نتایج جستجو برای: dye concentration

تعداد نتایج: 416532  

Journal: :Egyptian Academic Journal of Biological Sciences. G, Microbiology 2021

The aim of current study was to test the ability and optimize decolorization textile azo Reactive Orange 122 by Streptomyces sp (A5) isolated from dye contaminated soil. isolate assessed spectrophotometer at 3, 5 7 days in starch nitrate broth media amended with 0.35 g/L dye. Different incubation conditions like concentration dye, temperature pH were used present investigate their effect on rat...

Methylene blue was efficiently removed from aqueous solution by foam flotation using a rhamnolipid a biosurfactant as a dye collector. The effects of four parameters, namely, pH (1.5–11.5), frother concentration (5–65 ppm), aeration rate (2–6 L/min) and rhamnolipid to methylene blue weight ratio (0.5–6.5), on dye removal were studied and optimized using response surface methodology. Results...

In the present study the treatment efficiency of O3 and UV+O3 processes were compared for the oxidation of simulated dyebath effluent containing a mixture of a reactive dye (C.I. Reactive Blue 19) and various dye auxiliary chemicals. The color, COD and TOC removal rates were assessed for different processes. The effect of initial dye concentration and presence of sodium hydroxide and sodium car...

ژورنال: طلوع بهداشت یزد 2012
امراللهی, محسن, دهواری, محبوبه, احرامپوش, محمدحسن , جمشیدی, بهزاد , قانعیان, محمدتقی ,

  Dye compounds are the important contaminants  of  the  environment. The dyes are often toxic, carcinogenic and mutagenic and can led to allergies and skin problems. Thus, the dye contaminants should be treated before discharge to environment. The aim of this study was the evaluation of efficacy of Cuttle fish bone powder for the  removal of  Reactive Red 198 dye from aqueous solution and...

Visible light active graphitic carbon nitride/reduced graphene oxide/silver oxide nanocomposites with a p-n heterojunction structure were synthesized by chemical deposition methods. Prepared samples were characterized by different physico-chemical technics such as XRD, FTIR, SEM, TEM and DRS. Photocatalytic activity investigated by analyzing the Acid blue 92 (AB92) concentration during the time...

2012
Ouafa Benzina Fakher Frikha Héla Zouari-Mechichi Steve Woodward Lassaad Belbahri Emna Mnif Tahar Mechichi

Response surface methodology (RSM) was applied to optimize the decolourization of the diazo dye Sirius rose BB (SR) by crude laccase from the white-rot fungus Trametes sp. strain CLBE55. A Box–Behnken design using RSM with six variables, namely pH, incubation temperature, enzyme (laccase) concentration, 1-hydroxybenzotriazol (HBT) concentration, dye concentration and incubation time was used in...

This study investigated the effect of temperature, different concentrations of sodium carbonate,and the dose of organic solvent on the desorption of Reactive Red 198 dye from dye-saturated activated carbon using batch and continuous systems. The results of the batch desorption test showed 60% acetone in water as the optimum amount. However, when the concentration of sodium carbonate was raised,...

Background and Objective: Dyes have complicated structures, usually toxic and resistant to biological treatment which entered to environment by industrial waste streams. The aim of this study was the survey of isotherm and kinetic adsorption studies of Reactive Blue 19 (RB19) dye onto Barberry stems powder from textile industrial wastewater. Materials and Methods: This study was done i...

2016
Md. Abul Kalam Azad Md. Hamidur Rahman Sheikh Jaber Nurani Md. Abdul Halim Adnan Karim Fahmida Gulshan

Discharges of highly colored dye effluents in natural water constitute a significant burden on the environment. The solar driven photo-Fenton process based on Fe(III)-oxalate complexes, an important advanced oxidation processes (AOP) technology, has been attracting growing attention for the decomposition of organic dyes. Such processes are based on the light enhanced generation of the highly re...

Journal: :advances in environmental technology 0
jamshid behin department of chemical engineering, faculty of engineering, razi university, kermanshah, iran negin farhadian department of chemical engineering, faculty of engineering, razi university, kermanshah, iran

in this work, response surface methodology (rsm) and artificial neural network (ann) were used to predict the decolorization efficiency of reactive red 33 (rr 33) by o3/uv process in a bubble column reactor. the effects of four independent variables including time (20-60 min), superficial gas velocity (0.06-0.18 cm/s), initial concentration of dye (50-150 ppm) and ph (3-11) were investigated us...

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