نتایج جستجو برای: c0 represented initial dye concentration

تعداد نتایج: 871353  

احمدی مقدم, مهدی, جرفی, سهند, جعفرزاده حقیقی فرد, نعمت اله, دیناروند, فیض اله, علوی, نادعلی, میرعالی, سمانه,

Background and purpose: Textile dye effluents have some potential risks which require effective treatment before discharging into the environment. Advanced oxidation processes can remove pollutants faster than other processes due to active hydroxyl radical production; therefore, increase the efficiency of dye removal. This study was aimed at investigating dye removal process using UVA/ZnO and U...

B. N. Patil D. S. Shirsath V. S. Shrivastava Y. V. Marathe

The photodegradation of Ponceau-S dye was investigated using UV radiation in presence of nanosized Fe2 O3 .Removal efficiency of Ponceau-S was sensitive to the operational parameters such as dye concentration, catalyst dose, pH, contact time, TOC and COD. The photocatalytic treatment of red colored Ponceau-S dye by magnetic nano semiconductor (Fe2 O3 )is an effective, economic and faster mode. ...

In this paper, polyacrylonitrile PAN - titania TiO2 electrospun nanofiber PAN/TiO2 nanofiber was prepared via a facile electrospinning method. The characteristics of the PAN/TiO2 nanofiber were investigated using SEM and FTIR. The nanofiber showed retained nanofiber structures and high photocatalytic efficiency under UV light for the degradation of Direct Red 80 DR80 and Direct Red 23 DR23 in w...

Esrafili , Behnaz , Jalilzadeh Yengejeh , Reza ,

Background and objective: The wastewater discharged from textile industries is one of the main environmental pollutants that causes many problems for the environment if it is not treated or discharged. The present study compared Fenton oxidation process with coagulation and flocculation using the natural coagulant of Sodium Alginate in order to remove Reactive Red 198 Dye. Materials and method...

Journal: :iranian journal of catalysis 2011
alireza nezamzadeh-ejhieh mahshid khorsandi

a comparison of the photoefficiency of ni(ii) and nis incorporated into zeolite p towards photodecolorization of eriochrome black t dye solution was investigated in a photocatalytic reactor using uv lamp as a light source. the effect of various experimental variables on the decolorization performance of the process was evaluated by examining catalyst dosage, temperature, initial dye concentrati...

ژورنال: سلامت و محیط زیست 2013
رحمانی, علیرضا, شیرزاد سیبنی, مهدی, عسگری, قربان, فرخی, مهرداد,

Background and Objectives: Dyes are one of the main environmental pollutants in the industrial effluents including textile industries, which are harmful for human health and environment. The purpose of this research was to investigate removal efficiency of Reactive Black 5 (RB5) dye using adsorption onto strongly basic anion exchange resin as an appropriate adsorbent. Materials and Methods: Af...

ژورنال: طلوع بهداشت یزد 2015
محوی, امیر حسین , پورفداکاری, سودابه ,

Abstract Introduction: Dye effluents of some industries contain many toxic, carcinogenic, and mutagenic compounds therefore, wastewater colored contaminants of such industries should be meticulously refined using an appropriate method before discharging waste-water to the environment. Therefore, this study aimed to evaluate the effectiveness of Multi-Walled Carbon Nanotubes (MWCNTS) in dye r...

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...

Journal: :journal of chemical health risks 0
z. alishavandi graduate student, department of chemistry, firozabad branch, islamic azad university, firozabad, iran n. mosallanejad department of chemistry, mashhad branch, pn university, khorasan, iran r. shabani department of chemistry, firozabad branch, islamic azad university, firozabad, iran

in this study, a new adsorbent, silver nanoparticle loaded on activated carbon (ag˗np˗ac) was used for removal of acid yellow199 (ay 199) dye. this novel material was characterized and identified by different techniques such as brunauer, emmett and teller (bet), field emission scanning electron microscopy (fesem), x-ray diffraction (xrd) analysis. unique properties of this adsorbent such as hig...

Journal: :Journal of Engineered Fibers and Fabrics 2022

The raw jute fabric was oxidized with 0.2% or 0.4% NaIO 4 for 60 120 min to obtain valuable adsorbents the textile dye Congo Red (CR). Batch adsorption experiments were carried out as a function of solution pH, contact time, initial CR concentration, and temperature. At an concentration 25 mg/L, possessed lowest due availability content carboxyl aldehyde groups capable binding dye. fabrics reac...

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