Evaluation of Non-Acid-Forming material layering for the prevention of acid mine drainage of pyrite and jarosite

Abfertiawan, Muhammad Sonny; Palinggi, Yoseph; Handajani, Marisa; Pranoto, Kris; Atmaja, Ananda

doi:10.1016/j.heliyon.2020.e05590

Cited by 16 publications

(15 citation statements)

References 24 publications

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“…The materials are then compacted to prevent water infiltration and oxygen reaction with sulphidic minerals contained in OB-PAF materials [35,37]. Research in the Lati coal mine [43] as well as in the Sangatta and Bengalon coal mines [44] showed that encapsulation is the most effective method in preventing AMD. With the increasing use of coal as an energy source, the amount of coal combustion ash (CCA) produced has also increased.…”

Section: Land Clearingmentioning

confidence: 99%

Managing and Reforesting Degraded Post-Mining Landscape in Indonesia: A Review

Pratiwi¹,

Narendra²,

Siregar³

et al. 2021

Land

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Tropical forests are among the most diverse ecosystems in the world, completed by huge biodiversity. An expansion in natural resource extraction through open-pit mining activities leads to increasing land and tropical forest degradation. Proper science-based practices are needed as an effort to reclaim their function. This paper summarizes the existing practice of coal mining, covering the regulatory aspects and their reclamation obligations, the practices of coal mining from various sites with different land characteristics, and the reclamation efforts of the post-mining landscapes in Indonesia. The regulations issued accommodate the difference between mining land inside the forest area and outside the forest area, especially in the aspect of the permit authority and in evaluating the success rate of reclamation. In coal-mining practices, this paper describes starting from land clearing activities and followed by storing soil layers and overburden materials. In this step, proper handling of potentially acid-forming materials is crucial to prevent acid mine drainage. At the reclamation stage, this paper sequentially presents research results and the field applications in rearranging the overburden and soil materials, controlling acid mine drainage and erosion, and managing the drainage system, settling ponds, and pit lakes. Many efforts to reclaim post-coal-mining lands and their success rate have been reported and highlighted. Several success stories describe that post-coal-mining lands can be returned to forests that provide ecosystem services and goods. A set of science-based best management practices for post-coal-mine reforestation is needed to develop to promote the success of forest reclamation and restoration in post-coal-mining lands through the planting of high-value hardwood trees, increasing trees’ survival rates and growth, and accelerating the establishment of forest habitat through the application of proper tree planting technique. The monitoring and evaluation aspect is also crucial, as corrective action may be taken considering the different success rates for different site characteristics.

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Section: Land Clearingmentioning

confidence: 99%

Managing and Reforesting Degraded Post-Mining Landscape in Indonesia: A Review

Pratiwi¹,

Narendra²,

Siregar³

et al. 2021

Land

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“…Some research reported that AMD contains dissolved metals such as iron, aluminium, zinc, copper, and other metals (Brar et al, 2022;Shi et al, 2022;Zhang et al, 2022). Therefore, AMD entering the environment can cause pollution to water bodies and soil, and also it can have adverse effects on living organisms (Abfertiawan et al, 2020) .…”

Section: Introductionmentioning

confidence: 99%

“…In general, the dry cover method is often used to prevent the formation of AMD (Lu et al, 2013) . The principle of this technique is an oxygen barrier where rocks having the potential to produce acidity will be covered with non-acidity materials (Abfertiawan et al, 2020) . Some materials that can be used as cover are organic soil (Demers et al, 2017) , fly ash (Win et al, 2020) , green liquor dregs (Mäkitalo et al, 2014) , and others.…”

Section: Introductionmentioning

confidence: 99%

Emerging Strategies for Mitigating Acid Mine Drainage Formation and Environmental Impacts: A Comprehensive Review of Recent Advances

Wibowo,

Imron,

Kurniawan

et al. 2023

Sci. Technol. Indones

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Acid mine drainage (AMD) is a significant threat to the environment due to its high acidity and metal ion content. To effectively eliminate pollutants from AMD, various approaches are necessary. This review aims to provide a comprehensive understanding of recent advances in AMD mitigation. While treatment technologies have developed to eliminate AMD, they often produce sludge as a by-product and require expensive maintenance. As a cost-effective alternative, the recovery of AMD resources can reduce toxicity and promote reuse of heavy metals and rare earth elements. This review also analyzes the challenges and prospects of AMD mitigation implementation, including current mitigation conditions and knowledge gaps. Researchers can benefit from this review by gaining insight into research progress in this area, identifying strengths and weaknesses of current AMD mitigation applications, and exploring future research directions.

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“…The formation of acid water drainage aggravates the water quality from coal mining pits [4], which is the result of a reaction among sulfide minerals, oxygen, and water [5] [6], especially from exposed PAF materials on the pit wall. Acid mine drainage formation may continue after mine closure as pit lakes develop.…”

Section: Introductionmentioning

confidence: 99%

Geochemical Characterization of Pit Wall Rocks: A Preliminary Step in Predicting the Water Quality of Pit Lake

Kusuma

Tuheteru

Badhurahman

et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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The quality of pit lake water during development and final condition is affected by various factors, including geochemical characterization of materials of a pit wall, which may consist of in-situ and backfilling materials. This research aims to obtain a geochemical characterization of pit wall materials using 3 main laboratory tests and analysis, namely static test, mineralogical and elemental composition analysis, and kinetic test using free draining column leach test. Static test results show that 5 of 6 samples exhibit low paste pH and NAG pH. Pyrite is found in four samples and is responsible for acid mine drainage production. Some samples contain acid-consuming carbonates and oxides such as calcite and periclase. Four samples exhibit leachates’ pH values lower than 3,00, mostly during all cycles. Alongside the lithostratigraphic distribution of pit wall rocks, these results imply a potential occurrence of acid mine drainage that will become a critical issue for water quality development and final condition in pit lake formation. Therefore, these results become essential feedback for the stakeholders to plan and implement acid mine drainage management to minimize the adverse impact of acid mine drainage in pit lakes. Immediate understanding of the geochemical characteristics of leachates from pit wall rock, which control the overall mine water quality.

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Evaluation of Non-Acid-Forming material layering for the prevention of acid mine drainage of pyrite and jarosite

Cited by 16 publications

References 24 publications

Managing and Reforesting Degraded Post-Mining Landscape in Indonesia: A Review

Managing and Reforesting Degraded Post-Mining Landscape in Indonesia: A Review

Emerging Strategies for Mitigating Acid Mine Drainage Formation and Environmental Impacts: A Comprehensive Review of Recent Advances

Geochemical Characterization of Pit Wall Rocks: A Preliminary Step in Predicting the Water Quality of Pit Lake

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