Article
Environmental Sciences
Xiaolin Ou, Zhibiao Chen, Bengen Hong, Haiyan Wang, Liujun Feng, Youcun Liu, Mingyong Zhu, Zuliang Chen
Summary: The distribution and transport of ammonium nitrogen (NH4+-N) and nitrate nitrogen (NO3 �-N) in ion-absorption rare earth tailings remains unclear. This study conducted soil column leaching experiments to assess the transport and distribution of NH4+-N and NO3 �-N after mine closure. The results showed that NH4+-N concentration decreased with time, while NH4+-N and NO3 �-N content varied greatly with depth. NH4+-N caused soil acidification, and NO3 �-N derived from NH4+-N posed a long-lasting threat to the environment.
ENVIRONMENTAL RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Franca Tommasi, Philippe J. Thomas, Daniel M. Lyons, Giovanni Pagano, Rahime Oral, Antonietta Siciliano, Maria Toscanesi, Marco Guida, Marco Trifuoggi
Summary: Rare earth elements (REEs) are emerging contaminants that have implications in human and environmental health. Besides their adverse effects, REEs can also have positive effects when used in fertilizers and livestock feed additives. Therefore, it is important to study the effects of individual REEs and mixtures on crops and livestock in order to optimize fertilizer and feed additive preparation for increased agricultural and livestock productivity.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2022)
Article
Metallurgy & Metallurgical Engineering
N. P. Dushyantha, N. P. Ratnayake, H. M. R. Premasiri, I. M. S. K. Ilankoon, P. V. A. Hemalal, C. L. Jayawardena, Rohana Chandrajith, L. P. S. Rohitha, A. M. K. B. Abeysinghe, D. M. D. O. K. Dissanayake, P. G. R. Dharmaratne, A. S. Ratnayake, N. M. Batapola
Summary: The study investigates the potential of lake sediments around the Eppawala Phosphate Deposit in Sri Lanka as a secondary source of rare earth elements (REEs). Experimental results reveal three fractions of REEs in lake sediments and identify the optimal leaching conditions for ion-adsorbed fraction. Acid leaching is proven to be the most effective leaching process for extracting REEs from the sediments, providing valuable insights for assessing low-grade geological resources in similar geological settings.
Article
Polymer Science
William R. Archer, Tiffany N. Thompson, Michael D. Schulz
Summary: Research shows that alterations in the copolymer structure do not affect the overall binding thermodynamics of REEs to these copolymers.
MACROMOLECULAR RAPID COMMUNICATIONS
(2021)
Article
Environmental Sciences
Zhongmin Lian, Yixuan Han, Xumao Zhao, Yinglan Xue, Xiang Gu
Summary: This study comprehensively investigated the spatial distribution and risk assessments of REEs in upland soils of northern China. The study found a decreasing trend of REEs from northwest to northeast and common enrichment of LREEs in northern China. Ecological risk assessments indicated relatively low risks from REEs, but higher health risks for children. Continuous monitoring of REE abundance in soils is essential to prevent potential health risks.
Article
Engineering, Chemical
Dominik Boehm, Konrad Czerski, Stephan Gottlieb, Armin Huke, Goetz Ruprecht
Summary: This article presents a sustainable separation concept for large-scale recycling of NdFeB magnets. It combines two separation concepts from the literature: selective pre-separation by in situ chlorination and evaporation, and subsequent distillation for high-purity recovery of recyclable material components, including Rare Earth Elements (REEs).
Article
Toxicology
Malek Jomaa, Guillaume Pelletier, Denis Dieme, Jonathan Cote, Hamadi Fetoui, Andy Nong, Michele Bouchard
Summary: This study showed that dose and mixture exposure are two important factors that affect the toxicokinetics of rare earth elements (REEs). The half-lives of praseodymium (Pr) and cerium (Ce) in blood increased with increasing doses, while the cumulative excretion in urine was not significantly affected by the dose. The fraction of Pr dose recovered in feces was significantly lower at the higher dose, while the dose effect on Ce was not significant. Dose had a significant effect on the retention of Ce in the spleen, but not on Pr.
ARCHIVES OF TOXICOLOGY
(2023)
Article
Endocrinology & Metabolism
Xiangrong Xu, Yuanyuan Wang, Na Han, Xiangming Yang, Yuelong Ji, Jue Liu, Chuyao Jin, Lizi Lin, Shuang Zhou, Shusheng Luo, Heling Bao, Zheng Liu, Bin Wang, Lailai Yan, Hai-Jun Wang, Xu Ma
Summary: The study found that early pregnancy exposure to lower levels of REE mixture was associated with an increased risk of GDM, with Neodymium (Nd), Praseodymium (Pr), and Lanthanum (La) being the most important contributors in the mixture.
FRONTIERS IN ENDOCRINOLOGY
(2021)
Article
Toxicology
Malek Jomaa, Denis Dieme, Mathieu Desrosiers, Jonathan Cote, Hamadi Fetoui, Guillaume Pelletier, Andy Nong, Michele Bouchard
Summary: The study found that the administered dose significantly impacts the toxicokinetics of rare earth elements, with higher doses leading to lower excretion in urine and feces. Additionally, toxicokinetic parameters showed significant increases at the highest dose, reflecting a potential shift in kinetics due to higher retention in lysosomes.
TOXICOLOGY LETTERS
(2021)
Article
Toxicology
Malek Jomaa, Guillaume Pelletier, Denis Dieme, Jonathan Cote, Hamadi Fetoui, Andy Nong, Michele Bouchard
Summary: We conducted a study on rats to assess the effects of dose and co-exposure with other rare earth elements (REEs) on the toxicokinetics of praseodymium (Pr) and cerium (Ce). The study showed that dose and mixture exposure are important factors determining the toxicokinetics of REEs.
