rigorous mathematical modeling of adsorption processes in packed beds involves time-consuming computations which are considered as the fundamental weakness of such thorough mathematical models. thus, reducing the computation time was a key factor in improving adsorption mathematical models. in order to achieve this goal, an attempt was made to know how much using different numerical methods inf...

Ion exchange properties of five different Japanese natural zeolites in seawater were examined. Sodium ions could be reduced by all zeolites, although anions, Cl(-) and SO(4)(2-), in seawater showed barely changes. Natural zeolite desalination treatment mainly depends on the ion exchange between Na(+), K(+) and Mg(2+) in seawater and Ca(2+) in natural zeolite. This study found that mordenite ...

Mohammad Hadi Almasi 1, Ali Sadollah 2, Seungmo Kang 1,* and Mohamed Rehan Karim 3 1 School of Civil, Environmental and Architectural Engineering, Korea University, 136-713 Seoul, Korea; [email protected] 2 Strategic Center for Energy and Sustainable Development, Semnan branch, Islamic Azad University, Semnan, Iran; [email protected] 3 Center for transportation research (CTR), F...

This paper compares experimental results on methylene blue (MB) removal systems based on ozone oxidation, zeolite adsorption, and simultaneous adsorption-oxidation using ozone in the presence of natural zeolite. The effect of pH (2-8), and the presence of radical scavengers (sodium acetate) on process rates and removal efficiencies are assessed at laboratory scale. The experimental system consi...

considering the point that the existence of heavy metals in the wastewater are so dangerous forthe environment and it would have many bad consequences for all the creatures including human beings, wemust try out the ways that make us capable of adsorbing these heavy metals. in order to accomplish this goal we should use a method called adsorbing. in this study the adsorption of copper ions in h...

Bahareh Abtahi-Naeini, Hamidreza Sadeghiyan1, Neda Adibi2, Mohammad Reza Shokrollahi3, Mohsen Pourazizi4 Department of Dermatology, Skin Diseases and Leishmaniasis Research Center, Isfahan University of Medical Sciences, 1Department of Dermatology, Isfahan University of Medical Sciences, 2Department of Dermatology, Psychosomatic Research Center, Isfahan University of Medical Sciences, Isfahan, ...

this study was conducted to determine the effect of cliniptilolite natural zeolite on deficit irrigation stress tolerance on maize cultivar ksc704. the experiment was laid out as a factorial design based on randomized complete block with three replications at seed and plant improvement institute, karaj in 2012. four irrigation levels, including irrigation after 70, 95, 120 and 145 mm cumulative...