نتایج جستجو برای: textile dyes

تعداد نتایج: 31290  

Journal: :iranian journal of public health 0
m gholami s nasseri mr alizadeh fard a mesdaghinia f vaezi a mahvi

dye removal from effluents of textile industries of iran was investigated through biodegradabilitymethod and membrane technology . basic, reactive,disperse and acidic dyes were selected, based onusage rate in iran. the zahen - welenze method (iso 9888) was applied to study the biodegradabilityof dyes. results showed the final cod and dye removal (%r) as (%61,% 57), (%73, %76), (%25, %14),and (%...

Journal: Nanochemistry Research 2016

This paper reports application of cetyltrimethylammonium bromide (CTAB) coated magnetite nanoparticles (Fe3O4 NPs) as a novel adsorbent for removal of two types of disperse dyes, including disperse red 167, and disperse blue 183, from wastewater of textile companies. The effect of parameters including type of surfactant, pH of solution, surfactant concentration, and amount...

Journal: :Regulatory toxicology and pharmacology : RTP 2014
Beat J Brüschweiler Simon Küng Daniel Bürgi Lorenz Muralt Erich Nyfeler

Azo dyes in textiles may release aromatic amines after enzymatic cleavage by skin bacteria or after dermal absorption and metabolism in the human body. From the 896 azo dyes with known chemical structure in the available textile dyes database, 426 azo dyes (48%) can generate one or more of the 22 regulated aromatic amines in the European Union in Annex XVII of REACH. Another 470 azo dyes (52%) ...

Journal: :Chemical communications 2015
J Salabert R M Sebastián A Vallribera

Water-repellent, self-cleaning and stain resistant textiles are of interest for industrial applications. Anthraquinone reactive dyes were covalently grafted onto cotton fabric surfaces obtaining bright colors with good wash-fastness properties and giving rise to breathable superhydrophobic textiles with self-cleaning properties.

2015
Ishita Sinha

Abstract--Textile dying industry effluents are highly toxic in nature and it contains a large number of complex metal dyes. Many dyes used in textile industries are stable to light and resistant to aerobic digestion. Thus removal of coloured waste from industrial dye effluent is a most perplexing problem to such industries and the environment. On the other hand fly ash is a major pollutant gene...

2016
Abdollah Hajivandi Sima Farjadfard Bahman Ramavandi Samad Akbarzadeh

In this data article, we introduce data acquired from new adsorbent, bi-metalized chitosan particle that is successfully synthesized and applied to remove the orange II dye, an azo dye, from textile wastewater. The adsorbent was meso- and macro-porous material with BET surface area of 12.69 m(2)/g and pHzpc 6.6. The simulated textile-wastewater can be significantly treated using a relatively lo...

Journal: Nanochemistry Research 2016

In this research we have developed a treatment method for textile wastewater by TiO2/SiO2-based magnetic nanocomposite. Textile wastewater includes a large variety of dyes and chemicals and needs treatments. This manuscript presents a facile method for removing dyes from the textile wastewater by using TiO2/SiO2-based nanocomposite (Fe3O<su...

2012
Yongjing Wang Dagui Chen Yandi Wang Feng Huang Qichang Hu Zhang Lin

Water pollution caused by industrial organic compounds is a serious global environmental problem. In some developing countries, the wastewater discharged from the textile industry is estimated to be more than one billion tons annually. The dyes in the discharge usually contain functional groups that could lead to high toxicity, i.e. the aromatic amine groups. Some dyes are resistant to light, h...

2012
Lamia Ayed Amina Bakhrouf

Considering both the volume and the effluent composition, the textile industry wastewater is rated as the most polluting among all industrial sectors. Important pollutants are present in textile effluents; they are mainly recalcitrant organics, colour, toxicants and inhibitory compounds (Khelifi et al., 2008). Textile industries however, have caused serious environmental problems because of the...

ژورنال: طلوع بهداشت یزد 2014
بذرافشان, ادریس, رضایی , محبوبه, کرد مصطفی پور , فردوس,

Introduction: Dyes are one of the most important existing pollutants in textile industrial wastewater. These compounds are often toxic, carcinogenic, teratogenic, and non- biodegradable. Carcinogenic and mutagenic potential of some azo dyes as a category of common dyes in different types of industries has been reported. Reactive red 198 is one of the azo dyes that are currently used in the text...

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