Results 41 to 50 of about 1,776 (188)
Biosorption technology for removal of metallic pollutants-An overview [PDF]
, 2010 The main sources of metallic pollutants to the environment are the diffuse sources such as forests and agricultural soils as well as industrial and municipal wastes, which are either discharged directly or transported in to the environment.
Chopra, A.K., Pathak, Chakresh
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Interrelationship of hydrology, microbial colonisation and hydrometallurgy in a simulated chalcopyrite heap leach [PDF]
, 2008 Includes bibliographical references (leaves 104-115).Chalcopyrite is the most abundant primary copper sulphide mineral found worldwide. As copper grades of ores available for extraction decrease, heap bioleaching is gaining interest as a potential ...
Spurr, Nicholas Robert Louis
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Copper leaching from waste electric cables by biohydrometallurgy [PDF]
Minerals Engineering, 2015 Abstract This study examines the leaching of copper from waste electric cables by chemical leaching and leaching catalysed by Acidithiobacillus ferrooxidans in terms of leaching kinetics and reagents consumption. Operational parameters such as the nature of the oxidant (Fe 3+ , O 2 ), the initial ferric iron concentration (0–10 g/L) and the ...
Fanny Lambert +5 more
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International Journal of Electrochemical Science, 2013 In this work, a comparative study on the electrochemical behavior of massive chalcopyrite electrode in different leaching mediums was carried out to investigate the different interface reactions.
Jun Wang +4 more
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Metals, 2021 Electronic e-waste (e-waste) is a growing problem worldwide. In 2019, total global production reached 53.6 million tons, and is estimated to increase to 74.7 million tons by 2030.
Jonovan Van Yken +5 more
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Biomass-supported catalysts on Desulfovibrio desulfuricans and Rhodobacter sphaeroides [PDF]
, 2008 A Rhodobacter sphaeroides-supported dried, ground palladium catalyst (‘‘Rs-Pd(0)’’) was compared with a Desulfovibrio desulfuricans-supported catalyst (‘‘Dd-Pd(0)’’)and with unsupported palladium metal particles made by reduction under H2 (‘‘Chem-Pd(0)’’)
Baxter-Plant, VS +3 more
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工程科学学报, 2017 To study the effect of carbonaceous matter on gold recovery in bio-pretreatment followed by a cyanide leaching process, the carbonaceous matter was characterized in high-sulfur Carlin-type gold flotation concentrate by gas chromatography-mass ...
QIU Xiao-bin +5 more
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Column leaching of ion adsorption rare earth ore at low ammonium concentration
Journal of Materials Research and Technology, 2022 Ammonium sulfate ((NH4)2SO4) is currently the most commonly used leaching agent for the extraction of ion adsorption rare earth ore (IARE-ore) in industrial production.
Qiyuan Shi +9 more
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Biosorption: a solution to pollution? [PDF]
, 2010 To solve the water pollution problem by toxic heavy metal contamination resulting from humans technological activities has for long presented a challenge. Biosorption can be a part of the solution.
Boya Volesky, Regine H. S. F. Vieira
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Iron leaching from China clay with oxalic acid: effect of different physico-chemical parameters [PDF]
, 2004 China clay is an important mineral, which is used in the manufacture of ceramics and refractory, as also in other industries. Mined China clay contains iron oxides and silicates as impurity; if present in excess of a threshold level, the impurities ...
Banerjee, Pataki C, Mandal, S K
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