Effect of activated carbon fiber anode structure and electrolysis conditions on electrochemical degradation of dye wastewater

Effect of graphite felt and activated carbon fiber felt on performance of freshwater sediment microbial fuel cell

“…The ACFF has excellent adsorption capabilities for wastewater treatment. 24 Thus, when ACFF used as a cathode in SMFC, it can adsorb more dissolved organic matter from sediments released in the upper solution. Excessive organic matters entering the biocathode led to considerable growth of aerobic heterotrophic bacteria, restricting oxygen supply to the cathodic biofilm 25 and reducing the rate of cathode oxygen reduction, resulting in lower output power.…”

Dye Waste Treatment

“…The electrochemical degradation of Alizarin Red S using an activated carbon fiber (ACF) felt as an anode was investigated [114]. Results indicated that increasing current density would increase dye removal efficiency.…”

Removal of Reactive Black 5 by zero-valent iron modified with various surfactants

“…The charge of the ZVI surface also changes from positive to negative with an increase in the solution pH [38], which diminishes the sorption of RB5 molecules onto ZVI surfaces. No pH change during decolorization was found when initial pH of RB5 solution was maintained in alkaline range (pH [8][9][10]. Therefore, the optimized standard condition for conducting the reductive degradation of RB5 is in an acidic pH.…”

“…Thus, effluents containing dye molecules must be treated before their discharge into water bodies to minimize the threat to the environment [3]. Many processes are employed to remove dye molecules from colored effluents, and the treatment methods can be divided into three categories: (i) physical methods such as adsorption [4][5][6], membrane filtration [7], and ion exchange [8]; (ii) chemical methods such as chemical oxidation [9], electrochemical degradation [10], and ozonation [11]; and (iii) biological degradation [12]. The main disadvantage of physical methods is that they simply transfer the dye molecules to another phase rather than destroying them, and they are effective only when the effluent volume is small [13].…”