Zobrazeno 1 - 10 of 67 pro vyhledávání: '"Ali Reza Keshtkar"'
1
Akademický článek
Application of response surface methodology for thorium(IV) removal using Amberlite IR-120 and IRA-400: Ion exchange equilibrium and kinetics
Autor: Ehsan Zamani souderjani, Ali Reza Keshtkar, Mohammad Ali Mousavian
Publikováno v: Journal of Particle Science and Technology, Vol 3, Iss 2, Pp 101-112 (2017)
In this work, thorium (IV) removal from aqueous solutions was investigated in batch systems of cationic and anionic resins of Amberlite IR-120 and IRA-400. In this way, the effects of pH, initial Th(IV) concentration and the amount of adsorbent were
Externí odkaz: https://doaj.org/article/48470093ce244b128e0f6ba50f67feca
Zobrazit plný text záznamu
2
Akademický článek
Investigation of Effect of Influent Concentration and Flow Rate on Nickel Biosorption using Protonated Cystoseira indica Brown Alga in a Packed Bed Column and Modeling the Experimental Data
Autor: Ali Reza Keshtkar, Hossein Dastebashi, Morteza Ghasemi Torkabad, Mohammad Ali Moosavian
Publikováno v: سلامت و محیط, Vol 6, Iss 4, Pp 418-430 (2013)
Background and Objectives: Biosorption is a new and inexpensive technique in heavy metals removal and recovery from aqueous solutions. In order to evaluate the potential of this method for the removal of nickel ions, biosorption of nickel ions from a
Externí odkaz: https://doaj.org/article/58fcaf060ae84c8da1147f988400b673
Zobrazit plný text záznamu
3
Akademický článek
Modeling of Anaerobic Digestion of Complex Substrates
Autor: Ali Reza Keshtkar, Gity Abolhamd, Behrooz Meyssami, Hossein Ghaforian
Publikováno v: Iranian Journal of Chemistry & Chemical Engineering, Vol 22, Iss 2, Pp 61-74 (2003)
A structured mathematical model of anaerobic conversion of complex organic materials in non-ideally cyclic-batch reactors for biogas production has been developed. The model is based on multiple-reaction stoichiometry (enzymatic hydrolysis, acidogene
Externí odkaz: https://doaj.org/article/816e34abca994fb99b60d7811418401a
Zobrazit plný text záznamu
4
Performance evaluation of sodium alginate/polyvinyl alcohol/polyethylene oxide/ZSM5 zeolite hybrid adsorbent for ion uptake from aqueous solutions: a case study of thorium (IV)
Autor: Marzieh Talebi, Fazel Zahakifar, Ali Reza Keshtkar
Publikováno v: Journal of Radioanalytical and Nuclear Chemistry. 327:65-72
In this paper, the thorium uptake from aqueous solution using SA/PVA/PEO/ZSM5 nanohybrid adsorbent has been investigated. The effect of zeolite content, pH, adsorbent dose, contact time, initial concentration, and temperature parameters was scrutiniz
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0e25a5e4de7bbf83a874ea947e9a2c11
https://doi.org/10.1007/s10967-020-07479-w
Zobrazit plný text záznamu
7
La(III) and Ce(III) biosorption on sulfur functionalized marine brown algae Cystoseira indica by xanthation method: Response surface methodology, isotherm and kinetic study
Autor: Mehrnaz Mofras, Mohammad Ali Moosavian, Hozhabr Sohbatzadeh, Ali Reza Keshtkar
Publikováno v: Groundwater for Sustainable Development. 8:144-155
In this study, chemically modified Cystoseira indica brown algae by xanthation method was utilized to study the biosorption of La(III) and Ce(III) ions from the aqueous solutions under batch mode. The effects of four variables including pH (2–6), t
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5834170f7190a6dd5cb7a7e8dbc01ac1
https://doi.org/10.1016/j.gsd.2018.10.005
Zobrazit plný text záznamu
8
Modeling and Simulation of Flow and Uranium Isotopes Separation in Gas Centrifuges Using Implicit Coupled Density-Based Solver in OpenFOAM
Autor: Mohammad Hossein Askari, Ali Akbar Salehi, Valiyollah Ghazanfari, Mohammad Mahdi Shadman, Ali Reza Keshtkar
Publikováno v: European Journal of Computational Mechanics.
The performance of a gas centrifuge that is used for isotopes separation is dependent on the gas flow inside it. In this study, for modeling the UF6 gas flow, an Implicit Coupled Density-Based (ICDB) solver, was developed in OpenFOAM. To validate the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f501996b17352a4890a760b1da11c851
https://doi.org/10.13052/ejcm2642-2085.2911
Zobrazit plný text záznamu
9
Numerical Simulation Using a Modified Solver within OpenFOAM for Compressible Viscous Flows
Autor: Valiyollah Ghazanfari, Mohammad Mahdi Shadman, Ali Akbar Salehi, Mohammad Hossein Askari, Ali Reza Keshtkar
Publikováno v: European Journal of Computational Mechanics.
In this work, we attempted to develop an Implicit Coupled Density-Based (ICDB) solver using LU-SGS algorithm based on the AUSM+ up scheme in OpenFOAM. Then sonicFoam solver was modified to include viscous dissipation in order to improve its capabilit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::748769c0ba4381b5a85806ff29429ae7
https://doi.org/10.13052/ejcm2642-2085.2861
Zobrazit plný text záznamu
10
Selective concentration of uranium from bioleach liquor of low-grade uranium ore by nanofiltration process
Autor: Ali Reza Keshtkar, S.J. Safdari, M. Ghasemi Torkabad
Publikováno v: Hydrometallurgy. 178:106-115
Three commercially available nanofiltration membranes (PES-2, NF-1 and NF-2) were employed for selective concentration of uranium from a bioleach liquor of low-grade uranium ore. Performance of the membranes under a variety of operational conditions
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b646fd643cc804ca1bf2053e02cc4bb6
https://doi.org/10.1016/j.hydromet.2018.04.012
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje