Experimental study demonstrates urea removal from wastewater using electrocoagulation with iron and copper electrodes, suggesting electrocoagulation outperforms conventional chemical coagulation.
The ability to remove urea from wastewater was investigated using an electrocoagulation process (EC). Two electrodes were examined: iron and copper. Several parameters were investigated to demonstrate the performance of the system. These parameters include voltage, electrolyte type, and the gap distance. Results showed that the removal efficiencies reached 40.15% at 6 V for the copper electrode and 51% at 12 V for the iron electrode, after 90 min. In a comparison of EC with chemical coagulation, EC was found to perform better. Fourier transform infrared and scanning electron microscopy were performed to investigate the characteristics of the produced sludge and the electrode surface. The electric energy consumption for iron and copper electrodes were 112.8 and 32.4 kWh/m 3 , respectively. Results showed that more iron electrode was consumed than copper electrode under the same conditions.
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Mamdouh et al. (2021) studied this question.
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