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Dye wastewater is representative of highly colored effluent that is resistant to biodegradation and should be decolorized before discharge. The investigation into the decolorization and degradation of simulated dye wastewater containing the azo dye C.I. Acid Orange 7 (AO7) with simultaneous electricity generation in microbial fuel cells (MFCs) is described. Electrons obtained from organics oxidation...
Hydroxypropyl cellulose aqueous solution forms a cholesteric liquid crystal phase and is colored by a selective reflection. The color can be changed by applied voltage. Although many tiny bubbles which disturb current conduction are generated at a cathode electrode, it can be suppressed by a current control. A container of the HPC solution affects the selective reflection effect. A HPC solution in...
In this study, decolorization and chemical oxygen demand (COD) reduction of coking wastewater by electrocoagulation process has been investigated. Effects of operating parameters, such as current density, pH of solution, electrolyte concentration and hydraulic residence time (HRT) on decolorization by continuous electrocoagulation were further studied in order to optimize process performance. The...
In this paper, the decolorization of simulated rhodamine B dye wastewater was investigated using a three dimensional electrode reactor with granular activated carbon(GAC) loaded with manganese oxide (MnOx/GAC) as the particle electrode. The decolorization ratio by two-dimensional electrode, traditional three-dimensional electrode and MnOx/GAC three-dimensional electrode method was compared respectively,...
The electrochemical oxidation decolorization of the azo dye wastewater containing Acid Red G (5-acetylamino-4- hydroxy-3-phenylazo-naphthalene-2,7-disulfonic sodium) was investigated. The effect of the operating parameters, such as applied voltage, dye concentration, electrolyte concentration and temperature, on the dye wastewater decolorization efficiency was analyzed. The reaction dynamics equation...
We present a multilayer organic-light-emitting-diode design which allows total control of the emitted color (including white emission) through the accurate modification of a yellow ultrathin emitter position and thickness in a blue matrix.
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