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Artículos de revistas sobre el tema "Acid mine drainage"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 1 de agosto de 2024

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1

Wei, Ting Ting, Yang Yu, Zhen Qi Hu, Yuan Bo Cao, Yang Gao, Yao Qi Yang, Xin Jing Wang y Pei Jun Wang. "Research Progress of Acid Mine Drainage Treatment Technology in China". Applied Mechanics and Materials 409-410 (septiembre de 2013): 214–20. http://dx.doi.org/10.4028/www.scientific.net/amm.409-410.214.

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Acid mine drainages treatment technology is a hot issue in the mining industry. It summarizes the causes, the reaction mechanism and impact on the environment of acid mine drainage, and introduces the monitoring indicators of acid mine drainage. Further it focuses on the acid mine drainages terminal treatment technologies that including neutralization, sulfide precipitation, microbiological method, constructed wetlands, membrane method and the iron-carbon micro electrolysis, with the analysis of its theories, advantages, disadvantages and practical application. Meanwhile it introduces the major source control technologies, and further proposes the development tendency that is from terminal treatment technology to the combination of source control and terminal treatment technology. And its a focus and hotspot in the research of the acid mine drainage in China's future.

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2

Dang, Phuong Thao y Vu Chi Dang. "Mine Water Treatment in Hongai Coal Mines". E3S Web of Conferences 35 (2018): 01007. http://dx.doi.org/10.1051/e3sconf/20183501007.

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Acid mine drainage (AMD) is recognized as one of the most serious environmental problem associated with mining industry. Acid water, also known as acid mine drainage forms when iron sulfide minerals found in the rock of coal seams are exposed to oxidizing conditions in coal mining. Until 2009, mine drainage in Hongai coal mines was not treated, leading to harmful effects on humans, animals and aquatic ecosystem. This report has examined acid mine drainage problem and techniques for acid mine drainage treatment in Hongai coal mines. In addition, selection and criteria for the design of the treatment systems have been presented.

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3

Waldichuk, Mike. "Acid mine drainage study". Marine Pollution Bulletin 22, n.º 1 (enero de 1991): 5. http://dx.doi.org/10.1016/0025-326x(91)90430-z.

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4

Deshpande, V. P., S. P. Pande, S. K. Gadkari y K. L. Saxena. "Acid mine drainage treatment". Journal of Environmental Science and Health . Part A: Environmental Science and Engineering and Toxicology 26, n.º 8 (diciembre de 1991): 1387–408. http://dx.doi.org/10.1080/10934529109375704.

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5

Ji, Sangwoo. "Biotechnology in Passive Treatment of Acid Mine Drainage: a Review". Journal of the Korean Society of Mineral and Energy Resources Engineers 49, n.º 6 (2012): 844. http://dx.doi.org/10.12972/ksmer.2012.49.6.844.

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6

Wibowo, Yudha Gusti, Rahmat Fadhilah, Hutwan Syarifuddin, Anis Tatik Maryani y Intan Andriani Putri. "A Critical Review of Acid Mine Drainage Treatment". Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan 18, n.º 3 (18 de septiembre de 2021): 524–35. http://dx.doi.org/10.14710/presipitasi.v18i3.524-535.

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Acid mine drainage has been reported to cause various environmental and human health problems. Acid mine drainage is formed due to the oxidation of sulfide minerals to water and air. This paper reports the efforts that have been made in the management and treatment of acid mine drainage. Thirty papers from reputable publishers are used as references. Efforts to prevent the formation of acid mine drainage can be made by making proper drainage and dewatering systems, making non-acid formations for rocks that have the potential to be oxidized. Active and passive treatment methods can be used to treat acid mine drainage. The active treatment method uses materials and chemicals to reduce pollutant parameters, while the passive method utilizes natural processes to reduce pollutant parameters in acid mine drainage. The combination of active and passive methods using novel materials that have been researched is recommended to produce the best system that can thoroughly remove pollutants in acid mine drainage.

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7

Wolkersdorfer, C. "Acid Mine Drainage Tracer Tests". Journal American Society of Mining and Reclamation 2006, n.º 2 (2006): 2490–501. http://dx.doi.org/10.21000/jasmr06022490.

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8

Al-Zoubi, H., A. Rieger, P. Steinberger, W. Pelz, R. Haseneder y G. Härtel. "Nanofiltration of Acid Mine Drainage". Desalination and Water Treatment 21, n.º 1-3 (septiembre de 2010): 148–61. http://dx.doi.org/10.5004/dwt.2010.1316.

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9

Rodríguez-Galán, Mónica, Francisco M. Baena-Moreno, Sara Vázquez, Fátima Arroyo-Torralvo, Luis F. Vilches y Zhien Zhang. "Remediation of acid mine drainage". Environmental Chemistry Letters 17, n.º 4 (29 de mayo de 2019): 1529–38. http://dx.doi.org/10.1007/s10311-019-00894-w.

