Zobrazeno 1 - 10
of 78
pro vyhledávání: '"R.K. Amankwah"'
Autor:
J. Mantey, K.B. Nyarko, F. Owusu-Nimo, K.A. Awua, C.K. Bempah, R.K. Amankwah, W.E. Akatu, E. Appiah-Effah
Publikováno v:
Heliyon, Vol 6, Iss 6, Pp e04312- (2020)
Environmental media contamination with mercury, because of illegal artisanal small-scale gold mining (popularly called galamsey), is a major concern in Ghana; yet specific details as to how such contaminations are influenced or distributed across dif
Externí odkaz:
https://doaj.org/article/a2aac3734cc947ff8a7e04e2fc33757a
Autor:
David Oluwasegun Afolayan, Mingjiang Tao, Azikiwe Peter Onwualu, R.K. Amankwah, Adelana Rasak Adetunji, Carrick McAfee Eggleston
Publikováno v:
Mining, Vol 1, Iss 15, Pp 224-240 (2021)
Mining
Volume 1
Issue 2
Pages 15-240
Mining
Volume 1
Issue 2
Pages 15-240
Barite, used in mud formulation, is mined in several places to support the industry. However, there is insufficient literature on the downside of mining and associated hazards, especially in the artisanal barite mining sector. This paper contains thr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0348dd53799c264695ba16833702219b
https://www.mdpi.com/2673-6489/1/2/15
https://www.mdpi.com/2673-6489/1/2/15
Autor:
R.K. Amankwah, Adelana Rasak Adetunji, David Oluwasegun Afolayan, Oghenerume Ogolo, Azikiwe Peter Onwualu
Publikováno v:
Journal of Petroleum Exploration and Production Technology. 11:2157-2178
Successful drilling operations are dependent on the properties of the drilling fluid used to drill wells. Barite is used as a weighting agent during the preparation of drilling fluid. Over the years, oil and gas industry in Nigeria has been depending
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71dc8b5c672c43dcb4d225147121c9b5
https://doi.org/10.1007/s13202-021-01164-8
https://doi.org/10.1007/s13202-021-01164-8
Autor:
Francis Kwaku Darteh, Millicent Nkrumah Oppong, Philip Adu, Abdul Wasiu Mamudu, Alex Kwasi Saim, R.K. Amankwah
Publikováno v:
Environmental Technology Reviews. 10:111-130
Biologically synthesized metallic nanoparticles for catalytic activities in wastewater treatment applications is regarded as a safer alternative to usual physical and chemical methods due to their ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5fefd6090ffe916a90815f485a9b057e
https://doi.org/10.1080/21622515.2021.1893831
https://doi.org/10.1080/21622515.2021.1893831
Publikováno v:
Ghana Mining Journal. 20:34-44
Cyanide, a carbon-nitrogen radical, is a major building block in many industries including pharmaceuticals, petrochemical and gold processing. In the gold extraction industry, cyanide has been the universal lixiviant for over a century due to better
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4b2706f78a30e39e1af889c12bef2930
https://doi.org/10.4314/gm.v20i1.4
https://doi.org/10.4314/gm.v20i1.4
Publikováno v:
The Extractive Industries and Society. 7:583-586
As is the case in most corners of sub-Saharan Africa, in Ghana, the number of women pursing work in artisanal and small-scale mining (ASM) – low-tech mineral extraction and processing – is increasing. Their dependency on incomes from the sector,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::98037d8935b50dd8bd2150f6a1579811
https://doi.org/10.1016/j.exis.2020.03.004
https://doi.org/10.1016/j.exis.2020.03.004
Akademický článek
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This paper presents a study on characterisation of refractory ore, biooxidation feed and product, and cyanidation tailings with the aim of understanding the causes of excessive continuous frothing, incomplete sulphide oxidation, high reagent consumpt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81c5857caade8e4a9dee42997ec9b1eb
https://hdl.handle.net/11541.2/142659
https://hdl.handle.net/11541.2/142659
Autor:
Coryanne Mansell, R.K. Amankwah, Grace Yeboah Asuamah, Bernadette Atosona, Emmanuel Effah, David Ferring, Kyle Hartfield, Natasha Sastri, Augustus Chang, Heidi Hausermann, Graciela Mentz
Publikováno v:
World Development. 108:103-114
Gold prices hit historic highs following the 2008 financial crisis, catalyzing an international gold rush. Along Ghana's Offin River, recent mining activities have irreversibly transformed the landscape and lives of local people. Cocoa farms, subsist
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::679175b950793d9916172920a9d189c2
https://doi.org/10.1016/j.worlddev.2018.03.014
https://doi.org/10.1016/j.worlddev.2018.03.014
Publikováno v:
Ghana Mining Journal; Vol 18, No 1 (2018); 65-71
A typical challenge encountered on most gold processing plants during leaching of refractory ores is the reduction in recovery due to the presence of carbonaceous matter which preg-robs dissolved gold, thus reducing overall recovery. To reduce preg-r
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1844d93ee65883affe7c9a5322dd5852
https://doi.org/10.4314/gm.v18i1.8
https://doi.org/10.4314/gm.v18i1.8