نتایج جستجو برای: removal of dye
تعداد نتایج: 21175308 فیلتر نتایج به سال:
Abstract Background and purpose: Increasing industrial activities and the subsequent discharge of untreated wastewater containing dye to aqueous environment can cause problems such as reducing the sun light penetration, creating anaerobic conditions, allergy and cancer. Adsorption is considered as one of the most efficient and effective methods for dye removal. The aim of this study was to m...
Mesoporous carbon (CMK-3) modified with Fe3O4 nanoparticles has been successfully synthesized and characterized by powder X-ray diffraction (XRD), N2 adsorption-desorption, scanning electron microscope (SEM) and transmission electron microscopy (TEM).The results depict that the synthesized Fe-CMK-3 preserved the ordered mesoporous structure of CMK-3, and magnetic species were dispersed insi...
background; recently, there has been a great concern about the consumption of dyes because of their toxicity, mutagenicity, carcinogenicity, and persistence in the aquatic environment. therefore, the aim of this study was to determine the feasibility of using lemna minor for acid blue 292 (ab292) dye removal from aqueous solution and to determine the optimal conditions. methods; this experiment...
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...
the nano sized tio2 and zno are the most active photocatalysts. methylene blue was used as a reference molecule for the photocatalytic degradation. the tio2 and zno can totally remove methylene blue dye. the effect of various process parameters like initial concentration, contact time, dose of catalyst and ph on the extent of removal of dye by photocatalysis in presence of tio2 and zno was stu...
application of pomegranate seed powder in the removal of reactive red 198 dye from aqueous solutions
industrial effluents, especially the textile industry are discussed as one of the fundamental problems of the environment .dyes are materials with complex structures that enter into the wastewater from different stages of the textile industry. colors are often toxic, carcinogenic and mutagenic. this study investigated the absorption efficiency of reactive red 198 dye from aqueous solutions by p...
Electrospinning of nanofibers with cyclodextrin (CD) is attractive because the produced fibers can potentially increase the efficiency of nanofibrous membranes by facilitating the complex formation with organic compounds and high surface area of the nanofibers. In this work, polyacrylonitrile (PAN) nanofibers functionalized with β– cyclodextrin (βCD) during an electrospinning process were used ...
Introduction: Textile industries produce large volume of colored dye effluents which are toxic and removal of dyes from wastewater is a significant environmental issue. Advanced oxidation process (AOPs) is alternative method for the complete degradation many organic pollutants. ZnO and TiO2 are important photocatalysts with high catalytic activity that have attracted much research attention. ...
Background & Aims of the Study: Methylene blue (MB) is a risk for human and environment. Adsorption process is one of the removal mechanisms of MB. The purpose of this research was the evaluation of low cost adsorbent of walnut bark granule for MB dye removal from aqueous environments. Materials & Methods: In this experimental research, the effect of various operating parameters...
Introduction: The water pollution remediation is a challenging topic in environmental science. The purpose of this study was to achieve the practical methods for evaluation of the efficiency of latest modern technologies in order to remove dyes from the aqueous solution. Methods: In this experimental study, we used nanotechnology technique for production of the Sodium alginate magnetic be...
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