Zobrazeno 1 - 10
of 50
pro vyhledávání: '"A. S. Khalafalla"'
Autor:
Mohammed F. Hamza, Eric Guibal, Adel A.-H. Abdel-Rahman, Marwa Salem, Mahmoud S. Khalafalla, Yuezhou Wei, Xiangbiao Yin
Publikováno v:
Molecules, Vol 27, Iss 21, p 7562 (2022)
The recovery of strategic metals such as rare earth elements (REEs) requires the development of new sorbents with high sorption capacities and selectivity. The bi-functionality of sorbents showed a remarkable capacity for the enhancement of binding p
Externí odkaz:
https://doaj.org/article/137613423d8247389c15fe10bd4f7ab8
Autor:
Mohammed F. Hamza, Hanaa A. Abu Khoziem, Mahmoud S. Khalafalla, Walid M. Abdellah, Doaa I. Zaki, Khalid Althumayri, Yuezhou Wei
Publikováno v:
Toxics, Vol 10, Iss 9, p 490 (2022)
The development of new materials based on biopolymers (as renewable resources) is substantial for environmental challenges in the heavy metal and radionuclide ions removal contaminations. Functionalization of chitosan with sulfonic groups was achieve
Externí odkaz:
https://doaj.org/article/61556f7445ae4f0b88ffa912655ebecf
Publikováno v:
Water Science, Vol 33, Iss 1, Pp 118-127 (2019)
ABSTRACTArtificial Neural Network (ANN) modelswere built to expect the compression strength of various types of concrete incorporatingnano silica (NS) and silica fume (SF) as partial cement replacement. The mixtures data used in the networks model,wh
Externí odkaz:
https://doaj.org/article/6ba78265633548bdad5dadc5f65f29a9
Publikováno v:
Water Science, Vol 32, Iss 2, Pp 276-286 (2018)
Application of modern techniques to rehabilitate structural elements due to aging and/or flexural cracks is of great concern by many researchers. In the current research, high strength epoxy matrix incorporated Carbon Nano Tubes (CNT) was used to bri
Externí odkaz:
https://doaj.org/article/fd11e9b3a84643d985cd50e8d68ae358
Publikováno v:
Journal of Material Cycles and Waste Management. 25:441-455
The primary goal of this work is to develop a technology that allows for the recovery of metal values from waste products, thereby promoting the wise and efficient use of our nation's resources. To achieve this goal, an industrial waste of El Kriymat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0a63cc14f55b6c4e1b50aca50a1b4d9
https://doi.org/10.1007/s10163-022-01550-2
https://doi.org/10.1007/s10163-022-01550-2
Publikováno v:
Proceedings of the Institution of Civil Engineers - Structures and Buildings. 175:363-372
The partial replacement of cement with nanomaterials such as nanosilica (NS) particles in concrete improves its strength and other properties. In this study, the effect of NS as a partial replacement of cement for concrete mixes and concrete beams wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cd6711111bf62ceb973349198273c07a
https://doi.org/10.1680/jstbu.19.00170
https://doi.org/10.1680/jstbu.19.00170
Autor:
Mahmoud S. Khalafalla
Publikováno v:
Journal of Radioanalytical and Nuclear Chemistry. 331:2503-2513
Promising green leaching technique was used by Humic acid (HA) for removing uranium from Abu Zeneima spent residue for environmental safety and cost-effective leaching. The studied residue is outlet from vat leaching process using sulfuric acid leach
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da669bc56af1187ce8a67d87672b7e0c
https://doi.org/10.1007/s10967-022-08249-6
https://doi.org/10.1007/s10967-022-08249-6
Autor:
Siddig S. Khalafalla, Umer Zahid, Abdul Gani Abdul Jameel, Usama Ahmed, Feraih S. Alenazey, Chul-Jin Lee
Publikováno v:
Energies, Vol 13, Iss 23, p 6421 (2020)
Methanol is a clean fuel and an important feedstock for the petrochemical industry. Conventionally, the coal-to-methanol process generates a substantial amount of CO2 emissions with a low yield of methanol. In this study, we propose the conceptual de
Externí odkaz:
https://doaj.org/article/02bf66fa81f84b1e9715775bea3d2013
Autor:
Dhaffer S. Al-Yami, Siddig S. Khalafalla, Usama Ahmed, Aqil Jamal, Fayez Nasir Al-Rowaili, Umer Zahid, Eid M. Al-Mutairi
Publikováno v:
Chemical Engineering Research and Design. 177:365-375
The continuous rise of global carbon emissions demands the utilization of fossil fuels in a cleaner and sustainable way. Gasification is a potential technology that can convert the dirty fossil fuels for the production of clean and environment friend
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a02fd96173a78a2c0c930de4838c397
https://doi.org/10.1016/j.cherd.2021.11.004
https://doi.org/10.1016/j.cherd.2021.11.004
Publikováno v:
International Journal of Environmental Analytical Chemistry. :1-16
The leaching process of uranium (U), rare earth elements (REEs) and copper (Cu) from El Allouga ore using tartaric acid was examined. The leaching condition time of reaction, temperature, tartaric ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f855cc6c6115c457c00f8ca0197d8f6
https://doi.org/10.1080/03067319.2021.1991334
https://doi.org/10.1080/03067319.2021.1991334