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10

Armstrong, Don y Michael Fanning. "Acid mine drainage—Community perceptions". Mine Water and the Environment 13, n.º 1 (marzo de 1994): 41–50. http://dx.doi.org/10.1007/bf02919607.

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11

Ramli, Muhammad, Nur Ilham Situru y Muhammad Thamrin. "Prediksi Laju Pembentukan Air Asam Tambang dengan Metode Column Leaching Test". Jurnal Penelitian Enjiniring 23, n.º 2 (30 de noviembre de 2019): 129–35. http://dx.doi.org/10.25042/jpe.112019.06.

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Prediction of Acid Mine Drainage Forming using Method of Column Leaching Test. One of the environmental problems in coal mining activities is the formation of acid mine drainage. Prediction of the formation of acid mine drainage is important as an effort to control environmental impacts. Acid mine water occurs with interactions between potentially acid-forming material with oxygen, bacteria and water. Objective of study is to analyze the potential for acid mine drainage forming based on material characteristics. The research method was carried out using static and kinetic tests. The static test method classifies materials according to the ability to produce clean acids with observed parameters such as paste pH, total sulfur, Acid Neutralizing Capacity (ANC), Net Acid Generation (NAG), Maximum Potential Acid (MPA), and Net Acid Producing Potential (NAPP). The Kinetic test method predicts the rate of acid-forming of a material. The kinetic test uses the Column Leaching Test Method by using material with composition designed to represent field condition. The kinetic method parameters are pH, electrical conductivity, acidity, alkalinity, sulfate content, and dissolved metal content (Fe, Mn, and Cd). Results of the static test classified the material into NAF Non-Acid Forming (NAF), Potential Acid Forming (PAF) and Uncertain (UC) material categories. The results of the Column Leaching Method classified the material into categories of potential and no potential to form acid mine water. The columns that have the potential to form acid mine drainage occur in columns with large amounts of tonnage of PAF material or those in the upper layer so that it reacts with oxygen. The columns that have no potential to produce acid mine drainage in columns with PAF material are in the middle layer or mixed with NAF material.

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12

Wibowo, Yudha Gusti, Candra Wijaya, Petrus Halomoan, Aryo Yudhoyono y Muhammad Safri. "Constructed Wetlands for Treatment of Acid Mine Drainage: A Review". Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan 19, n.º 2 (26 de mayo de 2022): 436–50. http://dx.doi.org/10.14710/presipitasi.v19i2.436-450.

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The coal mining industry is an industrial activity that impacts the environment. This activity will generate acid mine drainage due to the interaction of water, air and sulfide minerals. Acid mine drainage is wastewater with low pH and heavy metals content. These conditions will be given some negatives impact on the environment and human health. The low-cost, applicable and simple method to solve acid mine drainage in mining areas is constructed wetlands. Hence, this paper aims to describe the potential of wetlands as a low-cost and applicable method for acid mine drainage treatment. This paper also describes the holistic information about an overview of constructed wetlands, acid mine drainage (AMD) production and their negative impacts, recent trends in constructed wetlands, recommendation components of wetlands, potential application in rural areas and future considerations

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13

Aslam, Tooba, Vhahangwele Masindi, Abdulbari A. Ahmad y Efthalia Chatzisymeon. "Valorization of Acid Mine Drainage into an Iron Catalyst to Initiate the Solar Photo-Fenton Treatment of Municipal Wastewater". Environments 10, n.º 8 (1 de agosto de 2023): 132. http://dx.doi.org/10.3390/environments10080132.

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Acid mine drainage was utilized to catalyze the solar photo-Fenton treatment of wastewater coming from a sludge dewatering system. Acid mine drainage in the form of iron-rich liquid or synthesized minerals (namely magnetite, hematite, and goethite) was added in the wastewater, which was treated by means of the solar photo-Fenton process. The effects of operational parameters such as the amount of acid mine drainage, the wastewater matrix (i.e., synthetic and real wastewater), and the initial H2O2 concentration municipal wastewater’s organic content were explored. The results showed that using acid mine drainage (liquid phase) for wastewater treatment was more efficient than using the acid-mine-drainage-recovered minerals. Moreover, it was observed that the addition of acid mine drainage above 10.7 mL/L wastewater, which is equivalent to 50 mg/L iron, could substantially reduce the removal percentage of the chemical oxygen demand (COD). At the best conditions assayed, COD removal reached 99% after 90 min of photo-Fenton treatment under simulated solar light, in the presence of 30 mg/L Fe (i.e., 6.4 mL drainage/L of real wastewater) and 1000 mg/L H2O2 at a pH of 2.8. Therefore, the solar photo-Fenton treatment of municipal wastewater catalyzed by acid mine drainage may appear to be a promising method to effectively improve wastewater management, especially in areas with high solar energy potential.

