Jack beans and vetiver grass growth on iron ore tailing sediments from the Doce River dam disaster in Brazil: plant growth regulator effects under different edaphic conditions

Santana, Pedro Henrique Lopes; Burak, Diego Lang; Thiengo, Cássio Carlette; Peçanha, Anderson Lopes; Neves, Mirna Aparecida; Mendonça, Eduardo de Sá

doi:10.1007/s11368-020-02774-1

Cited by 5 publications

(2 citation statements)

References 17 publications

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“…In this case, largescale harmless utilization of IOTs has attracted much attention. Currently, IOTs are mainly used for IOTs recleaning (Wang et al, 2018;Zhai et al, 2020) and mine filling (Onitiri and Akinlabi, 2017;Qiu et al, 2017;Coura et al, 2021), or used as the building material (Menders et al, 2019;Li et al, 2020;Zhang et al, 2022) and soil conditioner (Santana et al, 2020;Castro e Silva et al, 2021;Cui et al, 2021). IOTs are rich in SiO 2 and Al 2 O 3 whose chemical composition is similar to that of cement (Han et al, 2017) and the physical properties are similar to those of natural sands (Huang et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Basic characteristics and environmental impact of iron ore tailings

Wang

Jing

et al. 2023

Front. Earth Sci.

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Introduction: In our study, various test methods were adopted to explore the mineralogical characteristics, grindability, particle morphology, particle size distribution, and environmental leaching toxicity of iron ore tailings (lOTs).Methods: The methods include petrographic analysis, X-ray diffraction (XRD), scanning electronic microscopy (SEM), synchronous thermal analyzer (DSC-TGA), electron probe X-ray microanalyser (EPMA), and synthetic precipitation leaching Procedure (SPLP).Results: The results show that the used IOTs contained 14.54% iron which was mainly stored in magnetite and pyrite. The content of iron silicate accounted for 11.82% of the total iron content. Most of it existed in silicate minerals, including grunerite and hornblende. A small amount of iron was contained in biotite, chlorite and augite. Besides, the grindability of lOTs was much better than that of granulated blast furnace slag (GBFS). After grinding for 140 min, the mass fraction of lOTs particles with the particle size less than 5 um was 44.19%. These particles could be used to fill in the voids in the cement-powder-packed structure. lOTs also contained a large number of submicron and nanoscale particles.Discussion: With great strength and environmental friendliness, the composite cementitious material (CCM) prepared from lOTs can be well applied to the building material field and environmental remediation.

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Section: Introductionmentioning

confidence: 99%

Basic characteristics and environmental impact of iron ore tailings

Wang

Jing

et al. 2023

Front. Earth Sci.

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“…Besides the initial and acute social and environmental impacts to multiple ecosystems, the mine tailings caused long term damage to aquatic organisms and offer a great ecological risk to human communities through soil and water pollution Cionek et al, 2019; . Since then, several efforts have been made by research groups, government agencies, environmentalists to reach solutions to the damages caused (Ferreira et al, 2021;Santana et al, 2020;Santos et al, 2019).…”

Section: Discussionmentioning

confidence: 99%