Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Stoyan Groudev"'
Publikováno v:
Sustainable Extraction and Processing of Raw Materials Journal, Vol 4, Iss 4, Pp 37-42 (2023)
Laden leach solution, generated from bioleaching of pyrometallurgical copper slags with a mixed culture of moderately thermophilic bacteria in a bioreactor, contains several base metals (Cu, Co, Zn) and a very high concentration of iron (33,9 g/ L).
Externí odkaz:
https://doaj.org/article/7f9b2c8d50514ad696e2a2e9b6583d76
Publikováno v:
Sustainable Extraction and Processing of Raw Materials Journal, Vol 3, Iss 3, Pp 39-44 (2022)
ABSTRACT. The study aimed to determine the effect of the acid mine drainages` flow rate on the iron adsorption by ion-exchange resin LEWATIT MonoPlus TP 207 in a fixed-bed column and to evaluate which widely used models describe that process better.
Externí odkaz:
https://doaj.org/article/d711e18944d8480097cb60788b9bfa25
Publikováno v:
Sustainable Extraction and Processing of Raw Materials Journal, Vol 2, Iss 2, Pp 36-41 (2021)
ABSTRACT. The study aimed to determine the optimal conditions for adsorption and elution of iron from acid mine drainage by ion–exchange resin LEWATIT MonoPlus TP 207 under a batch regime of operation. Langmuir’s sorption equation was employed to
Externí odkaz:
https://doaj.org/article/03c134682b2a47e198eb74e3406b025d
Publikováno v:
Sustainable Extraction and Processing of Raw Materials Journal, Vol 1, Iss 1, Pp 31-36 (2020)
ABSTRACT. Iron is usually present in higher concentrations in the laden solutions and its removal and elimination to a stable phase is a severe problem in hydrometallurgy. This article analyses and compares the processes of solvent extraction and ion
Externí odkaz:
https://doaj.org/article/51695c6dd17e45d6901c5f79923b4ae5
Publikováno v:
Groundwater 2000 ISBN: 9781003078593
Groundwater 2000
Groundwater 2000
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f84bf4138c6ce68858f34355e5ff08a1
https://doi.org/10.1201/9781003078593-206
https://doi.org/10.1201/9781003078593-206
Publikováno v:
Journal of Geochemical Exploration. 182:242-246
Samples of a leached cinnamonic forest soil heavily polluted with uranium and some toxic heavy metals (mainly copper, zinc and cadmium) were subjected to cleaning by means of bioleaching with acidophilic chemolithotrophic bacteria. The leaching of th
Publikováno v:
Solid State Phenomena. 262:189-192
A sulphide concentrate containing 31.4% total sulphur (in which 30.7% was sulphidic), 31.8% iron, 8.0% arsenic, 18.5 g/t gold and 32.9 g/t silver finely disseminated in pyrite and arsenopyrite as the most essential components was subjected to microbi
Autor:
Plamen Georgiev, Ralitca Ilieva, M. Iliev, Stoyan Groudev, Albena Lazarova, Marina Nicolova, Veneta Groudeva, Irena Spasova
Publikováno v:
Solid State Phenomena. 262:696-699
Pyrometallurgical copper final slag was subjected to leaching by means microbial cultures of three different groups based on their optimum temperature for growth and activity: mesophilic and moderate thermophilic bacteria, and extreme thermophilic ar