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14

Lima, Paulo, Henrique Takuji Fukuma, Sandra Nakamatsu, Maria Gabriela Nogueira Campos, Maria Gabriela Nogueira Campos, Erika Coaglia Trindade Ramos y Neide Aparecida Mariano. "Contaminants Recovery from Acid Mine Drainage". Materials Science Forum 869 (agosto de 2016): 1023–27. http://dx.doi.org/10.4028/www.scientific.net/msf.869.1023.

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In some mines where sulfide minerals can occur in form of pyrite acid mine drainage (AMD) may occur, and it constitutes one of the main environmental impact. In order to prevent that AMD compromises aquifers layers and reaches mine surroundings, a treatment that consists in its neutralization with the use of a hydrated lime suspension is usually conducted. Contaminants that are soluble in AMD are precipitated, remaining in the solid phase. The work here presented aims recover uranium and rare earths found in one of these precipitates, which consists of calcium diuranate and metal hydroxides in a calcium sulfate matrix. This material contains approximately 0.25% of triuranium octoxide (U3O8) and 2.5% of rare earth oxides (TR2O3). The recovery of uranium and rare earths contained in the precipitate was performed through a hydrometallurgical process. The test resulted in a leaching with sulfuric acid presented solubilization of 96% for uranium and 90% for rare earths. A percentage yield of 99.7% and 99.9% was obtained in the steps of uranium extraction and re-extraction from the leachate, respectively.

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15

Williamson, Mark A., Carl S. Kirby y J. Donald Rimstidt. "IRON DYNAMICS IN ACID MINE DRAINAGE". Journal American Society of Mining and Reclamation 2006, n.º 2 (30 de junio de 2006): 2411–23. http://dx.doi.org/10.21000/jasmr06022411.

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16

Lazo, Daniel. "Acid mine drainage mitigation: A review". Ingeniería Industrial, n.º 039 (diciembre de 2020): 97–118. http://dx.doi.org/10.26439/ing.ind2020.n039.4917.

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Acid mine drainage (AMD) or acid rock drainage (ARD) refers to the effluents from coal and metal mines. AMD is a common phenomenon which occurs naturally as a process of rock weathering, but is increased in large scale due to human activities such as construction contracts (transportation corridors, dam build, etc.) and mining operations. This phenomenon denotes the acidic water that is produced during exposure of sulphide minerals (mainly pyrite) to air and water through a natural process, and creates sulphuric acid. AMD is a hazard to animals, aquatic life and human beings as it increases the acidity and dissolves metals. Preventing and treating AMD is an important issue in a mine site not only during operation life but also after the mine is abandoned.

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17

Demetriou, Antri, Michaela Lysandrou, Antonios Charalambides y Ioannis Pashalidis. "Acid mine drainage treatment with dunite". Desalination and Water Treatment 16, n.º 1-3 (abril de 2010): 129–33. http://dx.doi.org/10.5004/dwt.2010.1049.

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18

Luptáková, Alena, Magdaléna Bálintová, Jana Jenčárová, Eva Mačingová y Mária Praščáková. "Metals recovery from acid mine drainage". Nova Biotechnologica et Chimica 10, n.º 1 (30 de agosto de 2021): 23–32. http://dx.doi.org/10.36547/nbc.1060.

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The objectives of the present work give the results view of some physicochemical, chemical and biological-chemical methods for the heavy metals removal from Acid Mine Drainage (AMD). The background of the studied physicochemical methods was the adsorption by turf, chemical methods the heavy metals precipitation by the neutralization with NaOH. The principles of the biological-chemical methods were the bioprecipitation by the applications of sulphate-reducing bacteria (SRB), the sorption by the bacterially produced iron sulphides and sorption by brown coal bio-modified by micromycetes.

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19

Oh, Seok-Young y Myong-Keun Yoon. "Biochar for Treating Acid Mine Drainage". Environmental Engineering Science 30, n.º 10 (octubre de 2013): 589–93. http://dx.doi.org/10.1089/ees.2013.0063.

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20

Luptáková, Alena, Eva Mačingová, Ingrida Kotuličová y Dominika Rudzanová. "Sulphates Removal from Acid Mine Drainage". IOP Conference Series: Earth and Environmental Science 44 (octubre de 2016): 052040. http://dx.doi.org/10.1088/1755-1315/44/5/052040.

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21

Baker, Brett J. y Jillian F. Banfield. "Microbial communities in acid mine drainage". FEMS Microbiology Ecology 44, n.º 2 (mayo de 2003): 139–52. http://dx.doi.org/10.1016/s0168-6496(03)00028-x.

