Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Narine Vardanyan"'
Publikováno v:
Minerals
Volume 9
Issue 2
Minerals, Vol 9, Iss 2, p 69 (2019)
Volume 9
Issue 2
Minerals, Vol 9, Iss 2, p 69 (2019)
Bioleaching of metal sulfides is an interfacial process where adhesion and subsequent biofilm formation are considered to be crucial for this process. In this study, adhesion and biofilm formation by several acidophiles (Acidithiobacillus, Leptospiri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b6e68ba5d7a05ab9ac44e516f7440e5
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=85061719276
https://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&origin=inward&scp=85061719276
Autor:
Arevik Vardanyan, Narine Vardanyan
Publikováno v:
Universal Journal of Microbiology Research. 2:27-31
Sulphur-oxidizing bacteria strain SO-1 and strain SO-2 have been isolated respectively from leaching pulp of zinc and copper concentrates. The cells of isolated bacteria are rods with the size of 0.3-0.5 x 0.7-2.0 mkm. They are capable of oxidizing e
Publikováno v:
Advanced Materials Research. 825:388-391
The bioleaching of sulfide minerals by iron oxidizing bacteria are implemented by direct and indirect mechanisms. The direct dissolution of minerals is caused by the attack of sulfide ions by enzymatic system of bacteria. In the indirect mechanism th
Publikováno v:
Universal Journal of Microbiology Research. 1:22-25
Leptospirillum sp. str. ZC isolated from bioleaching pulp of zinc concentrate is capable of oxidizing Fe (II) with the optimal temperature of 37℃. In pure culture bacteria is unable to oxidize pyrite, however, its growth together with sulfur oxi
Autor:
Narine Vardanyan, Arevik Vardanyan
Publikováno v:
Applied Biochemistry and Microbiology. 47:515-519
Ability for selective extraction of copper and zinc from zinc concentrate using association of chemolithotrophic bacteria was investigated. In the presence of bacterial association, the rate of leaching of zinc, copper, and iron was increased 3-fold,
Autor:
S. Z. Nagdalyan, Narine Vardanyan
Publikováno v:
Applied Biochemistry and Microbiology. 45:401-405
The main characteristics of a periodic bioleaching of the refractory gold-bearing pyrite ore from the Tandzut deposit (Armenia) with the help of moderate thermophilic bacterium Sulfobacillus thermosulfidooxidans subsp. asporogenes and original thermo