نتایج جستجو برای: reactive textile dyes
تعداد نتایج: 186386 فیلتر نتایج به سال:
Treatment of effluents containing phenols such as textile dyes with fungal laccases is usually limited to the acid to neutral pH range and moderate temperatures. Here we demonstrate for the first time that spore-bound laccases which are stable at high temperatures and pH values can be used for phenolic dye decolorisation. Laccase containing spores from Bacillus SF were immobilized on alumina pe...
Removal of synthetic dyes is one of the main challenges before releasing the wastes discharged by textile industries. Biodegradation of azo dyes by alkaliphilic bacterial consortium is one of the environmental-friendly methods used for the removal of dyes from textile effluents. Hence, this study presents isolation of a bacterial consortium from soil samples of saline environment and its use fo...
The white rot fungus Trametes versicolor was applied to the decolourisation of three synthetic textile dyes in the presence and absence of glucose. Different initial dye concentrations were tested and approximately 97% decolourisation was achieved. It was found that fungal metabolism induced by the glucose as well as the pH play an important role in the decolourisation process. This treatment w...
Indian textile industry occupies a unique position in the Indian economy. Over the period, it has gone through several changes. In the present paper, an attcmpt has been made to present an overview of Indian textile industry in terms of its structure, associated problems, its impact on environment, pollution control strategies, German ban on azo dyes, response of textile ministry to cope with t...
Thousands of workers are employed in textile industries under different job categories including dyeing, printing, finishing, cutting, weaving and spinning. The textile industry workers are exposed to a number of chemicals including dyes, solvents, optical brighteners, finishing agents and numerous types of natural and synthetic fibre dusts which affect their health. In this paper an attempt ha...
Laccases have been used for the decolorization and detoxification of synthetic dyes due to their ability to oxidize a wide variety of dyes with water as the sole byproduct. A putative laccase gene (LacTT) from Thermus thermophilus SG0.5JP17-16 was screened using the genome mining approach, and it was highly expressed in Pichia pastoris, yielding a high laccase activity of 6130 U/L in a 10-L fer...
Sodium hydrosulfite is conventionally used for the color stripping of reactive dyes in textile industry. However, research has been focused on eco-friendly processes to reduce wastewater generation recent years. This study aimed at estimating efficacy ozone according dyes’ chromophore groups. The dyed cotton-knitted fabric with three that have phthalocyanine (Reactive blue 21), diazo black 5) a...
The photocatalytic degradation of two commercial textile azo dyes, namely C.I Reactive Black 5 and C.I Reactive Red 239, has been studied. TiO(2) P25 Degussa was used as catalyst and photodegradation was carried out in aqueous solution under artificial irradiation with a 125 W mercury vapor lamp. The effects of the amount of TiO(2) used, UV-light irradiation time, pH of the solution under treat...
Textile industry is providing one of the most basic needs of the people and maintains sustained growth for improving quality of life. The Indian textile industry has been undergoing a rapid transformation and is in the process of integrating with the World textile trade and industry. The contribution of textile industries to the Indian economy is manifested in terms of its contribution to the i...
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