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22

Simate, Geoffrey S. y Sehliselo Ndlovu. "Acid mine drainage: Challenges and opportunities". Journal of Environmental Chemical Engineering 2, n.º 3 (septiembre de 2014): 1785–803. http://dx.doi.org/10.1016/j.jece.2014.07.021.

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23

Rao, S. R., R. Gehr, M. Riendeau, D. Lu y J. A. Finch. "Acid mine drainage as a coagulant". Minerals Engineering 5, n.º 9 (septiembre de 1992): 1011–20. http://dx.doi.org/10.1016/0892-6875(92)90128-v.

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24

Paikaray, Susanta. "Arsenic Geochemistry of Acid Mine Drainage". Mine Water and the Environment 34, n.º 2 (11 de noviembre de 2014): 181–96. http://dx.doi.org/10.1007/s10230-014-0286-4.

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25

Singh, Gurdeep. "Mine water quality deterioration due to acid mine drainage". International Journal of Mine Water 6, n.º 1 (marzo de 1987): 49–61. http://dx.doi.org/10.1007/bf02498139.

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26

Jamal, A., BB Dhar y S. Ratan. "Acid mine drainage control in an opencast coal mine". Mine Water and the Environment 10, n.º 1 (marzo de 1991): 1–16. http://dx.doi.org/10.1007/bf02914805.

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27

ASTON, R. LEE. "WATER POLLUTION BY ABANDONED MINE SITES; ACID MINE DRAINAGE; MINED LAND RECLAMATION". Mineral Resources Engineering 10, n.º 01 (marzo de 2001): 85–114. http://dx.doi.org/10.1142/s0950609801000439.

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28

ASTON, R. LEE. "WATER POLLUTION BY ABANDONED MINE SITES: ACID MINE DRAINAGE; MINED LAND RECLAMATION". Mineral Resources Engineering 10, n.º 02 (junio de 2001): 235–43. http://dx.doi.org/10.1142/s0950609801000579.

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29

ASTON, R. LEE. "WATER POLLUTION BY ABANDONED MINE SITES: ACID MINE DRAINAGE; MINED LAND RECLAMATION". Mineral Resources Engineering 10, n.º 04 (diciembre de 2001): 467–500. http://dx.doi.org/10.1142/s0950609801000798.

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30

Moersidik, S. S., N. E. Yulianita, S. U. Hasanah, A. E. Hidayat, M. A. Pratama y C. R. Priadi. "THE PERFORMANCE OF FLY ASH-BASED COAGULANTS TO REMOVE HEAVY METALS FROM ACID MINE DRAINAGE". RASAYAN Journal of Chemistry 15, n.º 03 (2022): 2016–25. http://dx.doi.org/10.31788/rjc.2022.1536996.

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As one of the largest coal-producing countries, Indonesia’s mining activity can increase the potential for significant environmental damage, particularly the increased production of wastewater and acid mine drainage. This study focused on modified fly ash’s ability to remove turbidity and heavy metals from artificial acid mine drainage. The modification was applied by extracting fly ash, leached with different acids like hydrochloric and sulfuric acid, which can be utilized as coagulants using jar tests. The effects of detention time, initial and final potential of hydrogen, and coagulant dose were investigated. The result showed that the modified fly ash coagulants show potential use in reducing turbidity, copper, and zinc of artificial acid mine drainage. The fly ash-hydrochloric acid coagulant showed better results in removing zinc, while the fly ash-sulfuric acid coagulant is better in removing copper.

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31

Das, Pratyush Kumar. "Phytoremediation and Nanoremediation : Emerging Techniques for Treatment of Acid Mine Drainage Water". Defence Life Science Journal 3, n.º 2 (23 de marzo de 2018): 190. http://dx.doi.org/10.14429/dlsj.3.11346.

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<p>Drainage from mining sites containing sulfur bearing rocks is known as acid mine drainage (AMD). Acid mine drainage water is a serious environmental pollutant that has its effects on plants, animals and microflora of a region. Mine water drainage mainly occurs due to anthropogenic activities like mining that leave the sulfur bearing rocks exposed. This drainage water poses as a potent soil, water and ground water pollutant. Although a lot of remediation measures have been implemented in the past but, none of them have been able to solve the problem completely. This review intends to focus on new emerging and better techniques in the form of phytoremediation and nanoremediation for treatment of acid mine drainage water. Besides, the review also gives more importance to the phytoremediation technique over nanoremediation because of the cost effectiveness and eco-friendly nature of the first and the nascent status of the latter. A hypothetical model discussing the use of hyperaccumulator plants in remediation of acid mine water has been proposed. The model also proposes natural induction of the phytoremedial ability of the plants involved in the remediation process. The proposed model assisted by inputs from further research, may be helpful in proper treatment of acid mine drainage water in the near future.</p>

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32

Utami, Umi Baroroh Lili, Heru Susanto y Bambang Cahyono. "Neutralization Acid Mine Drainage (AMD) using NaOH at PT. Jorong Barutama Grestone, Tanah Laut, South Borneo". IJCA (Indonesian Journal of Chemical Analysis) 3, n.º 1 (15 de marzo de 2020): 17–21. http://dx.doi.org/10.20885/ijca.vol3.iss1.art3.

