نتایج جستجو برای: mfi nano zeolite membrane

تعداد نتایج: 447492  

Journal: :تحقیقات نظام سلامت 0
بیژن بینا استاد، مرکز تحقیقات محیط زیست و گروه بهداشت محیط، دانشکده بهداشت دانشگاه علوم پزشکی اصفهان، اصفهان، ایران افشین ابراهیمی استادیار، مرکز تحقیقات محیط زیست و گروه بهداشت محیط، دانشکده بهداشت دانشگاه علوم پزشکی اصفهان، اصفهان، ایران امیر محمدی انشجوی کارشناسی ارشد، کمیته تحقیقات دانشجویی، گروه بهداشت محیط، دانشکده بهداشت و مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران محمد مهدی امین دانشیار، مرکز تحقیقات محیط زیست و گروه بهداشت محیط، دانشکده بهداشت دانشگاه علوم پزشکی اصفهان، اصفهان، ایران حمیدرضا پورزمانی دانشجوی کارشناسی ارشد، کمیته تحقیقات دانشجویی، دانشکده بهداشت و مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، اصفهان، ایران.

background: natural organic compounds are known as precursors in the formation of disinfection byproducts. the aim of this study was to evaluate of effect of modified cationic surfactant nano zeolite in the removal of humic acid (ha) from water. materials and methods: nano zeolite (clinoptilolite) was modified by cationic surfactant solution hexadecyltrimethylammonium bromide (hdtma-br), in dos...

Journal: :journal of particle science & technology 2015
mohammad kazemeini amir charkhi seyyed javad ahmadi

in order to investigate the gas separation ability of a column packed with nanozeolitic material, nano nay zeolite was synthesized and granulated. these uniform granules packed in a chromatographic column were utilized for separation of xe and kr under various operating conditions. with regards to the response peaks obtained from trace injections of xe and kr into the column, the first and seco...

Journal: :journal of oil, gas and petrochemical technology 0
seyede fateme banihashemi nano structure material research center, faculty of chemical engineering, sahand university of technology hamed azani nano structure material research center, faculty of chemical engineering, sahand university of technology ali akbar babaluo nano structure material research center, faculty of chemical engineering, sahand university of technology

in the present work, b-zsm-5 zeolite membranes were synthesized on porous tubular α-alumina supports by several subsequence in situ crystallization hydrothermal treatments. the tio2- bohmite and ɣ- alumina intermediate layers were applied to improve the lattice matching between zeolite layer and the support. the uniform membrane intermediate layers with low permeation resistance were prepared o...

2012
Yangong Zheng Xiaogan Li Prabir K. Dutta

The unique properties of microporous zeolites, including ion-exchange properties, adsorption, molecular sieving, catalysis, conductivity have been exploited in improving the performance of gas sensors. Zeolites have been employed as physical and chemical filters to improve the sensitivity and selectivity of gas sensors. In addition, direct interaction of gas molecules with the extraframework ca...

2013
Kai Stueckenschneider Juliane Merz Victor Milman Gerhard Schembecker

The separation and purification of peptides and proteins using chromatography can make up more than half the amount of the total purification costs of a biotechnological process [1]. The development of cost-efficient processes still suffers from the lack of understanding on a molecular level of adsorption mechanisms of biomolecules on materials surfaces. To explore the power of computer science...

Journal: :Civil engineering and architecture 2022

An experimental study conducted to evaluate the hardened and durability characteristics of ternary blended concrete containing Nano-Silica Zeolite along with steel fibers act as micro- reinforcement has been presented in this paper. were included different dosages optimum combination above two materials (Nano-Silica -1% Zeolite- 10%) obtained through trails from viewpoint workability strength. ...

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