Acid and Metalliferous Drainage–A Global Environmental Issue

Qian, Gujie; Li, Yubiao

doi:10.32474/jomme.2019.01.000101

Cited by 5 publications

(4 citation statements)

References 33 publications

(44 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Both passive biotic and abiotic AMD treatments require relatively little resource input, tend to be more useful for AMD flows of less than 2 to 5 ML/d with low acidity, e.g., <800 mg/L as CaCO 3 , and which require little metal and sulphate removal [54,58,59]. However, in comparison to active treatments, passive treatments need larger areas of land and additional time to neutralise AMD and precipitate the contaminants.…”

Section: Amd Preventionmentioning

confidence: 99%

Recent Progress on Acid Mine Drainage Technological Trends in South Africa: Prevention, Treatment, and Resource Recovery

Baloyi,

Ramdhani,

Mbhele

et al. 2023

Water

View full text Add to dashboard Cite

South Africa is the home of major global mining operations, and the acid mine drainage (AMD) contribution has been attributed to abandoned mine sites and huge pyrite-bearing tailings from coal and gold mines. Determining the true economic impact and environmental liability of AMD remains difficult. Researchers have been looking into several treatment technologies over the years as a way to reduce its possible environmental impact. Different methods for active and passive remediation have been developed to treat AMD. The aim of this review was to describe the AMD-impacted environments and critically discuss the properties of AMD and current prediction and preventative methods and technologies available to treat AMD. Furthermore, this study critically analysed case studies in South Africa, gaps in AMD research, and the limitations and prospects offered by AMD. The study outlined future technological interventions aimed at a pattern shift in decreasing sludge volumes and operational costs while effectively improving the treatment of AMD. The various treatment technologies have beneficial results, but they also have related technical problems. To reduce the formation of AMD, it is recommended that more preventive methods be investigated. Moreover, there is a current need for integrated AMD treatment technologies that result in a well-rounded overall approach towards sustainability in AMD treatment. As a result, a sustainable AMD treatment strategy has been made possible due to water reuse and recovery valuable resources such sulphuric acid, rare earth elements, and metals. The cost of AMD treatment can be decreased with the use of recovered water and resources, which is essential for developing a sustainable AMD treatment process. More study is required in the future to improve the effectiveness of the various strategies used, with a focus on reducing the formation of secondary pollutants and recovery of valuable resources.

show abstract

Section: Amd Preventionmentioning

confidence: 99%

Recent Progress on Acid Mine Drainage Technological Trends in South Africa: Prevention, Treatment, and Resource Recovery

Baloyi,

Ramdhani,

Mbhele

et al. 2023

Water

View full text Add to dashboard Cite

show abstract

“…Acid drainage is considered by the United Nations one of the most challenging environmental problems that society will face in the coming years (e.g. Tuffnell, 2017;Qian and Li, 2019). Acid drainage is the result of bio-chemical weathering of certain minerals contained in sulfide-bearing rocks under water and oxygen-rich environments (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Although the study of AMD has been extensively addressed in the literature (e.g. Plaza et al, 2017;Qian and Li, 2019;Rezaie and Anderson, 2020;Giddings et al, 2020;Galván et al, 2021), research dealing with the ARD phenomenon and the associated impacts is much more limited (e.g. Kwong et al, 2009;Todd et al, 2012;Ilyashuk et al, 2014Ilyashuk et al, , 2018Gault et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Natural acid rock drainage in alpine catchments: A side effect of climate warming

Zarroca

Pau

Linares

et al. 2021

Science of The Total Environment

View full text Add to dashboard Cite

“…Metalliferous mining has left a severe environmental legacy of numerous abandoned mining districts containing metalrich wastes that remain as long-term sources of acidic and metal-polluted water known as (Nieto et al 2007;Runkel et al 2012;Yang et al 2020). Indeed, acid mine drainage (AMD) is the main environmental pollution problem associated with coal and metal-bearing mineral mining and it is of international concern (Acharya and Kharel 2020; Qian and Li 2019). Thus, it is imperative to develop cost-effective, efficient, and reliable monitoring tools that can be used by environmental agencies and companies in charge of mining concessions.…”

Section: Introductionmentioning

confidence: 99%

Unmanned Aerial System-Based Multispectral Water Quality Monitoring in the Iberian Pyrite Belt (SW Spain)

2021

View full text Add to dashboard Cite

Few studies have assessed mining-associated water pollution using spectral characteristics. We used high-resolution multispectral data acquired by unmanned aerial drones combined with in situ chemical data to assess water quality parameters in 12 relatively small water bodies located in the Tharsis complex, an abandoned mining area in the Iberian pyrite belt (SW Spain). The spectral bands of Micasense RedEdge-MX Dual and spectral band combinations were used jointly with physicochemical data to estimate water quality parameters and develop reliable empirical models using regression analysis. Physicochemical parameters including pH, ORP, EC, Al, Cu, Fe, Mn, S, Si, and Zn were estimated with high accuracy levels (0.81 < R2 < 0.99, 4 < RMSE% < 75, 0.01 < MAPE < 0.97). In contrast, the observed and modelled values for Ba, Ca, and Mg did not agree well (0.42 < R2 < 0.70). The best-fitted models were used to generate spatial distribution maps, providing information on water quality patterns. This study demonstrated that using empirical models to generate spatial distribution maps can be an effective and easy way to monitor acid mine drainage.

show abstract

Acid and Metalliferous Drainage–A Global Environmental Issue

Cited by 5 publications

References 33 publications

Recent Progress on Acid Mine Drainage Technological Trends in South Africa: Prevention, Treatment, and Resource Recovery

Recent Progress on Acid Mine Drainage Technological Trends in South Africa: Prevention, Treatment, and Resource Recovery

Natural acid rock drainage in alpine catchments: A side effect of climate warming

Unmanned Aerial System-Based Multispectral Water Quality Monitoring in the Iberian Pyrite Belt (SW Spain)

Contact Info

Product

Resources

About