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Acid mine drainage (AMD) is mine water with a low pH derived from the oxidation of pyrite containing sulfide with water and air to produce sulfide acid (H2SO4) containing free sulfate. Acid mine drainage treatment carried out at PT Jorong Barutama Greystone Tanah Laut uses limestone at a cost of Rp.220. - per cubic meter of water. This study was conducted to determine the use of technical NaOH for changes in mine acid quality (pH. Fe and Mn). The method carried out by active handling is by adding technical NaOH into mine acid water. The results showed that neutralization of acid mine drainage using technical NaOH 10% to pH 8. was able to reduce Fe by 18.60 - 25.42% and Mn by 31.95 - 39.27%. at a cost of Rp.327. - per meter cubic of water

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33

Syukur, Syukur, Ahmad Tawfiequrrahman Yuliansyah y Agus Prasetya. "The Adsorption Characteristics of Heavy Metals in Acid Mine Drainage from Abandoned Tin Mines on Lightweight Expanded Clay Aggregate (LECA)". Key Engineering Materials 949 (26 de julio de 2023): 91–101. http://dx.doi.org/10.4028/p-cjar1u.

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Abandoned tin mines produce acid mine drainage in their water basin. If not treated well, it will damage environmental ecosystem by entering rivers or other water bodies. This acid mine drainage is attempted to be remediated by adsorption technique. The adsorbent used in this study is Lightweight Expanded Clay Aggregate (LECA) because its base material is natural clay. LECA is commonly used for hydroponics and constructions. LECA is made from natural clay that being heated at temperature over 1100°C. This study aims to determine how significant LECA in adsorbing metals in acid tin mine drainage. This research used two materials namely LECA and tin acid mine drainage. Both materials were contacted for two days in shaker bath. The results of this study were the adsorbing Fe(II) and Cu(II) on LECA could be approached by the Langmuir-Freundlich (LF) combined model where the Cµ,max are 0.406 and 0.020 mg/g of adsorbent, respectively. Unlike the other two metals, Sn(II) was more likely to experience precipitation instead of adsorption because of increasing of pH value. The conclusion, heavy metals in tin acid mine drainage could be remediated well by using LECA.

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34

Liu, Guang Wei y Run Cai Bai. "Development of the Acidic Mining Wastewater Treatment Technology". Applied Mechanics and Materials 295-298 (febrero de 2013): 1372–75. http://dx.doi.org/10.4028/www.scientific.net/amm.295-298.1372.

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The main formation condition and harmfulness of the acidic mining waste water's were analyzed in this paper. The treatment technology of the acid mine drainage's was briefly introduced. The research development of acid mine drainage was summarized in recent years. It was the fact that developing the efficient, cheap, safe and easy treatment technology of acid mine should be necessary and inevitably and some success management experiences of acidic waste water were applied in acidic mining wastewater.

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35

Luptakova, Alena, Tomislav Spaldon y Magdalena Balintova. "Remediation of Acid Mine Drainage by Means of Biological and Chemical Methods". Advanced Materials Research 20-21 (julio de 2007): 283–86. http://dx.doi.org/10.4028/www.scientific.net/amr.20-21.283.

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The formation and treatment of acid mine drainage is the biggest environmental problems relating to mining and processing activities in the worldwide. Various methods are used for the sulphates and heavy metals removal from acid mine drainage in the world, but any of them is universal. Main aim of the paper is the interpretation of chemical and biological-chemical methods for the metals and sulphates removal from acid mine drainage sample. The chemical method is based on the sulphates precipitation by the sodium aluminate in combination with the calcium hydrate. The biological-chemical method is based on the application of sulphate-reducing bacteria (SRB). A sample of acid mine drainage from the abandoned and flooded deposit of Smolník located in Slovak republic was used in this study.

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36

Shabani, Kumars Seifpanahi, Faramarz Doulati Ardejani, Khshayar Badii y Mohammad Ebrahim Olya. "ACID MINE DRAINAGE TREATMENT BY PERLITE NANOMINERAL, BATCH AND CONTINUOUS SYSTEMS". Archives of Mining Sciences 59, n.º 1 (1 de marzo de 2014): 107–22. http://dx.doi.org/10.2478/amsc-2014-0008.

