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RISS 인기검색어
- 검색키워드
- 저자 : M.Sh. Zoromba (검색결과 4 건)
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M.S. Ahmed,T.M. Zewail,E-S.Z. El-Ashtoukhy,H.A. Farag,I.H. El Azab,F.A. Albatati,A.F. Al-Hossainy,M.Sh. Zoromba,M.H. Abdel-Aziz 한국공업화학회 2021 Journal of Industrial and Engineering Chemistry Vol.97 No.-
The goal of the present research is to study the impact of a stationary wiper almost touching a revolvingzinc solid cylinder on the rate of Cu+2 cementation. Initial Cu+2 ions concentration, speed of rotation, andthe effect of the presence and absence of a wiper were investigated. The degree of Cu+2 cementation wasstated in relation to the mass transfer coefficient which was valued under diverse circumstances. Thepresent study showed that the mass transfer coefficient accelerates as rotation speed and quantity of Cu+2increase. The presence of a wiper enhances the degree of Cu+2 cementation by an extent that varies from1.59 to 64% subject to the operational circumstances. The present mass transfer data have beeninterrelated by dimensionless equations. The importance of such relationships in the sizing and runningof rotating cylinders used for performing diffusion- restricted reactions is underlined.
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A review of polymeric nanocomposite membranes for water purification
M. Bassyouni,M.H. Abdel-Aziz,M.Sh. Zoromba,S.M.S Abdel-Hamid,Enrico Drioil 한국공업화학회 2019 Journal of Industrial and Engineering Chemistry Vol.73 No.-
Nanocomposites are now commonly employed to augment the standard polymeric membrane materialsthat are used in water treatment processes. A number of different materials and methods have been putforward; amongst those that show the greatest promise so far are thin-film nanocomposite (TFN),electrospun polymeric nanofibrous membranes, carbon nanotubes, metal and metal oxides, grapheneand graphene oxide, and zwitterionic materials. This paper presents a detailed review of the currentdevelopments in the use of polymeric nanocomposite membranes for purifying water. Variousnanocomposite membranes have been reported to evaluate their effectiveness in terms of resistance tofouling and the performance of the membranes. A specific focus has been placed on better understandinghow nanomaterials can be used in a number of different ways, such as nanofiltration, micro-filtration,reverse osmosis and membrane distillation. This review aims to offer inspiration for further progress inthefield of water treatment and desalination employing polymeric nanocomposite membranes.
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M.H. Abdel-Aziz,E-S.Z. El-Ashtoukhy,M.Sh. Zoromba,M. Bassyouni,G.H. Sedahmed 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.82 No.-
In this work, removal of nitrates by electrocoagulation in a batch electrochemical cell with horizontallyoriented electrodes was studied, the anode was a horizontal Al serpentine tube whose inner surface canpotentially act as a built-in cooler to control the cell temperature, a H2 evolving Al plate cathode wasplaced beneath the anode at the cell bottom where the stirring action of H2 bubbles improve the mixingconditions at the anode. The effect of operating parameters, such as initial NO3 concentration, initial pHof the solution, applied current density, and NaCl concentration on the removal efficiency wasinvestigated. The electrical energy consumption of the cell was calculated at different operatingparameters in order to optimize the operating conditions. The removal efficiency of the cell reached 100%after 100 min. A kinetic model for the process was proposed and verified by the experimental data. Themerits of the present new cell which is self-stirred and contains a built-in heat transfer facility fortemperature control were highlighted. Importance of the present work for agriculture drainage waterand underground water remediation was pointed out.
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M.Sh. Zoromba,H.A. Maddah,M.H. Abdel-Aziz,Ahmed F. Al-Hossainy 한국공업화학회 2022 Journal of Industrial and Engineering Chemistry Vol.112 No.-
HCl doped-copolymer of ortho phenylene diamine and meta phenylene diamine was prepared by usingoxidative polymerization method with ferric chloride as an oxidizing agent in the existence of sodiumdedocyl sulphate as a soft template. The microporous structure thin films of hybrid copolymer/ZrO2nanocomposite [copolymer/ZrO2]NC were fabricated using a physical vapor deposition (PVD) method. The effect of addition of zirconium oxide nanoparticles [ZrO2]NPs on the physical properties of the copolymerwas discussed in the light of crystallinity and optical properties. The average crystallite size of[ZrO2]NPs is around 40 nm. The copolymer showed an absorbance of 1.18 at the wavelength (k)374 nm, which increased to 1.26 at k = 440 nm after glycine addition, also increased to 1.53 at k = 486nm after [ZrO2]NPs loading. Also, the significant changes in the absorption index and indirect/direct bandgapof the copolymer have been detected. The materials Studio 7.0 program on TDDFT/DMol3 was used tooptimize the molecular structure and perform the frequency calculations for the crystal models and isolatedmolecules. The DFT-Gaussian09W-vibration values are quite similar to the experimental data eitherin the structure or in the optical properties. The improvements in optical properties were achieved andrevealed the possibility of using the hybrid nanocomposite films in the polymers solar cell application.
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