Effect of dye auxiliaries on color and COD removal from simulated reactive dyebath effluent by electrocoagulation

Treatment of phthalic acid esters by electrocoagulation with stainless steel electrodes using dimethyl phthalate as a model compound

“…On the other hand, maximum TOC removal was obtained at 1500 mg/L chloride concentration and TOC removal reverted to 50%, the level that was obtained at 1000 mg/L chloride concentration upon increasing the concentration to 3000 mg/L. The experimental results obtained in this study are in accordance with the literature data which reported the variable effect of chloride ion on the organic matter removal [17,18,23].…”

“…These processes have been applied to a variety of industrial wastewaters e.g. textile wastewater [14][15][16][17][18][19], alcoholic drinks wastewater [20], heavy metal containing wastewater [21], metal plating wastewater [22][23], oily wastewater [24], leather tanning wastewater [25], baker's yeast wastewater [26], cattle-slaughterhouse wastewater [27], pharmaceutical and cosmetic production wastewater [28], and poultry manure wastewater [29]. Electrocoagulation has also been employed for the treatment of specific organic and inorganic pollutants such as lignin and phenol [30], monoazo acidic dyestuffs [31,32], pesticides [33], fluoride [34,35], arsenic [36], and indium [37].…”

Electrocoagulation in Wastewater Treatment

“…Kabdaşlı et al noticed that color abatement can use stainless steel electrodes for electrocoagulation of reactive dyebath effluent. The most effective treatment was using Na 2 CO 3 for color and COD removals, while NaCl concentration solved the problems when using Na 2 CO 3 by better enhancing color and COD removal efficiencies when pH was above 11 for coagulation and adsorption [32]. Jain et al concluded that azo reactive dye, a component from color paper, plastic, food, and pharmaceutical products are difficult to treat with conventional treatment methods due to water solubility and polar compounds [33].…”

Removal of lead from aqueous solutions by electrocoagulation: isotherm, kinetics and thermodynamic studies

“…From the results, it is found that the removal efficiency of the lead is not much affected by the presence of carbonate below 2 mg/L. Significant reduction in removal efficiency observed above 2 mg/L of carbonate concentration is due to the passivation of anode, resulting the hindering of the dissolution process of anode (Kabdasl et al 2009). …”