نتایج جستجو برای: modification of natural zeolite

تعداد نتایج: 21205378  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان - دانشکده منابع طبیعی 1392

nowadays, air pollution is a global problem that has had significant growth by technology development, population growth andindustrial development. industrial development brought natural resources deterioration, more manufacturing products, and more environmental pollutants. if pollutant won’t be controlled, human-being and wildlife will face the critical risks. significant release and critical...

S. N. Ashrafizadeh S. Shirazian

ine"> Chabazite zeolite membranes were synthesized for their potential application in dehydration of natural gas. The membranes were prepared using secondary growth method on porous <span styl...

Journal: :Proceedings of the Institution of Civil Engineers - Geotechnical Engineering 2018

Journal: :IOP Conference Series: Materials Science and Engineering 2021

Journal: :E3S Web of Conferences 2020

Journal: :International Journal of GEOMATE 2021

Journal: :Journal of the Illuminating Engineering Institute of Japan 1991

2016
Changshun Deng Junji Zhang Lihui Dong Meina Huang Bin Li Guangzhou Jin Junbin Gao Feiyue Zhang Minguang Fan Luoming Zhang Yanjun Gong

The investigation on the modification of NaY zeolite on LaHY and AEHY (AE refers Ca and Sr and the molar ratio of Ca and Sr is 1:1) zeolites was proformed by XRD, N2-physisorption (BET), XRF, XPS, NH3-TPD, Py-IR, hydrothermal stability, and catalytic cracking test. These results indicate that HY zeolite with ultra low content Na can be obtained from NaY zeolite through four exchange four calcin...

Journal: :تحقیقات نظام سلامت 0
محسن سعدانی دانشجوی دکتری، مرکز تحقیقات محیط زیست، دانشگاه علوم پزشکی اصفهان، مربی، دانشکده بهداشت، دانشگاه علوم پزشکی و خدمات بهداشتی درمانی شهید صدوقی یزد، ایران احسان ابویی مهریزی عضو هیأت علمی گروه مهندسی بهداشت محیط دانشگاه علوم پزشکی خراسان شمالی، بجنورد، ایران کمال غدیری دانشجوی دکتری بهداشت محیط، دانشکده بهداشت، دانشگاه علوم پزشکی تهران، تهران، ایران

background: presence of heavy metals in leachate due to the biological accumulation characteristics of these materials endangered the living creatures' health especially human. purpose of this study is to study and investigate the possibility of two metals' absorption i.e, lead and cadmium from leachate by natural zeolite clinopteliolit and increase of the ability to absorb the zeolite by modif...

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