نتایج جستجو برای: removal of dye

تعداد نتایج: 21175308  

In this study, montmorillonite clay was used as the adsorbent for the removal of Aniline Blue dye, from aqueous solution by the batch adsorption technique under different conditions. The maximum removal of aniline blue dye for initial dye concentration 20 mg/L was more than 95% at optimum conditions (pH=4.5, contact time=30 min, and adsorbent dosage=2 g/L). The data of this study were fitted wi...

Background: The purpose of the present study was to assess the efficiency of ultrasound/hydrogen peroxide processes and ultrasound/hydrogen peroxide/ZnO nanoparticles in the removal of blue cat 41 dye from aqueous solutions. Methods: ZnO nanoparticles were prepared using the hydrothermal method. Variables including pH, concentration of ZnO nanoparticles, initial dye concentration, concentratio...

Journal: :iranian journal of health sciences 0
ahmad reza yari research center for environmental pollutants and department of environmental health engineering, school of public health qom university of medical sciences, qom, iran shahram nazari department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran ayoob rastegar department of environmental health engineering, school of public health, sabzevar university of medical sciences, sabzevar, iran soudabeh alizadeh-matboo department of environmental health engineering, school of public health, ardabil university of medical sciences, ardabil, iran gharib majidi department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran mehdi tanhaye-reshvanloo department of environmental health engineering, school of public health, qom university of medical sciences, qom, iran

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: :health scope 0
hossein kamani health promotion research center, zahedan university of medical sciences, zahedan, ir iran edris bazrafshan health promotion research center, zahedan university of medical sciences, zahedan, ir iran mohammad ghanbari ghozikali environmental health department of east azerbaijan province, health center, tabriz university of medical sciences, tabriz, ir iran majid askari department of material science and engineering, sharif university of technology, tehran, ir iran reza ameri department of environmental engineering, science and research branch, islamic azad university, tehran, ir iran; department of environmental engineering, science and research branch, islamic azad university, tehran, ir iran. tel: +98-2188968258, fax: +98-2166462267

conclusions the uv/zno system has been found an effective process with 90.2% cod removal and 95.6% dye removal after 50 minutes treatment. materials and methods in this work, zno catalyst and mercury lamp (uv-c, 254 nm) have been applied for removal of the c.i. sulphur red 14 dye from aqueous environments. the influence of various parameters such as the amount of zno, initial dye concentration,...

الماسی, حلیمه, اکبری, سمیه , دارائی, زهرا , عسگری, قربان, فردمال, جواد, قنبری, فرشید,

Background and purpose: Chemical dyes are widely used in textile industries and have harmful effects on the environment. They also contain carcinogenic and mutagenic substances. The goal of this study was optimization of the catalytic ozonation process using bone char ash modified by magnesium oxide in removal of reactive black 5dye from textile wastewater based on Taguchi design. Materials an...

ژورنال: سلامت و محیط زیست 2013
آیتی, بیتا, مرادی پسند, لیلا,

Background and Aim: In this study, the removal of dye blue reactive-171 by combination of advanced oxidation processes UV/H2O2 and SBAR has been investigated. Methods: The efficiency of chemical and biological system was first investigated separately. In chemical system, the kind, power, initial dye concentration and hydrogen parasitize and in biological system, hydraulic detention time, aerati...

H. Banimahd keivani M. Banimahd keivani M. Darvishpour M. H. Fekri

In this research, the removal of malachite green dye from Textile Wastewaters using polyaniline coated onto sawdust (PAni/SD) has been investigated. Ammonium peroxodisulphate was used as chemical oxidant for polymerization of polyaniline directly on the surface of sawdust. The effects of some important parameters such as pH, initial concentration, sorbent dosage, exposure time and temperature o...

Amir Anushiravani, Mansooreh Dehghani, Narges Shamsedini, Razieh Shabestari,

Abstract Background and purpose:The main objectives of this research were to evaluating the application of electrocoagulation process for 198 dye from the aqueous phase and determining the optimum operating conditions to the dye removal using aluminum and iron electrodes. Materials and Methods:The present study was conducted in bench-scale. The spectrophotometer DR 5000 was used to determine th...

Journal: :مجله دانشگاه علوم پزشکی ایلام 0
علیرضا رحمانی a rahmani همدان- دانشگاه علوم پزشکی- دانشکده بهداشت فاطمه برجسته عسکری f barjaste ایلام- دانشگاه علوم پزشکی- دانشکده بهداشت قربان عسگری gh askari همدان- دانشگاه علوم پزشکی- دانشکده بهداشت محمدتقی صمدی m samadi همدان- دانشگاه علوم پزشکی- دانشکده بهداشت کاظم گودینی k godini ایلام- دانشگاه علوم پزشکی- دانشکده بهداشت

introduction: dye removal from industrial wastewater has been considered as one of the most environmental issues. recently, new methods of treatment such as catalytic ozonation have been used to increase dye removal efficiency. so, the efficiency of catalytic ozonation by copper coated zeolite as a catalyst in the removal of reactive red 198 was investigated. materials & methods: in order to re...

Erythrosine B is widely used for dyeing in various applications, especially in the food industry, despite its already proved toxicity and carcinogenicity. Therefore, the purpose of this study is to evaluate the efficiency of the synthesis process of US/S2O8-2 in removing erythrosine B dye from aqueous solution. In this experimental study, the removal of erythros...

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