ARCHIVES OF TOXICOLOGY
(2023)
Article
Environmental Sciences
Yuanyuan Wang, Gaofeng Wang, Mingqi Sun, Xiaoliang Liang, Hongping He, Jianxi Zhu, Yoshio Takahashi
Summary: This study investigated the environmental risk of ion-adsorption type rare earth elements (REEs) in Guangzhou and found a potential Chemical Time Bomb (CTB) risk. The concentrations of ion-exchangeable REEs in regolith and sediment were higher than background values, and migration of REEs to surface water, rhizosphere soil, and vegetables was observed, posing a health risk. Human activities may contribute to the CTB risk.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Chemistry, Analytical
Jianyin Huang, Jodie Hills, Peter R. Teasdale, Jared G. Panther, Feiyue Wang, David T. Welsh
Summary: The study validated a DGT technique for determining lanthanide rare earth elements (REEs) in sediment pore waters, showing high sensitivity and reliability for measuring REE concentrations.
Article
Environmental Sciences
Xiaohong Fang, Bo Peng, Xintong Guo, Sicheng Wu, Shurong Xie, Jing Wu, Xia Yang, Haisheng Chen, Yanan Dai
Summary: The concentrations of REEs and major elements, as well as the mineralogical compositions of sediments from the lower reaches of China's Xiangjiang River were analyzed. The sediments showed high concentrations of REEs, primarily hosted in Fe-Mn oxides and sulfides. The distribution and enrichment of REEs in sediments were controlled by various factors such as clays, Fe-Mn oxides, organic matters, and accessory minerals. The study recommended specific levels of REE contamination as indices for identifying and rating REE contamination in this mining impacted river.
ENVIRONMENTAL POLLUTION
(2023)
Article
Energy & Fuels
Huiru Yang, Xiangze Du, Linyuan Zhou, Dan Li, Changwei Hu
Summary: In this study, the deoxygenation ability and coke resistance of Ni-based catalysts towards jatropha oil conversion were regulated by adding three kinds of rare earth elements (Ce, Er, and Y). Among them, the catalysts with lanthanide metals (Ce and Er) exhibited positive effects, while the addition of Y was counterproductive. The catalyst with Er added showed the best catalytic performance, achieving the highest deoxygenation ratio, product yield, and calorific value.
Article
Engineering, Environmental
Muhammad Adeel, Noman Shakoor, Tariq Hussain, Imran Azeem, Pingfan Zhou, Peng Zhang, Yi Hao, Jorg Rinklebe, Yukui Rui
Summary: This study investigated the detoxification potential of La2O3 and Yb2O3 on earthworm E. fetida and their impact on biochemical and genetic markers. Results showed that these rare earth elements induced neurotoxicity, reproductive effects, and changes in cell and tissue structures in earthworms at different concentrations.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Cheng-Hua Liu, Ya-Hui Chuang, Tsan-Yao Chen, Yuan Tian, Hui Li, Ming-Kuang Wang, Wei Zhang
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2015)
Article
Soil Science
Yuan Tian, Cheng-Hua Liu, Alvin J. M. Smucker, Hui Li, Wei Zhang
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL
(2015)
Article
Engineering, Environmental
Yuan Tian, Bin Gao, Veronica L. Morales, Lei Wu, Yu Wang, Rafael Munoz-Carpena, Can Cao, Qingguo Huang, Liuyan Yang
CHEMICAL ENGINEERING JOURNAL
(2012)
Article
Environmental Sciences
Yuan Tian, Bin Gao, Veronica L. Morales, Hao Chen, Yu Wang, Hui Li
Article
Environmental Sciences
Cheng-Run Wang, Qin-Ying Wang, Yuan Tian, Ji-Feng Zhang, Zhi-Xiao Li, Peng Cao, Mei Zhu, Ting-Ting Li
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
(2014)
Article
Engineering, Environmental
Lei Wu, Bin Gao, Yuan Tian, Rafael Munoz-Carpena
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
(2014)
Article
Engineering, Environmental
Yuan Tian, Bin Gao, Hao Chen, Yu Wang, Hui Li
JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART A-TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING
(2013)
Article
Environmental Sciences
Chengrun Wang, Kegui Zhang, Mei He, Chuanjun Jiang, Liumin Tian, Yuan Tian, Xiaorong Wang
JOURNAL OF ENVIRONMENTAL SCIENCES
(2012)
Article
Engineering, Environmental
Yuan Tian, Bin Gao, Yu Wang, Veronica L. Morales, Rafael Munoz Carpena, Qingguo Huang, Liuyan Yang
JOURNAL OF HAZARDOUS MATERIALS
(2012)
Article
Engineering, Environmental
Yuan Tian, Bin Gao, Veronica L. Morales, Yu Wang, Lei Wu
JOURNAL OF HAZARDOUS MATERIALS
(2012)
Article
Engineering, Environmental
Yuan Tian, Bin Gao, Lei Wu, Rafael Munoz-Carpena, Qingguo Huang
JOURNAL OF HAZARDOUS MATERIALS
(2012)
Article
Engineering, Environmental
Chengrun Wang, Haitao Liu, Jinyun Chen, Yuan Tian, Jian Shi, Dongdong Li, Chen Guo, Qingping Ma
JOURNAL OF HAZARDOUS MATERIALS
(2014)
Article
Chemistry, Multidisciplinary
Yu Wang, Bin Gao, Veronica L. Morales, Yuan Tian, Lei Wu, Jie Gao, Wei Bai, Liuyan Yang
JOURNAL OF NANOPARTICLE RESEARCH
(2012)
Article
Chemistry, Multidisciplinary
Lei Wu, Bin Gao, Yuan Tian, Rafael Munoz-Carpena, Kirk J. Zigler