Performance Evaluation of Pellet and Powdered Activated carbon-biochar in a Gravity-Driven Filter for Municipal Wastewater Treatment

This study evaluated the performance of pellet activated carbon and powdered activated carbon–biochar in a gravity-driven filter for municipal wastewater treatment. Based on the experimental readings, the powdered activated carbon–biochar filter showed more favourable results for turbidity, TDS, and DO, while both filters exhibited pH values within the reported range. The COD values recorded for the two filters ranged approximately from 50 to 125 mg/L, indicating variations in treatment performance. Overall, the findings suggest that powdered activated carbon–biochar has potential for improving selected wastewater quality parameters. However, further testing under comparable flow conditions and verification of initial wastewater characteristics are required to establish the relative treatment efficiency of both filtration media.

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