نتایج جستجو برای: textile dyes

تعداد نتایج: 31290  

2005
N. MATHUR P. BAKRE

In Rajasthan state particularly, textile mills represent an important economic sector. Pali district in Rajasthan has got largest number of textile industries in the State i.e.989 units, mostly engaged in cotton and synthetic textile printing and dyeing. These industries liberate a variety of chemicals, dyes, acids and alkalis besides other toxic compounds like heavy metals, which are known for...

2002

Clothing textiles come under the category of other commodities pursuant to the Foods and Other Commodities Act. They require neither notification nor marketing authorisation which means that the public authorities do not have information about individual textile auxiliaries or dyes used. The working group "Health Assessment of Textile Auxiliaries and Dyes" within the working group "Textiles" of...

2015
Zorawar Singh

Textile industry is one of the biggest industries of the world. Workers engaged in the textile industries around the world are exposed to different sets of chemicals including dyes, solvents, finishing chemicals and metals including Cu, Cr, Ni etc. Many of these chemicals including dyes have been identified as carcinogenic to humans. The exposure of the workers to such carcinogenic chemicals re...

A. Malviya D. Jaspal I. Tyagi, S. Khamparia, V.K. Gupta,

Water plays a vital and essential role in our ecosystem. This natural resource is becoming scarce, making its availability a major social and economic concern. Use of a large variety of synthetic dyes in textile industries has raised an hazardous environmental alert. About 17 - 20% of freshwater pollution is caused by textile effluents. These effluents are recalcitrant to biodegradation and cau...

2013

Textile industry comprises of dry mechanical and wet chemical processing,wet chemical process comprises of bleaches, dyeing , printing, & finishing. Dyeing is art of colouration to textiles.Dye get transferred to textile during dyeing. Dyeing operation is performed by the reaction between fiber and dyes. Some dyes are water soluble and some are water insoluble. Some fiber has affinity to dye; s...

2009
Ana M. Cubillas Olga M. Conde Pedro Anuarbe Monica Gutierrez Vicente Martinez Jose M. Lopez-Higuera

In this paper, an extrinsic optical fibre sensor (OFS) for the quantitative determination of dyes used in the textile industry is presented. The system proposed is based on absorption spectroscopy and multivariate calibration methods to infer the concentration of different textile dyes. The performance of the sensor has been successfully assessed using calibrated dyes, with a very good correlat...

2004
Yongjie Miao

Wastewater from the textile industry can contain a variety of polluting subst-ances including dyes. Increasingly, environmental legislation is being imposed to control the release of dyes, in particular azo-based compounds, into the enviro -nment. The ability of microorganisms to decolourise and metabolise dyes has long been known, and the use of bioremediation based technologies for treating t...

2015
Vinayak H. Lokhande Subhash Kudale Ganesh Nikalje Neetin Desai Penna Suprasanna

In this study, we report phytoremediation of textile dyes using hairy roots derived through Agrobacterium rhizogenes (NCIM 5140) infection of in vitro leaf and stem explants of a halophyte Sesuvium portulacastrum (L.) L. Leaf explants showed higher frequency of hairy root induction (70%) than stem explants (30%), and maximum number of roots (leaf 42.3 ± 2.4 and stem 50.3 ± 1.7). Transformed nat...

2015
Sujata Saxena

Dyes derived from natural materials such as plant leaves, roots, bark, insect secretions, and minerals were the only dyes available to mankind for the coloring of textiles until the discovery of the first synthetic dye in 1856. Rapid research strides in synthetic chemistry supported by the industrialization of textile production not only led to the development of synthetic alternatives to popul...

2014
Sathish Joshua Amarnath

Studies were carried out on the decolorization of azo dyes by Bacillus species from effluent of textile industries. About 10 bacterial strains were isolated from the effluent of textile industries, Bacillus sp. showed remarkable ability in decolorizing the widely utilized azo dyes. Phenotypic characterization and phylogenetic analysis based on 16S rDNA sequence comparisons indicate that these s...

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