Treatment of dairy wastewater by electrocoagulation using A-U4G (2017-Al) alloy and pure aluminum as electrode material
Résumé
The electrocoagulation (EC) process is an efficient and low-cost system for the purification of wastewater. The aim of this work was to investigate the efficiency of two types of aluminum (Al) electrodes (Al alloy and pure Al electrodes) for the treatment of synthetic semi-skimmed milk wastewater. Turbidity, chemical oxygen demand (COD), and concentration of Al species were monitored during the experiments. The effect of various parameters, such as current density and type and nature of the electrode were examined. The results showed that Al alloy electrodes exhibited a higher efficiency than pure Al electrodes. A quasi-total reduction of turbidity and a removal of approximately58% of the COD were achieved within 24 min at pH 7 and a current density of 14.3 mA cm(-2). It was also observed that the removal performance was not affected by the state of the electrode surfaces (polished) under the same operating conditions.
Domaines
Chimie
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Aitbara et al-2021-Treatment of Dairy Wastewater.pdf (961.98 Ko)
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