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The effect of voltage on polypropylene microplastics removal by electrocoagulation process using Fe electrode

ESTEEM Academic Journal 2024 2 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Norfaezatul Alysa Othman, Norain Isa, Nurulhuda Amri, Nor Aimi Abdul Wahab, Nurulhuda Bashirom

Summary

This study tested electrocoagulation — running an electrical current through wastewater using iron electrodes — as a method to remove polypropylene microplastics, finding that 20 volts provided the best balance of removal efficiency and cost. The results add to growing evidence that electrocoagulation is a viable treatment option for filtering microplastics out of wastewater before it is discharged into rivers and oceans.

Polymers
Study Type Environmental

This study investigates the effect of voltage on the removal of polypropylene microplastics (PPMPs) from artificial wastewater via an electrocoagulation (EC) process using iron (Fe) electrodes. The effect of the voltage was investigated by conducting multiple continuous flow experiments at three different voltage values (10, 20, and 30 V). The findings demonstrated that the turbidity value increased gradually as the initial voltage increased, from 6.67 NTU at 10 V to 74.37 NTU at 30 V. In this EC process, in which Fe electrodes are utilized to remove the PPMPs, it is believed that 20 V provides optimal support. Kinetic studies showed that the process followed a first-order kinetic model with a kinetics rate constant (k) of 0.0143 min-1 and a coefficient of determination (R2) of 0.9702. The findings demonstrated that voltage is a significant parameter in the EC process employing Fe electrodes to remove PPMPs from wastewater.

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