Zobrazeno 1 - 10
of 233
pro vyhledávání: '"Plamen Georgiev"'
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
Autor:
Ivelina Moteva, Plamen Georgiev
Publikováno v:
Sustainable Extraction and Processing of Raw Materials Journal, Vol 1, Iss 1, Pp 68-73 (2020)
ABSTRACT. The main aim of this study was to assess the effects of ferrous iron oxidation, hydrolysis and precipitation of the ferric iron on the mechanisms of arsenate removal from acid mine drainage. The study was realized at the pH range 2,0 – 6,
Externí odkaz:
https://doaj.org/article/7704cec08adc4eafb3604ec5f7d1336a
Autor:
Neli Jordanova, Diana Jordanova, Emilia Tcherkezova, Hristo Popov, Antonia Mokreva, Plamen Georgiev, Ruslan Stoychev
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 21, Iss 12, Pp n/a-n/a (2020)
Abstract Archeological materials from the most ancient open‐pit gold mine in Europe have been investigated using mineral magnetic methods as part of the multidisciplinary research of the site. The aim of the study was to employ rock‐magnetic char
Externí odkaz:
https://doaj.org/article/8c9466dd8bd646dd9d31b60c21e9a945
Autor:
Claudia Isabelle Keller Valsecchi, M. Felicia Basilicata, Giuseppe Semplicio, Plamen Georgiev, Noel Marie Gutierrez, Asifa Akhtar
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-14 (2018)
In Drosophila the Male-Specific Lethal complex (MSLc) mediates upregulation of the single male X chromosome. Here the authors provide evidence that MSL2 also targets autosomal genes required for proper development and that MSL2 binds and similarly re
Externí odkaz:
https://doaj.org/article/2ea84366ae2041c79025b7945fc301b4
Publikováno v:
Tierärztliche Praxis Ausgabe G: Großtiere / Nutztiere. 50:258-264
ZusammenfassungDie wichtige Rolle von Kolostrum für das Immunsystem des Neonaten ist lange bekannt. Proteine und vor allem Immunglobuline müssen nach der Aufnahme den Verdauungstrakt mit seinen proteolytischen Enzymen intakt passieren, um in den ne
Autor:
Vasiliki Anevlavi, Walter Prochaska, Chiara Cenati, Ivan Ivanov, Sabine Ladstätter, Hristo Popov, Plamen Georgiev, Gergana Kabakchieva
Publikováno v:
Archaeological and Anthropological Sciences. 15
Autor:
Vasiliki Anevlavi, Walter Prochaska, Chiara Cenati, Ivan Ivanov, Sabine Ladstätter, Hristo Popov, Plamen Georgiev, Gergana Kabakchieva
Publikováno v:
Archaeological and Anthropological Sciences. 14
The paper presents evidence of Roman marble production in the Balkan region, specifically from the south-eastern Rhodope Mountain area (modern Bulgaria) and Armira. Although the Roman marble trade and production in antiquity are well known in Prokonn