Water, sediment and agricultural soil contamination from an ion-adsorption rare earth mining area

Liu, Wen-Shen; Guo, Min; Liu, Chang; Yuan, Ming; Chen, Xintian; Huot, Hermine; Zhao, Cheng; Tang, Yetao; Morel, Jean-Louis; Qiu, Rongliang

doi:10.1016/j.chemosphere.2018.10.109

Cited by 142 publications

(67 citation statements)

References 26 publications

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“…Based on the fact that the REE content in the stream water nearby mineral areas was close to 20 mg L −1 [6], and considering that the REE environmental release might intensify due to the potential centralized massive production, the potential impacts of higher concentrations (50 mg L −1 ) were also explored in this study. Thus 0, 5, 10, 20 and 50 mg L −1 La (III) were set to study the effects on anammox sludge.…”

Section: Reactor Setup and Operationmentioning

confidence: 99%

“…The Chinese National Standard for Groundwater Quality (III grade) for NH 4 + and NO 3 − limits by comparison are only 0.50 and 20.00 mg L −1 , respectively [5]. The enrichment of NH 4 + and NO 3 − poses a remarkable threat to the integrity of surrounding ecosystems and the safety of water resources [6]. Therefore, it is urgent to alleviate the water nitrogen pollution faced by rare earth mining areas.…”

Section: Introductionmentioning

confidence: 99%

“…"REEs are not rare." In fact, the REEs have become the dominant metallic pollutant in the waters in proximity to many REEs mining areas [6]. Reportedly, the contents of REEs in streams close to REEs mines were even above 20 mg L −1 due to a poor recovery rate of REEs from leachate [2,12].…”

Section: Introductionmentioning

confidence: 99%

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Responses of Anammox Granular Sludge to Long-Term Rare Earth Element Feeding: Lanthanum as a Case

Huang

2020

Sustainability

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A tremendous input of ammonium and rare earth elements (REEs) has entered the surroundings on account of the discharge and leak of leaching agents during rare earth in-suit leaching mining, which has threatened various organisms. Anammox has the potential to release nitrogen contamination, but the potential impacts of REEs on anammox bacteria remain unclear. In this study, La (III) was chosen as a case to explore the long-term impacts on anammox granular sludge. The 5 mg L−1 La (III) which was examined hardly affected the anammox granulates because of the defense of extracellular polymeric substances. The high La concentrations (10–50 mg L−1) caused intercellular accumulation and the significant inhibition of nitrogen removal performance and dehydrogenase activity, especially a decrease in the relative abundance of Ca. Kuenenia. Moreover, it also induced patently oxidative damage and affected cell membrane integrity. Notably, extracellular polymeric substances have a limited defense capability; neither La3+ nor Ca2+/Mg2+ efflux-related genes aggravated the intracellular accumulation of La.

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Section: Reactor Setup and Operationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Responses of Anammox Granular Sludge to Long-Term Rare Earth Element Feeding: Lanthanum as a Case

Huang

2020

Sustainability

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“…REEs are essential for the industry, agriculture, and modern living. However, the increasing storage of REEs in soils has caused adverse impacts on the environment (Liu et al, 2019;Omodara et al, 2019) and human health (Bai et al, 2019;Pagano et al, 2019), especially in agricultural regions (Ramos et al, 2016;Silva et al, 2019;Jin et al, 2019). Knowledge on the background concentration and quality reference values (QRVs) is fundamental to manage soils properly, preventing risks to humans and environment (Nogueira et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Quality reference values for rare earth elements in soils from one of the last agricultural frontiers in Brazil

Silva

Oliveira

Silva

et al. 2021

Sci. agric. (Piracicaba, Braz.)

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Environmental impacts caused by the addition of rare earth elements (REEs) to agricultural soils are a growing concern. The sedimentary basin of the Gurguéia River is located in one of the last agricultural frontiers in Brazil; nevertheless, data regarding quality reference values (QRVs) for REEs in soils are still scarce. The objective of this study was therefore to determine the natural concentration and establish the QRVs of REEs in soils of Gurguéia watershed, Brazil. Fifty-five composite soil samples were collected at sites under no or minimal anthropic interference. The average REE natural concentrations in soils from the Gurguéia watershed were lower than those found in other regions of Brazil and worldwide, following the order (mg kg -1 ): Ce (14.01) > Nd (6.19) > La (5.52) > Pr (2.51) > Sm (1.45) > Gd (0.93) > Dy (0.63) > Er (0.42) > Yb (0.39) > Tb (0.28) > Eu (0.26) > Lu (0.20). The parent material was the main factor that controlled the distribution of REEs in soils. The QRVs in soils followed the order (mg kg -1 ): Ce (18.8) > Nd (7.92) > La (6.32) > Pr (3.3) > Sm (1.97) > Gd (1.35) > Dy (0.85) > Er (0.55) > Yb (0.47) > Tb (0.37) > Lu (0.25). These values serve as a basis to assist the development of legislation, including REE thresholds for Brazilian soils.

