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David Nartey Obemah

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Open access Sep 2026

On-farm wastewater treatment for irrigation using biochar from local agro-residues in Obuasi, Ghana

This study evaluated the effectiveness of a decentralized, on-farm wastewater treatment system using locally generated rice husk biochar for safe agricultural irrigation reuse in Diewuoso-Obuasi, Ghana. The system, a two-stage downflow filtration system, treated raw municipal wastewater over 10 days. Results showed sig...

Lydia Otoo Amponsah, David Nartey Obemah, Belinda Lee Quayson et al. · 0 citations

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