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Abstract In this paper the adsorption activity of perlite nanoparticles for removal of Cu2+, Fe2+ and Mn2+ ions at Iran Sarcheshmeh copper acid mine drainage was discussed. Thus, raw perlite that provided from internal resource was modified and prepared via particles size reduction to nano scale and characterized by X-ray diffraction, X-ray fluorescence, scanning electron microscopy, transmission electron microscopy, Fourier transforms infrared and BET specific surface area analysis. The results of acid mine drainage show that pH of acid mine drainage is 5.1 and Cu2+, Fe2+ and Mn2+ ions are 10.5, 4.1 and 8.3 ppm, respectively. Firstly in the batch system the influence of adsorbent dose and temperature parameters were considered and then isothermal and kinetic models were investigated. According to the results the Langmuir isotherm and pseudo-second order kinetic model showed better correlation with the experimental data than other isotherm and kinetic models. Obtained thermodynamic parameters such as ΔG°, ΔH° and ΔS° show that the Cu2+, Fe2+ and Mn2+ ions adsorption from acid mine drainage is spontaneous and endothermic. Finally, perlite nanoparticles adsorbent was packed inside a glass column and used for the removal of heavy metals in 1, 3, 5 ml/min acid mine drainage flow rates, the breakthrough curves show that the column was saturated at 180, 240 and 315 min for different flow rates, respectively. According to the obtained results, this abundant, locally available and cheap silicate mineral showed a great efficiency for the removal of heavy metal pollutants from acid mine drainage and can be utilized for much volume of acid mine drainage or industrial scale.

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37

Siswati, S., H. Pratama y M. Giatman. "Adsorption using fly ash from stam power plants for acid mine drainage treatment". IOP Conference Series: Earth and Environmental Science 1173, n.º 1 (1 de mayo de 2023): 012040. http://dx.doi.org/10.1088/1755-1315/1173/1/012040.

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Abstract Acid mine drainage has a negative impact on the environment. Adsorption is an effective and efficient method for acid mine drainage treatment, besides that adsorption does not have a negative impact on the environment. This study aims to analyze the ability of fly ash from a steam power plant as an adsorbent in acid mine drainage treatment. Using experimental methods and batch adsorption mechanisms, with variations of adsorption parameters carried out including adsorbent dose, stirring time, and stirring speed. The test results show that fly ash is very effective in acid mine drainage treatment. Where there is an increase in pH and a decrease in the concentration of Mn and Fe metals in acid mine drainage to match the quality standard. The increase in pH was in the range of 6.3 to 7.4 with the highest effectiveness of 54.05%. In the reduction of Mnmetalthe highest effectiveness was 78.14%, while in Fe metal the highest effectiveness was 85.83%. Fly ash can be used and is very useful in reducing the impact on public health.

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38

Mansur, Irdika, Aditya Rizkyandana y Priyanto Priyanto. "Ketahanan Bibit Kayu Putih (Melaleuca cajuputi) pada Berbagai Media Tercemar Air Asam Tambang". Journal of Tropical Silviculture 13, n.º 03 (29 de diciembre de 2022): 208–17. http://dx.doi.org/10.29244/j-siltrop.13.03.208-217.

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Cajeput (Melaleuca cajuputi) is widely used as a post-mining revegetation plant. The addition of organic matter to post-mining land can improve the physical, chemical, and biological conditions of the soil that lead on to increasing growth and endurance of cajeput in polluted land by acid mine drainage. This study aims to analyze the effect of compost mixture media and roasted husk mixture media to endurance and growth of cajeput seedling and also to analyze the effect of acid mine drainage concentration on the endurances of cajeput seedling on various media. This study used a completely randomized design with two factors consisting of acid mine drainage concentration and type of media. The results of this study indicate that the concentration of acid mine drainage has no significant effect on the growth of height, diameter, and number of leaves, also on total wet weight, total dry weight, moisture content, and root length while the type of media used has a significant effect on growth in height, diameter, and the number of leaves. Keywords: acid mine drainage, compost, Melaleuca cajuputi, roasted husk

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39

MarwA, A. "Evaluation of wetland plants treatment potentials for acid mine drainage in Tanzania". Nigerian Journal of Technology 43, n.º 2 (19 de julio de 2024): 381–90. http://dx.doi.org/10.4314/njt.v43i2.21.

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Acid mine drainage occurs when sulfide minerals in mining activities come into contact with water and air, generating water with a low pH, high levels of sulfate, and metals. Treating acid mine drainage is a major challenge in gold mining operations worldwide and can be very costly. This study aims to screen and experimentally test potential local wetland plants for acid mine drainage treatment. Selected wetland plants were tested in a 12-liter plastic container, simulating a wetland treatment. The results of this study revealed that four out of six plants survived under acid mine drainage conditions. These plants included Cyperus imbricatus, Pennisetum purpureum, Typha latifolia, and Phragmites mauritianus,which all showed survival over the 63 days of experimental monitoring. The remaining two plants, Ipomea aquatica and water lotus (Nymphaeaceae), died within seven days of the experiment. The surviving plants were able to increase the pH from 3.2 to 7.1 and lower the levels of sulfate and metals in the acid mine drainage water. Furthermore, these four plants were able to improve the water quality by more than 94%, reducing heavy metal levels significantly (Mn from 53 to 1 mg/L, Ni from 2.4 to 0.3 mg/L, and Fe from 2.3 to 0.03 mg/L). This study suggests that selected local wetland plants have the potential to be a sustainable technology for treating acid mine drainage water.

