 publications

References 229 publications

Evaluating the Environmental Sustainability of Silica Passivation for Acid Mine Drainage Treatment in Moatize's Coal Industry

Evaluating the Environmental Sustainability of Silica Passivation for Acid Mine Drainage Treatment in Moatize's Coal Industry

Effects of Different Nitrogen Sources on the Formation of Biogenic Jarosite

Removal of Metal(Loids) from Acid Mine Drainage Using Manganese Oxide Wastes from a Mining-Metallurgical Process

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