Article
Engineering, Environmental
Luciano Bernardo Jose, Ana Claudia Queiroz Ladeira
Summary: This study focuses on using ion exchange process to recover and separate rare earth elements (REE) from acid mine effluent, achieving successful fractionation with NH(4)EDTA and an overall recovery rate of 83%.LEWATIT (R) MDS 200H resin has shown effectiveness in recovering and fractionating REE, demonstrating the capability to separate heavy REE from light REE and metal impurities, with promising results.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Environmental Sciences
Jerome Viers, Remi Freydier, Jose Antonio Grande, Cyril Zouiten, Aurelie Marquet, Sophie Delpoux, Maria Santisteban, Oleg S. Pokrovsky, Juan Carlos Fortes, Jose Miguel Davila, Aguasante Sarmiento, Stephane Audry, Ana Luis, Merlin Meheut, Philippe Behra, Jose Darrozes, Christophe Monnin
Summary: Mining areas in the Iberian Pyrite Belt have caused severe contamination of soils and water with metals and metalloids. Our study reveals that the spatial distribution of copper isotopes in pit lakes is controlled by water-rock interaction processes, while attenuation processes in the river result in the precipitation of secondary minerals and preferential retention of heavy isotopes. The constant isotopic signature in the terminal lake suggests the involvement of both biotic and abiotic processes in copper fractionation.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Microbiology
Shu-ning Ou, Jie-Liang Liang, Xiao-min Jiang, Bin Liao, Pu Jia, Wen-sheng Shu, Jin-tian Li
Summary: The study characterized the physiological, genomic, and transcriptomic features of fungi in acid mine drainage (AMD) environments, with a focus on A. bohemica. The fungus showed potential for biologically induced mineralization and exhibited acidophilic traits. Genomic and transcriptomic analysis revealed genes related to metabolic pathways, acid stress response and heavy metal resistance in A. bohemica's genome, providing insights into the adaptation mechanisms of fungi in AMD environments.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Engineering, Environmental
Zhixiang She, Xin Pan, Jin Wang, Rui Shao, Guangcheng Wang, Shaoping Wang, Zhengbo Yue
Summary: Acid mine drainage (AMD) lakes exhibit tight geochemical gradients in the water column, resulting in significant changes in prokaryotic microbial community structure and increased diversity with depth. Heterogeneous selection is the main assembly process in the surface water, while stochastic processes become more important with depth.
Article
Geochemistry & Geophysics
Naoto Nishimoto, Yosuke Yamamoto, Saburo Yamagata, Toshifumi Igarashi, Shingo Tomiyama
Summary: Understanding the origin of acid mine drainage (AMD) in a closed mine and groundwater flow system aids in developing strategies for environmental protection. Water samples taken at Osarizawa Mine, Japan, showed that the quality and stable isotope ratios of AMD differ from groundwater/river water, indicating the recharge areas of AMD are limited to the vicinity of the mine.
Article
Engineering, Environmental
Matome Mothetha, Kefeni Kebede, Vhahangwele Masindi, Titus A. M. Msagati
Summary: This study meticulously reports the synergistic effects of mechanochemically synthesized metakaolinite-Ca-rich-MgO nanocomposite for effective treatment of acid mine drainage (AMD). Advanced analytical techniques and instruments, such as FTIR, HR-FIB/SEM, EDS, XRF, and XRD, were used to support the obtained results. Optimal conditions were observed for mixing time, feedstock dosage, temperature, and pH. The metal content in real AMD matrices was significantly reduced, and sulphate levels were greatly reduced. This study holds great promise for sustainable management of AMD effluents from coal mining activities.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Geochemistry & Geophysics
M. Rizzi, N. H. Schovsbo, J. Hovikoski, H. P. Nytoft, C. Korte, N. T. T. Thuy, J. Bojesen-Koefoed, L. H. Nielsen, I. Abatzis, N. Q. Tuan, D. M. Toan, N. T. Huyen, M. B. W. Fyhn
Summary: This study presents a high-resolution carbon isotope record of Oligocene deep syn-rift lakes in the Gulf of Tonkin, Vietnam, improving age estimates and providing insight into in-lake fractionation processes. The comparison of carbon isotopes reveals the dominant factors controlling fractionation in the lake, with lake productivity induced fractionation prevailing during more oxygenated periods and degradation processes dominating during more anoxic periods. The oxygenation of the lake was influenced by changes in tectonic setting and strengthened by climatic influence.
