Secondary Sulfate Minerals from Pyrite Oxidation in Lanmuchang Hg-Tl Deposit, Southwest Guizhou Province, China: Geochemistry and Environmental Significance
Sign Up to like & getrecommendations! Published in 2021 at "Bulletin of Environmental Contamination and Toxicology"
DOI: 10.1007/s00128-021-03358-6
Abstract: Thallium (Tl) is a highly toxic trace metal posing a significant threat to human health. Tl pollution in soils and chronic Tl poisoning related to Tl-rich sulfides weathering in the Lanmuchang mine of southwest Guizhou… read more here.
Keywords: geochemistry; southwest guizhou; sulfate minerals; pyrite oxidation ... See more keywords
The effect of temperature on the kinetics of the ferric-ferrous redox couple on pyrite
Sign Up to like & getrecommendations! Published in 2017 at "Electrochimica Acta"
DOI: 10.1016/j.electacta.2017.05.198
Abstract: Abstract This article presents two methods for the study of ferric-ferrous reaction kinetics on the surface of an electro-active electrode. The working electrode in this study was a high quality bulk pyrite mineral, and the… read more here.
Keywords: temperature; pyrite oxidation; solution; reaction ... See more keywords
Mechanisms of hydroxyl radicals production from pyrite oxidation by hydrogen peroxide: Surface versus aqueous reactions
Sign Up to like & getrecommendations! Published in 2018 at "Geochimica et Cosmochimica Acta"
DOI: 10.1016/j.gca.2018.07.018
Abstract: Abstract Pyrite oxidation by hydrogen peroxide (H2O2) occurs in both natural and engineered systems. Hydroxyl radical ( OH) is a key reactive intermediate for pyrite and coexisting substances oxidation. In acidic H2O2/pyrite systems, H2O2 decomposition… read more here.
Keywords: aqueous fe2; production; pyrite oxidation; surface ... See more keywords
Investigation of intermediate sulfur species during pyrite oxidation in the presence and absence of Acidithiobacillus ferrooxidans
Sign Up to like & getrecommendations! Published in 2017 at "Hydrometallurgy"
DOI: 10.1016/j.hydromet.2016.11.001
Abstract: Abstract The intermediate sulfur species of pyrite chemical and biological oxidation have been the subject of controversy for some time, especially the question of whether or not elemental sulfur (S 0 ) and polythionates (S… read more here.
Keywords: oxidation; presence; pyrite oxidation; sulfur species ... See more keywords
Redox Behavior of Secondary Solid Iron Species and the Corresponding Effects on Hydroxyl Radical Generation during the Pyrite Oxidation Process.
Sign Up to like & getrecommendations! Published in 2022 at "Environmental science & technology"
DOI: 10.1021/acs.est.2c04624
Abstract: During the pyrite oxidation process, aqueous ferrous/ferric ions (Fe2+/Fe3+), as well as surface-adsorbed Fe2+/Fe3+, have been widely recognized to dominate hydroxyl radical (•OH) generation, while this study reveals that the secondary solid iron species also… read more here.
Keywords: oxidation; pyrite oxidation; iron; oxidation process ... See more keywords
Impact of Pyrite Oxidation on the Pore-Structure Characteristics of Shale Reservoir Rocks under the Interaction of Fracturing Fluid
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.2c02690
Abstract: Hydraulic fracturing combined with horizontal drilling is widely used to develop shale gas resources, and huge amounts of fracturing fluid are injected into shale reservoirs. However, the fracturing fluid is ineluctably retained in reservoir rocks… read more here.
Keywords: fracturing fluid; pore; pore structure; pyrite oxidation ... See more keywords