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40

Li, Xiang, Hui Xin Dai y Xin Long Yang. "The Generation and Treatment of Acid Mine Drainage". Advanced Materials Research 726-731 (agosto de 2013): 1985–88. http://dx.doi.org/10.4028/www.scientific.net/amr.726-731.1985.

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The paper analyses the major harm and the forming mechanism of acid mine drainage (AMD). Explain the treatment technology of acid mine drainage respectively from physical, chemical and biological aspects, and discuss the advantages and defects of various methods.

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41

Plaza-Cazón, Josefina, Leonardo Benítez, Jésica Murray, Pablo Kirschbaum y Edgardo Donati. "Influence of Extremophiles on the Generation of Acid Mine Drainage at the Abandoned Pan de Azúcar Mine (Argentina)". Microorganisms 9, n.º 2 (29 de enero de 2021): 281. http://dx.doi.org/10.3390/microorganisms9020281.

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The risk of generation of acid drainages in the tailings of the Pan de Azúcar mine that closed its activities more than three decades ago, was evaluated through biooxidation studies using iron- and sulfur-oxidizing extremophilic leaching consortia. Most of tailings showed a high potential for generating acid drainage, in agreement with the results from net acid generation (NAG) assays. In addition, molecular analysis of the microbial consortia obtained by enrichment of the samples, demonstrated that native leaching microorganisms are ubiquitous in the area and they seemed to be more efficient in the biooxidation of the tailings than the collection microorganisms. The acid drainages detected at the site and those formed by oxidation of the tailings, produced a significant ecotoxicological effect demonstrated by a bioassay. These drainages, even at high dilutions, could seriously affect a nearby Ramsar site (Laguna de Pozuelos) that is connected to the Pan de Azúcar mine through a hydrological route (Cincel River).

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42

Zhao, Jiang Qian, Hai Yan Ju, Peng Zhang y Shao Lin Liu. "Leakage Mechanism of the Wastewater Dam in Metal Mine and its Anti-Seepage Technology". Applied Mechanics and Materials 641-642 (septiembre de 2014): 416–19. http://dx.doi.org/10.4028/www.scientific.net/amm.641-642.416.

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The acid mine drainage has the widest pollution range and biggest harm degree, which forms the potential corrosion hazards to sewage dams in mental mine. Based on the investigation and analysis of the acid mine drainage, the evolution law influence of physical and mechanical properties and leakage mechanism of sewage dam is revealed under the action of the acid mine drainage. In order to prolong its service life and insure the safe operation of the construction engineering, the program of concrete anti-seepage wall with coal fly ash is adopted, which can improve the impermeability and structure of concrete, enhancing the anti-seepage wall durability under acidic environment, providing the basis of scientific data and technical basis for acid mine water environment of basic construction.

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43

Shane, Agabu, Xinyang Xu, John Siame, Alick Nguvulu, Tewodros Mitiku Tena, Musango Lungu, Sydney Chinyanta, Jackson Kawala, Victor Mwango Bowa y Brian Chirambo. "Removal of Copper from Acid Mine Drainage (AMD) or Acid Rock Drainage (ARD)". Journal of Water Resource and Protection 13, n.º 07 (2021): 435–54. http://dx.doi.org/10.4236/jwarp.2021.137026.

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44

Heikkinen, P. M., M. L. Räisänen y R. H. Johnson. "Geochemical Characterisation of Seepage and Drainage Water Quality from Two Sulphide Mine Tailings Impoundments: Acid Mine Drainage versus Neutral Mine Drainage". Mine Water and the Environment 28, n.º 1 (30 de noviembre de 2008): 30–49. http://dx.doi.org/10.1007/s10230-008-0056-2.

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45

Rahayu, Lestari Sri, Maming y Pipi Diansari. "Acid Mine Drainage Management Plan and Utilization of Fly Ash as Neutralizing Agent (A Case Study of Post-Mining Pits in Palaran, East Kalimantan)". IOP Conference Series: Earth and Environmental Science 1272, n.º 1 (1 de diciembre de 2023): 012012. http://dx.doi.org/10.1088/1755-1315/1272/1/012012.