Article
Environmental Sciences
Zdzis law M. Migaszewski, Agnieszka Ga Luszka
Summary: Rare earth elements (REEs) were found in acid mine drainage samples from the Wisłówka area in Poland. Two benchmark acid pit ponds, Podwisłówka and Wisłówka Duza, showed different contents of sulfates, phosphates, REEs and metal(loid)s. The isotopic composition of the REEs in the ponds indicated preferential fractionation during on-site weathering of pyrite and REE-bearing minerals in different rock media.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Yu Liu, Lezhang Wei, Dinggui Luo, Tangfu Xiao, Aleksei Lekhov, Xianming Xie, Xuexia Huang, Xiaotong Su
Summary: This study found that the concentration of Tl in shallow groundwater is positively correlated with oxidation-reduction potential and negatively correlated with Cl content. Tl exists in various forms in groundwater, and changes in redox conditions can cause Tl to migrate from solute to aquifer.
Article
Water Resources
Sepideh Mali, Hadi Jafari, Reza Jahanshahi, Rahim Bagheri
Summary: Seepage with AMD characteristics is observed in the Dareh-Zar copper mine and a groundwater flow model was established to determine the source of this groundwater. Two distinct groundwater sources were identified and it was found that the recharge zones are at higher elevations than the pit area.
MINE WATER AND THE ENVIRONMENT
(2022)
Article
Microbiology
Xin Pan, Zhengbo Yue, Zhixiang She, Xiao He, Shaoping Wang, Xin Chuai, Jin Wang
Summary: This study analyzed the structural traits and interactions of eukaryotes (primarily fungi and microalgae) in stratified acidic pit lakes formed by acid mine drainage. It was found that microalgae and fungi dominated different water layers, with Chlorophyta dominating the well-lit aerobic surface layer and Basidiomycota being more abundant in the dark anoxic lower layer. The study also revealed prevalent reciprocal relationships between fungi and microalgae in extremely acidic environments, and identified the influence of environmental gradients on the eukaryotic community structure.
Article
Environmental Sciences
Tianhao Du, Anna Bogush, Paul Edwards, Peter Stanley, Ana T. Lombardi, Luiza C. Campos
Summary: This study investigated the role of indigenous algae in removing metals from acid mine drainage and found that metals such as Zn, Cu, and Cd can be adsorbed onto and accumulated in the algae, while Pb and Fe are mainly bioaccumulated in the algae. Indigenous algae can serve as a biogeochemical barrier for metal accumulation and can be used as bioindicators for assessing water pollution.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Biotechnology & Applied Microbiology
Andrea Watzinger, Melanie Hager, Thomas Reichenauer, Gerhard Soja, Paul Kinner
Summary: The study compared the biodegradation of hexadecane and decane in different filter materials (sand, sand amended with biochar, expanded clay) collected from constructed wetlands. It was found that mineralization rate of hexadecane was higher in sand filters, while adsorption/desorption of hydrocarbons was observed in expanded clay. Additionally, hydrogen isotope fractionation was rarely recorded in expanded clay and sand & biochar filters during decane biodegradation.
