نتایج جستجو برای: v 0008 the average removal efficiency without iron nanoparticles application was c312484

تعداد نتایج: 16446366  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد مرودشت - دانشکده علوم تربیتی و روانشناسی 1392

the purpose of this study was to investigate the relationship between family functioning and marital adjustment humor couples are due to the nature and objectives of the research and application of methods for its implementation correlation was used. the study population consisted of all the couples in the city who uses random cluster sampling of 200 students were selected as sample. data from ...

Journal: :jundishapur journal of health sciences 0
afshin takdastan environmental technologies research center, department of environmental health,ahvaz jundishapur university of medical sciences, ahvaz, ir iran saeed emami tabar department of environmental engineering, islamic azad university, khuzestan science and research branch, ahvaz, ir iran abdolkazem neisi department of environmental health, ahvaz jundishapur university of medical sciences, ahvaz, ir iran azadeh eslami department of environmental engineering, college of environment and energy, tehran science and research branch, islamic azad university, tehran, ir iran; department of environmental engineering, college of environment and energy, tehran science and research branch, islamic azad university, tehran, ir iran. tel: +98-9166054619, fax: +98-6113342262

background existence of fluoride in drinking water above the permissible level causes human skeletal fluorosis. objectives electrocoagulation by iron and aluminum electrodes was proposed for removing fluoride from drinking water. materials and methods effects of different operating conditions such as treatment time, initial ph, applied voltage, type and number of electrodes, the spaces between ...

ژورنال: سلامت و محیط زیست 2014
رحمانی, علی رضا, شعبانلو, امیر, مهر علی پور, جمال,

Background and Objective: Electrochemical methods as one of the advanced oxidation processes (AOPs), have been applied effectively to degrade recalcitrant organics in aqueous solutions. In the present work, the performance of electro-Fenton (EF) method using iron electrodes on the degradation of phenol was studied. Materials and Methods: In this study, a lab-scale EF batch reactor equipped with...

Recently, the use of superparamagnetic iron oxide nanoparticles (SPIONS) as a new and promising source of iron in agriculture has been suggested that further investigation is needed before extensive field use. In a greenhouse experiment, the effect of coated magnetite nanoparticles with humic acid (Fe3O4/HA NPs) was investigated on iron deficiency chlorosis and photosynthesis efficiency compare...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ایلام 1388

the present study was an attempt to determine the types of motivation and levels of foreign language learning anxiety among efl students studying at azad and state universities in kermanshah and to determine the relationship between these two factors and language proficiency and gender. to this end, the foreign language learning motivation scale, by deci and ryan )1985(, were administered to 12...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد گرمسار - دانشکده ادبیات، زبانهای خارجی و تاریخ 1389

abstract the main purpose of this study was to investigate whether there was any significant difference between the speaking achievement of learners who were trained by means of consciousness raising of sociolinguistic skills and that of learners who were trained without the above mentioned task. the participants of this study consist of 60 intermediate level students participating languag...

آذری, علی, دهقان, سمانه, رضایی کلانتری, روشنک, نظری, شهرام,

Introduction and purpose: The release of chlorinated organic compounds (COCs) is accounted as a danger for public health and environment due to their harmful effects such as carcinogenicity, toxicity, and flammability. Trichlorethylene (TCE) is one of the most famous COCs, which is commonly used as a solvent for dry-cleaning and industrial degreasing and contaminates so...

Ahmad Reza Yari, Ayoob Rastegar, Gharib Majidi, Mehdi Tanhaye-Reshvanloo, Shahram Nazari, Soudabeh Alizadeh-Matboo,

Background and Purpose:Organic dyes with a complex structure are often toxic, carcinogenic, mutagenic, non-biodegradation and stable in the environment and if released to the environment without treatment can endanger the environment and human health. The aim was to evaluate the performance nanoscalezero-valent iron (NZVI) in the removal of dye acid red 18 (AR18) from aqueous solutions. Materia...

Journal: :iranian journal of chemistry and chemical engineering (ijcce) 2015
mostafa alizadeh esmail ghahramani mansur zarrabi sara hashemi

in this study, removal of methylene blue by electro-coagulation method using aluminum and iron electrodes was investigated. the influence of the operating parameters such as contact time, current density, anode type, inter-electrodes distance, initial and final ph and energy consumption rate was determined. dye removal was increased with increases in solution ph, current density and contact tim...

Ahmad Reza Yari, Gharib Majidi, Manochehr Emamian, Mehdi Tanhaye Reshvanloo, Mohammad Hasan Mahmodian, Shahram Nazari, Soudabeh Alizadeh Matboo,

Background & Aims of the Study: Organic dyes with a complex structure are often toxic, carcinogenic, mutagenic, non-biodegradation and stable in the environment and if released to the environment without treatment can endanger the environment and human health. The aim of this study was to evaluate the performance of H2O2 and H2O2/Fe0 Iron in removal of dye Acid Red 18 from aque...

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