Zobrazeno 1 - 10
of 11
pro vyhledávání: '"David W. Koren"'
Bioleaching of six nickel sulphide ores with differing mineralogies in stirred-tank reactors at 30°C
Autor:
Rory A. Cameron, W. Douglas Gould, Saviz Mortazavi, Pierre L. Bedard, Rolando Lastra, Yves Thibault, Kevin Kennedy, Lucie Morin, David W. Koren
Publikováno v:
Minerals Engineering. 49:172-183
A bioleaching study was conducted with six nickel sulphide ores from different geographical locations across Canada. Mineralogical and chemical examination revealed considerable variability between the samples, particularly in the silicate phases. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abe8aacec347bb7014341a4ba8a32972
https://doi.org/10.1016/j.mineng.2011.03.016
https://doi.org/10.1016/j.mineng.2011.03.016
Autor:
Anoop Kapoor, David W. Koren, Rory A. Cameron, W. Douglas Gould, Morgan King, Bidyut R. Mohapatra
Publikováno v:
Minerals Engineering. 34:38-47
Thiocyanate and cyanide are formed during the processing of gold ores and the production of coke for steel production. Thiocyanate is also formed biologically from the detoxification of cyanide. Thiocyanate is less toxic than cyanide but more stable
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c0e3c6125720b61143cf366d9f1f9b93
https://doi.org/10.1016/j.mineng.2012.04.009
https://doi.org/10.1016/j.mineng.2012.04.009
Publikováno v:
Minerals Engineering. 24:709-718
The negative impact of acid mine drainage (AMD) on public and environmental health by degrading the aquatic and terrestrial ecosystem with a drastic decrease in pH and elevated levels of toxic heavy metals, metalloids and radionuclides necessitate th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9b79b47c6f582b6308421bc0336913b
https://doi.org/10.1016/j.mineng.2011.03.012
https://doi.org/10.1016/j.mineng.2011.03.012
Publikováno v:
Minerals Engineering. 23:591-599
Development of environmentally sustainable technologies for remediation of radionuclides is paramount because of their long-term persistence in different ecological niches and acute toxic and teratogenic effects on human, terrestrial and aquatic life
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::903b4578bdbaaf7248ee69737db3f180
https://doi.org/10.1016/j.mineng.2010.03.004
https://doi.org/10.1016/j.mineng.2010.03.004
Publikováno v:
CLEAN - Soil, Air, Water. 36:823-829
Inorganic sulfur compounds are oxidized mostly to sulfate by microorganisms belonging to the bacteria and archaea domains. These microorganisms produce different types of enzymes, e. g., oxidoreductases and hydrolases for the metabolism of inorganic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5806cab6c852878199f6f89af97b842d
https://doi.org/10.1002/clen.200700213
https://doi.org/10.1002/clen.200700213
Autor:
Orlando Dinardo, David W. Koren, W. Douglas Gould, Sankara Papavinasam, R. Winston Revie, Bidyut R. Mohapatra
Publikováno v:
Preparative Biochemistry and Biotechnology. 38:61-73
In order to determine the impact of immobilization on biocatalytic efficacy of sulfide oxidase, the kinetic and thermodynamic properties of native and DEAE-cellulose immobilized sulfide oxidase from Arthrobacter species FR-3 were evaluated. Immobiliz
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c187faeff50f9338a504e689613d6de
https://doi.org/10.1080/10826060701774361
https://doi.org/10.1080/10826060701774361
Autor:
David W. Koren, W.D. Gould, Orlando Dinardo, Sankara Papavinasam, R. W. Revie, Bidyut R. Mohapatra
Publikováno v:
Engineering in Life Sciences. 7:241-246
Response surface methodology was used to develop a fermentation medium for the enhanced biosynthesis of a novel sulfide oxidase by Arthrobacter species strain FR-3. The interactive effect of the medium components - such as glucose as the carbon sourc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b51465fa57b58fd1b1c1a0f3d2f1d90b
https://doi.org/10.1002/elsc.200620190
https://doi.org/10.1002/elsc.200620190
Autor:
Zdravko Duvnjak, David W. Koren
Publikováno v:
Journal of Chemical Technology & Biotechnology. 47:117-125
Saccharomyces cerevisiae ATCC 36859 preferentially consumes glucose from glucose–fructose mixtures. Synthetic media and complex media containing high fructose corn syrup supplemented with Jerusalem artichoke juice were used for the production of pu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a24a55c2e6df0f2d092730c2a88fdfd4
https://doi.org/10.1002/jctb.280470205
https://doi.org/10.1002/jctb.280470205
Development of environmentally sustainable technologies for remediation of radionuclides is of paramount importance because of their long-term persistence in different ecological niches and acute toxic and teratogenic effects on human, terrestrial, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::332dde0c0727bafc39b52e3ef51b2db3
https://doi.org/10.1016/b978-0-12-409548-9.09109-0
https://doi.org/10.1016/b978-0-12-409548-9.09109-0
Publikováno v:
Hydrometallurgy. 56:127-144
Although nitrification/denitrification processes have been used to remove ammonia and nitrate from municipal and industrial processes, there are few reported results on the removal of these ions from mine effluents. Ammonia and nitrate are present in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb0277e627d29e963e80e4fae499c478
https://doi.org/10.1016/s0304-386x(99)00088-2
https://doi.org/10.1016/s0304-386x(99)00088-2