نتایج جستجو برای: the same as activated carbon

تعداد نتایج: 16617302  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه یزد - دانشکده زبانهای خارجی 1392

abstract since heubners (1985) pioneering study, there have been many studies on (mis) use/ non-use of articles by l2 learners from article-less and article languages. the present study investigated how persian l2 learners of english produce and interpret english definite descriptions and demonstrative descriptions. it was assumed that definite and demonstrative descriptions share the same cen...

دادبان شهامت, یوسف , اسرافیلی دیزجی, علی, اکبری جونوش, زهره, فرزادکیا, مهدی,

Background and purpose: Phenol and its derivatives are used as raw material in many chemical, pharmaceutical and petrochemical industries. It is classified as priority pollutant, due to its high toxicity. In this study, the magnetic activated carbon nano-composite was used for quick removal of phenol. Materials and methods: The activated carbon was modified by magnetic nano-particles....

ژورنال: سلامت و محیط زیست 2012
حسین زاده, ادریس, رحمانی, علیرضا,

Background and Objectives: The disposal of waste tires has become an increasingly important issue worldwide in recent years. Tires not only take up large amounts of valuable landfill space, but also create fire hazards and provide a refuge for disease- carrying creatures. The goal of this study was to produce activated carbon from scrap tires .Adsorption of Acid Black1 (AB1) in  aqueous solutio...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه کاشان - دانشکده علوم انسانی 1389

abstract poor reading comprehension can result in failure in using references, benefiting from professional gatherings and resources, keeping up with the growing body of knowledge in the virtual world of the internet, and failing to achieve in efl programs. the purpose of the present quasi-experimental study was to explore the effects of background knowledge and previewing narrative and expos...

Journal: :journal of health sciences and surveillance system 0
mohammad ali baghapour department of environmental health engineering, school of health and nutrition, shiraz university of medical sciences, shiraz, iran babak djahed department of environmental health engineering, school of health and nutrition, shiraz university of medical sciences, shiraz, iran mojdeh ranjbar department of environmental health engineering, school of health and nutrition, shiraz university of medical sciences, shiraz, iran

background and objectives: activated carbon is an adsorbent which is mostly employed in order to remove dye from aqueous solutions; however, commercial activated carbon is expensive and this is considered as an obstacle for its usage. therefore, the present study aimed to use waste paper as an inexpensive precursor to produce activated carbon. materials and methods: in the present study, koh wa...

اشرفی, داود, حیدری, سونیا, ززولی, محمد علی, نقی پور, داریوش, کلانکش, لاله,

Background and purpose: Bisphenol A (BPA) is a toxic environmental pollutant that is released from different industries. The aim of this study was to investigate bisphenol A adsorption by activated carbon production from almond shell applying response surface methodology (RSM). Materials and methods: In this descriptive-analytic study, activated carbon production from almond shell was used as ...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده ادبیات و زبانهای خارجی 1390

abstract a fundamental study of “historio-graphic metafiction” and “literary genres”, as introduced in “new historical philosophy”, and tracing them in the works of julian barnes having studied the two novels, the porcupine and arthur & george, by julian barnes, the researcher has applied linda hutcheon’s historio-graphic metafictional theories to them. the thesis is divided into five cha...

Journal: :محیط شناسی 0
محمد رضا سمرقندی دانشگاه علوم پزشکی همدان، دانشیار گروه مهندسی بهداشت محیط دانشکدة بهداشت مهدی هادی دانشگاه علوم پزشکی کردستان ، مربی گروه مهندسی بهداشت محیط سعید عزیزیان دانشکاه بوعلی همدان ، استاد گروه شیمی-فیزیک دانشکدة شیمی مهری سلیمانی امین آباد دانشگاه علوم پزشکی کردستان ، دانشجوی کارشناسی ارشد مهندسی بهداشت محیط

the used activated carbon was derived from pine-cone and was used for the removal of acid black 1(ab1) and acid blue 113(ab113) dyes. a batch sorption study was carried out in order to obtain optimum isotherm model. the study showed the best fit of the adsorption isotherm data was obtained using the langmuir model for both dyes. the monolayer maximum saturation capacities of ab1 and ab113 dyes ...

Anita Shafaroudi Hamid Ghanbari- Tuedeshki Hamid Reza Hafizi-Atabak Javad Safaei-Ghomi Mahdi Akbari Mojtaba Shariaty-Niassar,

Cellulose wastes of a wood and paper factory were used to produce activated carbon. Several chemical agents under various conditions were used for production of activated carbon and hence their adsorption properties have been evaluated. In addition the effect of process parameters such as raw material, chemical agent concentration, impregnation ratio, carbonization temperature, carbonization ti...

R. Davarnejad R. Pishdad S. Sepahvand

One of the famous dyes is methylene blue (MB) which is a symbol of hazardous dyes. In this research, methylene blue was adsorbed using the blends of saffron petals with activated carbon. Five independent variables involving pH (2-13), contact time (5-270 min), saffron petals powder dosage (0.1-10 g/l), initial concentration of methylene blue solution (20-300 ppm) and activated carbon dosage (0....

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