نتایج جستجو برای: azo dye wastewater

تعداد نتایج: 75707  

Elham Askari Mohammad Habibi,

Mn doped ZnO nanocomposite thin film coated on glass by a simple spin-coating method was used to degrade an azo textile dye from aqueous environment. Mn doped ZnO nanocomposite thin film was characterized by means of X-ray diffraction (XRD) and scanning electron microscopy (SEM). The photo-reduction activity of photocatalyst was evaluated using an azo textile dye as organic contaminant irradiat...

Journal: :Environmental Science and Pollution Research 2021

Developing superior, rapid, cost-effective adsorbents derived from organic spent adsorbent is an economically sustainable way for purifying azo dye wastewater. Herein, we report a precursor-calcination strategy the recycle of to high value-added three-dimensional sulfate-functionalized MgAl-layered double oxide (3S-LDO). Thanks unique property sulfate group and LDO, 3S-LDO exhibited superior (4...

Anagha Anu K.V. Bhaskara Rao Magaly Gracias, Purbasha Saha, Vaibhavi Chittal,

Background: Azo dyes are xenobiotic compounds that have bioaccumulated in the environment due to escalated industrial development. These are hazardous in nature, possessing carcinogenic and mutagenic effects on human beings. Objectives: The perspective of the present study was to isolate and to determine azo dye (Reactive Orange-16) degrading potential of...

Journal: :health scope 0
sudabeh pourfadakari department of environmental health engineering, school of health, shiraz university of medical sciences, shiraz, ir iran; student research committee, shiraz university of medical sciences, shiraz, ir iran amir hossein mahvi department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, ir iran; national institute of health research, tehran university of medical sciences, tehran, ir iran; center for solid waste research, institute for environmental research, tehran university of medical sciences, tehran, ir iran; department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, ir iran. tel: +98-2188954914, fax: +98-2188950188

conclusions considering the simplicity and efficiency of zero valent iron powder, this method is recommended for removing azo dyes from aqueous environments. results the results of this research showed ph = 3 and contact time = 120 minutes, increasing the zvi dose from 200 to 5000 mg/l in 100 mg/l dye concentration, increased the adsorption efficiency from 36.78% to 97.57%. rr-198 removal follo...

2012
Qian Sun Dan Cui Haoyi Cheng Wenzong Liu Aijie Wang

In this study, we designed a membrane-free, continuous plug-flow baffled bioelectrocatalyzed reactor (PFB-BER) to enhance the degradation of azo dye containing wastewater. The efficiency of decolorizition of alizarin yellow R (AYR) was tested in such a bioelctrochemical system with acetate as carbon source. The influent containing AYR (100mg·L) and acetate (1000mg·L, 25mM PBS) was flowed into t...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده علوم 1389

چکیده ندارد.

Journal: :Journal of biotechnology 2001
M A Martins I C Ferreira I M Santos M J Queiroz N Lima

Azo dyes are important chemical pollutants of industrial origin. Textile azo dyes with bioaccessible groups for lignin degrading fungi, such as 2-methoxyphenol (guaiacol) and 2,6-dimethoxyphenol (syringol), were synthesised using different aminobenzoic and aminosulphonic acids as diazo components. The inocula of the best biodegradation assays were obtained from a pre-growth medium (PAM), contai...

Journal: :Environmental science and pollution research international 2013
Soon-An Ong Ohm-Mar Min Li-Ngee Ho Yee-Shian Wong

The objective of this study was to examine the effects of adsorbability and number of sulfonate group on solar photocatalytic degradation of mono azo methyl orange (MO) and diazo Reactive Green 19 (RG19) in single and binary dye solutions. The adsorption capacity of MO and RG19 onto the TiO₂ was 16.9 and 26.8 mg/g, respectively, in single dye solution, and reduced to 5.0 and 23.1 mg/g, respecti...

Journal: :Journal of environmental biology 2007
Goksel Demir H Kurtulus Ozcan Nese Tufekci Mehmet Borat

In this study, the removal of color, chemical oxygen demand (COD) and aromatic group from one of the azo dyes, Remazol Yellow RR Gran, had been carried out by using one of the white rot fungi, Phanerochaete chrysosporium. Experimental studies were performed in growth media containing different amounts of dye and glucose. Color measurements were done at 436nm wavelength using spectrophotometer w...

Journal: :Chemosphere 2003
M Adosinda M Martins Nelson Lima Armando J D Silvestre M João Queiroz

A screening using several fungi (Phanerochaete chrysosporium, Pleurotus ostreatus, Trametes versicolor and Aureobasidium pullulans) was performed on the degradation of syringol derivatives of azo dyes possessing either carboxylic or sulphonic groups, under optimized conditions previously established by us. T. versicolor showed the best biodegradation performance and its potential was confirmed ...

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