this study evaluates the effectiveness of adsorption process by granular activated carbon (gac) compared with a novel formulation of coagulation - flocculation process for dye removal from textile wastewater. in this regard, acidic, reactive, disperse and direct red dye are used to prepare the synthetic dye. dominant wave length for each dye is determined by spectrophotometeric method. using ga...

in the present work, we have investigated the sorption efficiency of the treated activated carbon from walnut shell(acw) towards direct red 81 (dr81) and direct blue 71 (db71) for the removal from aqueous solution. thesorption study of acw at the solid-liquid interface was investigated using kinetic, sorption isotherms, ph effectand amount of adsorbent. experimental data were analyzed by langmu...

As an eco-friendly material, Zn-adeninate bio-metal-organic framework (bio-MOF) was investigated as efficient adsorbent for both anionic and cationic dyes. The adsorption capability of the synthesized bio-MOF confirmed by its notable surface area 52.62 m2 g−1 total pore volume 0.183 cm3 g−1. profiles direct red 81 (DR-81) methylene blue (MB) dyes were under different operating parameters. optim...

In the present work, we have investigated the sorption efficiency of the treated activated carbon from walnut shell(ACW) towards Direct Red 81 (DR81) and Direct Blue 71 (DB71) for the removal from aqueous solution. Thesorption study of ACW at the solid-liquid interface was investigated using kinetic, sorption isotherms, pH effectand amount of adsorbent. Experimental data were analyzed by Langmu...

OBJECTIVES We sought to assess the impact of direct stenting (DS) using the sirolimus-eluting stent (SES) on angiographic and clinical outcomes. BACKGROUND The SES is superior to bare-metal stents in the treatment of native de novo coronary artery lesions in randomized, controlled trials. METHODS A post hoc analysis was performed on 225 patients (158 men; 62 +/- 11 years old) who received S...

The magnetic adsorbent nanoparticle was modified using cationic surface active agent. Zinc ferrite nanoparticle and cetyl trimethylammonium bromide were used as an adsorbent and a surface active agent, respectively. Dye removal ability of the surface modified nanoparticle as an adsorbent was investigated. Direct Green 6 (DG6), Direct Red 31 (DR31) and Direct Red 23 (DR23) were used. The charact...

We report photocatalytic decolorization of direct red 81 (5-Solamine) in water at acidic pH and in presence of external UV light irradiation of zinc oxide (ZnO) nanparticle catalysts on granule glass as a semiconductor photocatalysts. In our study the weight of photocatalyst was constant. The photodecomposition rates have been found to be different by applying the different atmospheres through ...

Herein, respiratory nitrate reductases (NAR) were utilized in the biosynthesis of zero-valent iron (ZVI) graphene nanocomposite as a simultaneous reducing and capping agent, for first time, to efficiently adsorb methylene blue (MB) direct red-81 (DR-81). Under anaerobic conditions, greenly synthesized was incubated with precursor presence crude-NAR enzyme 48 h obtain ZVI composite followed by c...