Article
Environmental Sciences
Amira Merchichi, Malek Ould Hamou, Mohamed Edahbi, Ema Bobocioiu, Carmen M. Neculita, Mostafa Benzaazoua
Summary: The study investigated the passive treatment of acid mine drainage (AMD) using phosphate mining residuals from the Djebel Onk mine in Algeria. Results showed that the phosphatic materials efficiently neutralized AMD and removed metals through sorption and precipitation mechanisms. Phosphatic limestone wastes exhibited the highest acid neutralization potential among the lithologies tested.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Review
Engineering, Multidisciplinary
Ifeanyi Michael Smarte Anekwe, Yusuf Makarfi Isa
Summary: Pollution, especially acid mine drainage (AMD) caused by anthropogenic and industrial activities, is a major threat to the ecosystem. This study critically reviews various bioremediation methods for AMD contamination treatment and discusses their challenges and prospects. The research shows that bioremediation has proven effective and environmentally friendly, but large-scale application remains a challenge.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Article
Geosciences, Multidisciplinary
Benjamin R. Cowie, Bruce James, Bernhard Mayer
Article
Biology
C. Harwood Theisen, D. Y. Sumner, T. J. Mackey, D. S. S. Lim, A. L. Brady, G. F. Slater
Article
Geochemistry & Geophysics
Danielle N. Simkus, Greg F. Slater, Barbara Sherwood Lollar, Kenna Wilkie, Thomas L. Kieft, Cara Magnabosco, Maggie C. Y. Lau, Michael J. Pullin, Sarah B. Hendrickson, K. Eric Wommack, Eric G. Sakowski, Esta van Heerden, Olukayode Kuloyo, Borja Linage, Gaetan Borgonie, Tullis C. Onstott
GEOCHIMICA ET COSMOCHIMICA ACTA
(2016)
Article
Multidisciplinary Sciences
Maggie C. Y. Lau, Thomas L. Kieft, Olukayode Kuloyo, Borja Linage-Alvarez, Esta Van Heerden, Melody R. Lindsay, Cara Magnabosco, Wei Wang, Jessica B. Wiggins, Ling Guo, David H. Perlman, Saw Kyin, Henry H. Shwe, Rachel L. Harris, Youmi Oh, Min Joo Yi, Roland Purtschert, Greg F. Slater, Shuhei Ono, Siwen Wei, Long Li, Barbara Sherwood Lollar, Tullis C. Onstott
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2016)
Article
Multidisciplinary Sciences
L. Li, B. A. Wing, T. H. Bui, J. M. McDermott, G. F. Slater, S. Wei, G. Lacrampe-Couloume, B. Sherwood Lollar
NATURE COMMUNICATIONS
(2016)
Article
Biology
A. L. Brady, J. Goordial, H. J. Sun, L. G. Whyte, G. F. Slater
Article
Geosciences, Multidisciplinary
Benjamin R. Cowie, Bruce James, Michael Nightingale, Bernhard Mayer
Article
Geosciences, Multidisciplinary
Benjamin R. Cowie, Bruce James, Michael Nightingale, Bernhard Mayer
Article
Environmental Sciences
Nagissa Mahmoudi, Roberta R. Fulthorpe, Leanne Burns, Silvia Mancini, Greg F. Slater
ENVIRONMENTAL POLLUTION
(2013)
Article
Engineering, Environmental
Nagissa Mahmoudi, Teresita M. Porter, Andrew R. Zimmerman, Roberta R. Fulthorpe, Gabriel N. Kasozi, Brian R. Silliman, Greg F. Slater
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2013)
Article
Biology
J. A. Russell, A. L. Brady, Z. Cardman, G. F. Slater, D. S. S. Lim, J. F. Biddle
Article
Multidisciplinary Sciences
G. Holland, B. Sherwood Lollar, L. Li, G. Lacrampe-Couloume, G. F. Slater, C. J. Ballentine
Article
Environmental Sciences
Nagissa Mahmoudi, Greg F. Slater, Albert L. Juhasz
WATER AIR AND SOIL POLLUTION
(2013)
Article
Geochemistry & Geophysics
A. R. Waldeck, B. R. Cowie, E. Bertran, B. A. Wing, I. Halevy, D. T. Johnston
EARTH AND PLANETARY SCIENCE LETTERS
(2019)
Article
Microbiology
C. Magnabosco, P. H. A. Timmers, M. C. Y. Lau, G. Borgonie, B. Linage-Alvarez, O. Kuloyo, R. Alleva, T. L. Kieft, G. F. Slater, E. van Heerden, B. Sherwood Lollar, T. C. Onstott
FEMS MICROBIOLOGY ECOLOGY
(2018)