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Adsorption behavior of chitosan composite fly ash (CCF) in adsorption of reactive brilliant blue wastewater were investigated. CCF was characterized by means of SEM and FTIR. Results showed that particle size of CCF is about 2–15µm. The isothermal adsorption follows the isothermal adsorption model of Langmuir. Enthalpy change at adsorption tempertures in range of 288–318K is −21.97 kJ mol−1, which...
In this paper, the degradation efficiency, effect factors and kinetics of dye Levafix Navy in UV/H2O2 system have been investigated. The results show that UV/H2O2 system has a high activity on degradation of dye Levafix Navy with so little H2O2 on so concentrated dye solution, and the photo decomposition reaction of the dye is concurrent besides the photo-oxidative degradation. The dye degradation...
The present work focuses on the Microbial degradation of three textile azo dyes, Acid Blue 113(AB113), Acid Black 24(ABK24) and Mordant Black 17 (MB17) by thirteen bacterial isolates as well by their consortia. Thirty five bacterial isolates were isolated from textile dyeing industry effluents. Proficient and rapid dye degradation was identified in thirteen isolates. Microbial consortia were developed...
Dyes are natural compounds that make the world more beautiful through coloured substances. However, the release of coloured wastewaters represents a serious environmental problem and a public health concern. Colour removal, especially from textile wastewaters, has been a big challenge over the last decades, and up to now there is no single and economically attractive treatment that can effectively...
A strain, Enterobacter sp.S080, was isolated from a lab-scale modified AAO system treating dye-containing wastewater. This strain exhibited a evident color-removal capability when tested against Reactive Black 5under anaerobic condition. More than 85% of Reactive Black 5 was removed within 25h at 50 mg/L dye concentration under anaerobic conditions. Additionally, physiological-biochemical characteristics...
In this paper, dielectric-barrier discharge plasma was applied to the decolorization and degradation of the azo dyes C.I.Acid Yellow 17 and C.I.Direct Red 31. The experimental results have shown that the decolorization and degradation percentage increases with rising applied voltages and current intensity and decreasing air-gap distances. When the air-gap distances were 4 mm and the voltage was 17...
The degradation of an azo dye crystal violet by UV/Fenton oxidation process in the presence of heteropolyacid solution has been investigated. The degradation rate is strongly dependent on the pH, initial concentrations of the dye, Fe2+, H2O2 and phosphotungstic acid. The effect of these parameters has been studied and the optimal reacting conditions were experimentally determined. It was found to...
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