Barret J,Hughes M N.The mechanism of the bacterial oxidation ofarsenopyrite-pyrite mixtures:the identification of plant controlparameters. Minerals Engineering . 1993Barret J,Hughes M N.The mechanism of the bacterial oxidation ofarsenopyrite-pyrite mixtures:the identification of plant controlparameters....
Laas P, Künnis-Beres K, Talas L, Tammert H, Kuprijanov I, Herlemann DPR, Kisand V (2022) Bacterial communities in ballast tanks of cargo vessels-shaped by salinity, treatment and the point of origin of the water but “hatch” its typical microbiome. J Environ Manage 324:116403. https...
The kinetics of bacterial ferrous oxidation by Thiobacillus ferrooxidans and Leptospirillum ferrooxidans have been determined over a range of expected operating conditions. Also the chemical ferric leach kinetics of pyrite have been measured under conditions similar to those in bioleach systems. The ...
Mineralogical information on the mechanisms by which microwave pretreatment improves the bioleaching behaviour of low-grade complex sulphide ore, and an in... PA Olubambi - 《Hydrometallurgy》 被引量: 78发表: 2009年 Relationship between bioleaching performance, bacterial community structure and mineralogy...
The predominant mechanism of dissolution of metals from coal wastes under aerobic conditions is due to bacterial oxidation of pyrite; under anaerobic conditions it is due to bacterial reduction of iron and manganese oxides and the release of trace metals coprecipitated with the oxides. 展开 ...
(globules) on a substrate of pitted NaCl with minor presence of Fe-rich filaments (B); site P2: X-ray map of Mn-rich bacterial cells (light yellow) within Fe-rich stalked bacterial cells (blue), partly twisted (C); and site T: Fibrous Fe-rich stalks and smaller, round bacterial ...
The results showed that the OC-free ME-ISs-AD obtained denitrification load of 0.191 ± 0.028 kgN/(m3·d), which shifted to 0.445 ± 0.011 kgN/(m3·d) at OC-dosage of 1.0 mgCOD/mgTN. N2O (1.52 ± 0.16 mgN/L) and NO2− (6.86 ± 1.11 mgN/L) accumulated markedly in Fe(0)-...
The ferric iron, in turn, acts as the prime oxidant of pyrite and is reduced to ferrous iron. The re-oxidation of the dissolved ferrous component which is catalyzed by bacterial activity, completes the cyclic process. The rate of bacterial oxidation is affected by: the geochemistry and ...
In the past few years, this emerging catalytic therapy strategy has greatly promoted the progress of many nanomedicine fields, providing effective treatment effects for various pathological abnormalities, including cancer, bacterial infections, inflammation to brain injury and other diseases [39,40,41,42...
Reservoir souring processes are classified into two major groups of biotic and abiotic mechanisms with bacterial sulfate reduction (BSR) as the only known one within the former group, and thermochemical sulfate reduction (TSR), thermal decomposition of organic sulfur compounds and pyrite dissolution and...