Journal ArticleDOI
Electrochemical Degradation of Remazol Black B Dye Effluent
Poppana Antony Soloman,Chiya Ahmed Basha,Manickam Velan,V. Ramamurthi,Kandasamy Koteeswaran,Natesan Balasubramanian +5 more
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TLDR
In this article, the effect of current density, supporting electrolyte concentration, electrolysis duration, specific electrode surface and fluid flow rate on pollutant removal and energy consumption was critically evaluated.Abstract:
This study focused on the electrochemical degradation of hydrolyzed Remazol Black
B (CI Reactive Black 5), a common diazo reactive dye, in aqueous solution. In the presence
of various auxiliary dye chemicals, a typical Remazol Black simulated exhausted
dyebath liquor was treated electrochemically in various basic electrochemical reactor
configurations such as batch, batch recirculation and single pass systems. The effect of current density, supporting electrolyte concentration, electrolysis duration, specific
electrode surface and fluid flow rate on pollutant removal and energy consumption
performance of the systems was critically evaluated. Batch studies show the following
operating parameters, current density: 2.5 A/dm2, electrolysis duration: 6 h,
and supporting electrolyte concentration: 3 g/L, were optimal for good overall performance
of the system. Color removal was complete by 3 h of treatment for all combinations
of parameters studied. The pollutant removal performance of the batch
recirculation system was found to have improved considerably by increasing the flow
rate. Performance of the batch recirculation system was comparatively better than
the other rector configurations studied, with respect to capacity utilization and
energy consumption.read more
Citations
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Book ChapterDOI
Textile Organic Dyes – Characteristics, Polluting Effects and Separation/Elimination Procedures from Industrial Effluents – A Critical Overview
Zaharia Carmen,Şuteu Daniela +1 more
TL;DR: The residual dyes from different sources (e.g., textile industries, paper and pulp industries, dye and dye intermediates industries, pharmaceutical industries, tannery, and Kraft bleaching industries, etc.) are considered a wide variety of organic pollutants introduced into the natural water resources or wastewater treatment systems as mentioned in this paper.
Journal ArticleDOI
Metal oxide-coated anodes in wastewater treatment
TL;DR: The developments in the fabrication, application, and performance of metal oxide anodes in wastewater treatment are compiled and the preparative methods and mechanism of oxidation of organics on the metal oxideAnodes are summarized.
Journal ArticleDOI
Dye Removal, Energy Consumption and Operating Cost of Electrocoagulation of Textile Wastewater as a Clean Process
TL;DR: In this paper, the efficiency of electrocoagulation treatment process using aluminum electrodes to treat synthetic wastewater containing Reactive Red198 (RR198) was studied and the effects of parameters such as voltage, time of reaction, electrode connection mode, initial dye concentration, electrolyte concentration, and inter electrode distance on dye removal efficiency were investigated.
Journal ArticleDOI
Decolorization of azo dyes (Direct Blue 151 and Direct Red 31) by moderately alkaliphilic bacterial consortium.
TL;DR: The decolorization efficiency of mixed dyes was improved with yeast extract and sucrose, which were used as nitrogen and carbon sources, respectively, and an alkaliphilic bacterial consortium can be used in the removal of azo dyes from contaminated saline environment.
Journal ArticleDOI
Color Removal from Synthetic Textile Wastewater by Sono-Fenton Process
TL;DR: In this paper, the effects of some operating parameters which are the initial pH of the solution, the initial concentration of Fe 2+, H 2 O 2, and the dye, temperature, and agitation speed on the color and chemical oxygen demand (COD) removals have been investigated.
References
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Journal ArticleDOI
The removal of colour from textile wastewater using whole bacterial cells: a review
TL;DR: The use of whole bacterial cells for the reduction of water-soluble dyes present in textile dyeing wastewater has been investigated in this paper, with a focus on the use of bacteria-polymer composites for the removal of colour from reactive dye effluents.
Journal ArticleDOI
Decolorization of Wastewater
TL;DR: In this article, the background information of dye molecules and dye waste characteristics are described and the methods for color measurements and standards are discussed, and different techniques including almost all the known physical, chemical and biological techniques are described for decolorization.
Journal ArticleDOI
Microbial decolourisation and degradation of textile dyes
Geoffrey McMullan,C Meehan,A Conneely,N. Kirby,T Robinson,Poonam Singh Nee Nigam,Ibrahim M. Banat,Roger Marchant,WE Smyth +8 more
TL;DR: This review investigates the mechanisms by which diverse categories of microorganisms, such as the white-rot fungi and anaerobic bacterial consortia, bring about the degradation of dyestuffs.
Journal ArticleDOI
Separation of pollutants from restaurant wastewater by electrocoagulation
TL;DR: In this paper, the characteristics of restaurant wastewater were investigated and high oil and grease contents were detected, and the optimum charge loading and current density were 1.67-9.95 F/m3 wastewater and 30-80 A/m2 depending on the wastewater tested.
Journal ArticleDOI
Predicting azo dye toxicity
Mark A. Brown,Stephen C. De Vito +1 more
TL;DR: Three different mechanisms for azo dye carcinogenicity were identified, all involving metabolic activation to reactive electrophilic intermediates that covalently bind DNA.