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“…The impacts on soil properties can persist in time and, in some cases, can be detected 20 years after mine closure (Sołek-Podwika et al, 2016). Mining activities involve vegetation removal and increase the water erosion (Karan et al, 2019) and wind erosion (Pietron et al, 2017) in the exploited areas, and the contamination of soils and water resources in the nearby regions (Pandey et al, 2016;Chakraborty et al, 2017;Liu et al, 2019). High levels of toxic elements were observed in soils and vegetables planted in the vicinity of mining areas, increasing the residents and the end consumers' health risk (Bui et al, 2016;Antoniadis et al, 2017).…”

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confidence: 99%

Soil and water threats in a changing environment

Pereira

Barceló

Panagos

2020

Environmental Research

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Background A fast pacing climate change exacerbates the multitude of human impacts. Several reports highlighted (e.g., Magurran, 2016; Lewis et al. 2017; Diffenbaugh et al., 2018) that the degree of impact imposed by human activities on all the ecosystem components are unprecedented. We entered a new era, the Anthropocene (Malhi, 2017; Laurence, 2019). In this new area, soil and water resources are exposed to tremendous pressure, and our life depends on it. Soils and water environments (e.g., freshwater, coastal and marine) provide a wide range of direct and indirect regulating (e.g., carbon sequestration, climate regulation, water purification and storage, flood retention), provisioning (e.g., food, fiber, wood), and cultural (e.g., education, recreation aesthetic) ecosystem services (ES). Therefore, both soils and water are the key elements to humankind (Barbier, 2017; Pereira et al., 2018; Jorda-Capdevila et al., 2019). Soils interact in a continuum through very complex processes and feedbacks. The agriculture practices have implications on land degradation, water bodies eutrophication and pollution, coastal floods and soil salinization. Here, we present numerous studies focusing on how land abandonment (Tarolli et al., 2019), urbanization (Ferreira et al., 2018), agriculture intensification (Panagos et al., 2016), mining (Zibret et al., 2018), warfare activities in relation to land degradation (Certini et al., 2013) and climate change (Plaza et al., 2019) are accelerating soil and water resources degradation, and reducing their capacity to provide ES in quality and quantity. These drivers of change either interact individually or coupled at different spatio-temporal scales. Land abandonment Land abandonment is an environmental, socioeconomic , and political process, which changes the rural landscapes in a radical way and affects both developing and developed countries a (Li and Li, 2017). Land abandonment became more evident since the 1950s and can be attributed to industrialisation, harsh conditions for agriculture practices, remoteness, depopulation, and non-favorable economic conditions in rural areas (Perpina-Castillo et al., 2018). Depending on local factors, agro-climatic conditions, or conservation status, land abandonment can be considered positive (e.g., increase soil fertility, carbon sequestration), negative (e.g., increase soil erosion and wildfire risk) or variable (e.g., biodiversity) (Ustaoglu and Collier, 2018). Globally, it is estimated that between 1700 and 1992, 1.47 million km has been abandoned (Ramankutty and Foley, 1999). In Europe, several areas have been abandoned (Renwick et al., 2013). Feranec et al. (2010) found that between 1990 and 2000 (25 European countries) that approximately 88,000 km 2 has been abandoned. Literature findings report the

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Water, sediment and agricultural soil contamination from an ion-adsorption rare earth mining area

Cited by 142 publications

References 26 publications

Responses of Anammox Granular Sludge to Long-Term Rare Earth Element Feeding: Lanthanum as a Case

Responses of Anammox Granular Sludge to Long-Term Rare Earth Element Feeding: Lanthanum as a Case

Quality reference values for rare earth elements in soils from one of the last agricultural frontiers in Brazil

Soil and water threats in a changing environment

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