Trace element transformations and partitioning during the roasting of pyrite ores in the sulfuric acid industry

Yang, Chenghu; Chen, Yongheng; Peng, Ping’an; Li, Chao; Chang, Xiangyang; Wu, Yali

doi:10.1016/j.jhazmat.2009.01.067

Cited by 69 publications

(32 citation statements)

References 44 publications

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“…2). Given all the preceding considerations and the existing literature about pyrite ashes (Lin and Qvarfort, 1996;Yang et al, 2009;Oliveira et al, 2012), we addressed the behaviour of this sort of waste.…”

Section: Pyrite Ash Characterisationmentioning

confidence: 99%

Insights into a 20-ha multi-contaminated brownfield megasite: An environmental forensics approach

Gallego¹,

Rodríguez-Valdés²,

Esquinas³

et al. 2016

Science of The Total Environment

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Section: Pyrite Ash Characterisationmentioning

confidence: 99%

Insights into a 20-ha multi-contaminated brownfield megasite: An environmental forensics approach

Gallego¹,

Rodríguez-Valdés²,

Esquinas³

et al. 2016

Science of The Total Environment

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“…The hematite-rich waste, known as roasted pyrite ash, or pyrite ash, is left as residue after the following processes in the production of sulphuric acid: roasting for the pyrite concentrate; cooling of the gases in the pot, and purifying with dry electronic purifiers and cyclones [2]. This waste could be used in the environmentally safe manner, as an iron ore in the steel, brick, paint, and cement industries [3].…”

Section: Introductionmentioning

confidence: 99%

Degradation of Anthraquinone Dye Reactive Blue 4 in Pyrite Ash Catalyzed Fenton Reaction

Bečelić‐Tomin

Dalmacija

Rajić

et al. 2014

The Scientific World Journal

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Pyrite ash (PA) is created by burning pyrite in the chemical production of sulphuric acid. The high concentration of iron oxide, mostly hematite, present in pyrite ash, gives the basis for its application as a source of catalytic iron in a modified Fenton process for anthraquinone dye reactive blue 4 (RB4) degradation. The effect of various operating variables such as catalyst and oxidant concentration, initial pH and RB4 concentration on the abatement of total organic carbon, and dye has been assessed in this study. Here we show that degradation of RB4 in the modified Fenton reaction was efficient under the following conditions: pH = 2.5; [PA]0 = 0.2 g L−1; [H2O2]0 = 5 mM and initial RB4 concentration up to 100 mg L−1. The pyrite ash Fenton reaction can overcome limitations observed from the classic Fenton reaction, such as the early termination of the Fenton reaction. Metal (Pb, Zn, and Cu) content of the solution after the process suggests that an additional treatment step is necessary to remove the remaining metals from the water. These results provide basic knowledge to better understand the modified, heterogeneous Fenton process and apply the PA Fenton reaction for the treatment of wastewaters which contains anthraquinone dyes.

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“…Therefore, Tl can be thought as one of the most dangerous elements for the environment. Predominant anthropogenic sources of Tl include emissions or solid wastes from coal combustion and ferrous and non-ferrous mining/smelting activities [3][4][5]. Moreover, there has been evidence of Tl contamination as a consequence of cement production [6].…”

Section: Introductionmentioning

confidence: 99%

Thallium uptake by white mustard (Sinapis alba L.) grown on moderately contaminated soils—Agro-environmental implications

Vaněk

Komárek

Chrastný

et al. 2010

Journal of Hazardous Materials

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Trace element transformations and partitioning during the roasting of pyrite ores in the sulfuric acid industry

Cited by 69 publications

References 44 publications

Insights into a 20-ha multi-contaminated brownfield megasite: An environmental forensics approach

Insights into a 20-ha multi-contaminated brownfield megasite: An environmental forensics approach

Degradation of Anthraquinone Dye Reactive Blue 4 in Pyrite Ash Catalyzed Fenton Reaction

Thallium uptake by white mustard (Sinapis alba L.) grown on moderately contaminated soils—Agro-environmental implications

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