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Abstract With high levels of domestic production, consumption, and coal exports in East Kalimantan, the outcome will be directly proportionate. Disruption of abiotic, biotic, and cultural factors, such as the environmental impact on Kopi Palaran Street, where there are four abandoned post-mining pits surrounded by residential areas and filled with acid mine drainage. A new issue resulting from the effects of post-mining activities is residents using acid mine drainage from post-mining pits without treatment. The acidity level of the acid mine drainage that the people of Kopi Palaran Street used for daily sanitary reasons ranged from pH 2.8 to pH 3.3 and included relatively low-level Fe and Mn metal. According to the results of laboratory tests on the acid mine neutralisation process, adding 25 g of fly ash to 1000 mL of acid mine drainage can raise the pH of the acid mine water to 8.7 due to the process of alkaline minerals of the fly ash, such as CaO, dissolving acidic minerals. It can also increase the Fe metal content to 13.1 mg/L due to the precipitation of ferric hydroxide, while lowering the Mn metal content to 0.38 mg/L.

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46

Usman, Dudi Nasrudin, Sri Widayati, Sriyanti Sriyanti y Era Setiawan. "Rock Formation Acid Mine Drainage in Epithermal Gold Mineralization, Pandeglang, Banten Province". Journal of Geoscience, Engineering, Environment, and Technology 4, n.º 4 (30 de diciembre de 2019): 271–76. http://dx.doi.org/10.25299/jgeet.2019.4.4.3903.

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Mine acid water is acidic water and contains iron and sulfate, which is formed under natural conditions when geological strata containing pyrites are exposed to an oxidizing atmosphere or environment. One of the impacts of the mineralization zone where there is a mining process is the potential for the formation of acid mine drainage, especially in the Cibaliung gold mineralization area and its surroundings, Pandeglang Regency, Banten Province. Acid-forming sulfide minerals include pyrite (FeS2), headquarters (FeS2), picoliters (FexSx), calcocytes (CuS), covellite (CuS), chalcopyrite (CuFeS2), molybdenite (MoS), mulenite (NiS), chalocytes (CuS), covellite (CuS), chalcopyrite (CuFeS2), molybdenite (MoS), mulenite (NiS), chalocytes (CuS), covellite (CuS), chalcopyrite (CuFeS2), molybdenite (MoS), mulenite (NiS), galena (PbS) ) and sphalerite (ZnS). Of all these minerals, pyrite is the most dominant sulfide in acid formation. Alkaline mine water (alkaline mine drainage) is mine water that has an acidity level (pH) of 6 or more, containing alkalinity but still containing dissolved metals that can produce acids. The quality of mine water, acid or alkali, depends on the presence or absence of acid mineral content (sulfides) and alkaline materials in the geological strata. Acid water formation tends to be more intensive in mining areas. This can be prevented by avoiding exposure to sulfide-containing materials in the free air. Acid-forming sulfide minerals include pyrite (FeS2), headquarters (FeS2), picoliters (FexSx), calcocytes (CuS), covellite (CuS), chalcopyrite (CuFeS2), molybdenite (MoS), mulenite (NiS), chalocytes (CuS), covellite (CuS), chalcopyrite (CuFeS2), molybdenite (MoS), mulenite (NiS), chalocytes (CuS), covellite (CuS), chalcopyrite (CuFeS2), molybdenite (MoS), mulenite (NiS), galena (PbS) ) and sphalerite (ZnS). Of all these minerals, pyrite is the most dominant sulfide in acid formation. Formation of potential acidic water also occurs in tailings which are residues/processing residues containing sulfide minerals. The formation of acid mine drainage does not always develop in every sulfide-ore mining. In certain types of ore deposits, there are neutralizing agents which prevent the formation of acid mine drainage.

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47

Jin, Song, Jeffrey S. Cooper, Paul H. Fallgren y Martin W. Stearns. "BIOLOGICAL SOURCE TREATMENT OF ACID MINE DRAINAGE". Journal American Society of Mining and Reclamation 2006, n.º 1 (2006): 238–300. http://dx.doi.org/10.21000/jasmr06010283.

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Kaye, Peter. "SUCCESSFUL DEWATERING OF ACID MINE DRAINAGE MATERIALS". Journal American Society of Mining and Reclamation 2006, n.º 2 (30 de junio de 2006): 935–42. http://dx.doi.org/10.21000/jasmr06020935.

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Demchik, Michael y Keith Garbutt. "Growth of Woolgrass in Acid Mine Drainage". Journal of Environmental Quality 28, n.º 1 (enero de 1999): 243–49. http://dx.doi.org/10.2134/jeq1999.00472425002800010029x.

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50

Johnson, D. Barrie y Kevin B. Hallberg. "Acid mine drainage remediation options: a review". Science of The Total Environment 338, n.º 1-2 (febrero de 2005): 3–14. http://dx.doi.org/10.1016/j.scitotenv.2004.09.002.

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