Geochemistry of rare earth elements in a passive treatment system built for acid mine drainage remediation

Prudêncio, M.I.; Valente, Teresa Maria Fernandes; Marques, Rosa; Braga, M. A. Sequeira; Pamplona, J.

doi:10.1016/j.chemosphere.2015.07.064

Cited by 56 publications

(27 citation statements)

References 49 publications

(50 reference statements)

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“…Rare earth elements (REE) were used to assess attenuation processes in a passive system for AMD treatment in Jales, Portugal (Prudncio et al, 2015).…”

Section: Treatment Optionsmentioning

confidence: 99%

Mine Drainage Generation and Control Options

Wei

Rodak

Zhang

et al. 2016

Water Environment Research

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This review provides a snapshot of papers published in 2015 relevant to the topic of mine drainage generation and control options. The review is broken into 3 sections: Generation, Prediction and Prevention, and Treatment Options. The first section, mine drainage generation, focuses on the characterization of mine drainage and the environmental impacts. As such, it is broken into three subsections focused on microbiological characterization, physiochemical characterization, and environmental impacts. The second section of the review is divided into two subsections focused on either the prediction or prevention of acid mine drainage. The final section focuses on treatment options for mine drainage and waste sludge. The third section contains subsections on passive treatment, biological treatment, physiochemical treatment, and a new subsection on beneficial uses for mine drainage and treatment wastes.

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“…Rare earth elements (REE) were used to assess attenuation processes in a passive system for AMD treatment in Jales, Portugal (Prudncio et al, 2015).…”

Section: Treatment Optionsmentioning

confidence: 99%

Mine Drainage Generation and Control Options

Wei

Rodak

Zhang

et al. 2016

Water Environment Research

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“…Previous studies on the role of mineralogical attenuation for metallic remediation in this passive system showed that Fe, As, Ba, Co, Mn and Zn are mainly controlled by iron oxides and clay minerals among other phases, and how the REE fractionation occurring along passive treatment systems can be used as tracers to follow up and understand the geochemical processes that promote the remediation of AMD [3][4][5]. In this work special attention is provided to actinides (U, Th) behaviour, and their relation with Fe and Mn distribution, in the course of the passive treatment system constructed for AMD treatment in Jales mine.…”

Section: Introductionmentioning

confidence: 97%

“…Location map of the Jales mining site, including the layout of the water treatment plant, and the indication of the sampling sites (adapted from[4]). …”

mentioning

confidence: 99%

Thorium and Uranium distribution in a passive system for mine water treatment

et al. 2019

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The abandoned Jales mining area is a sulphide-rich deposit (Northeast of Portugal). Acid mine drainage resulted from oxidation of sulphides is treated in a passive system with wetlands. The present work studies the thorium and uranium behaviour in the water and in the fine fractions of wetland soils throughout the passive treatment system. The evaluation of the efficiency of the all system was done determining metals concentration variation in the creek water upstream and downstream of the treated effluent discharge. The results point to higher efficiency to retain Th after summer than after winter. The opposite was found for uranium, which increases significantly in the creek water after summer and, in a lower extent, after winter. Also, Th and U have a tendency to increase in the fine fractions of the wetlands soils after summer, which can be explained by the longer water-soil contact/lower water dynamics. Nevertheless uranium has a much higher tendency to be in solution as revealed by a high concentration in the porewater of wetland soils. A relation of these actinides behaviour with the Fe and Mn distribution is not clear.

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“…It can be different in different kinds of soils for the speciation of the trace metals to change under same environmental conditions [33,34]. Excepting these research findings, there is work to suggest to assess the bioavailability of trace metals using the feature of rare earth elements (REE) fractionation, the variation of soil enzyme activities (IR/reduced partition index), and delayed geochemical hazard model (DGH), based respectively on the differences in ionic radius, oxidation state and bonding of the rare earth elements (REE) drive fractionation of these elements in natural systems and the closed relationship between metal release and the soil enzyme activities or mechanism of chain reaction (Hg) [35][36][37][38].…”

Section: Introductionmentioning

confidence: 99%

The Bioavailability and Evolution of Trace Metals in Environment: A Brief Review

Zhang

2016

Glob. Environ. Eng.

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As a kind of important pollutants, trace metals and the pollution have been become a concerned worldwide environmental problem. Despite the fact that the bioavailability of trace metals indicated by their speciation has been an indispensible parameter in the assessment and treatment of trace metal pollution, many studies suggest that the bioavailability of trace metals may change according to environmental conditions, and they can also transform between some speciation fractions. These transformations are related with factors such as the compositions, microorganism, time, and other physicalchemical conditions of the system. So, it is necessary to systematically understand and investigate for the factors to affect the transformation aside from analysis at certain time-place. The results of these understanding and investigations can be used for reasonably determining the allocation of financial and technical resources in natural and engineered processes with bringing about inspirations from the evolution of the speciation of the trace metals on environmental impacts.

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Geochemistry of rare earth elements in a passive treatment system built for acid mine drainage remediation

Cited by 56 publications

References 49 publications

Mine Drainage Generation and Control Options

Mine Drainage Generation and Control Options

Thorium and Uranium distribution in a passive system for mine water treatment

The Bioavailability and Evolution of Trace Metals in Environment: A Brief Review

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