Abstract:
The environmental industry has demonstrated an increasing interest in employing electrocoagulation (EC)
process to treat industrial wastewater/effluent for recycling/drinking purposes. An iron (Fe)/aluminum (Al)
plate-based batch recirculation electrocoagulation technology for wastewater treatment in the distillery industry
is discussed in this work. The impact of different operational parameters, including COD, wastewater pH, cur rent, inter-electrode spacing, combination of electrodes, recirculation flow rate, concentration of electrolytes,
and treatment duration on % color, % COD reduction efficiency, and energy consumption was examined. The
experimental outcomes demonstrated that, the color removal was 100 %, COD removal was 99.90 %, and energy
consumption was 7.73 kWh m−3 for COD of 3600 mg L−1, current of 0.56 Amp, combination of electrodes of Fe/
Fe, inter-electrode spacing of 1 cm, wastewater pH of 7, flow rate of 15 L h−1, concentration of electrolytes of
5 g L−1, and treatment time of 180 min, respectively. It was found that, a longer treatment period, higher
electrolyte concentrations and current, lower COD concentrations and recirculation flow rates, Fe/Fe electrode
pairings, a pH of 7, and a smaller inter-electrode spacing all contributed to increased % COD reduction effi ciency. The quantity of solid sludge formed were studied with the help of operational parameters, and the results
were reported. Under the optimized process conditions, the wastewater treated can be fully recovered as clean
water. As a consequence of this, the results of the experiments have shown that the batch recirculation elec trocoagulation process has the potential to be a more promising solution to the problem of eliminating con taminants from wastewater and industrial effluent
