Mesongolo, L.C., Eyul’anki Dieudonné, M., Thierry Tabou , T., Crispin Kyela , M., SEKE VA, M. and Makaly Emmanuel, B. 2026. Heavy metal removal from hospital effluents at the University Clinics of Kinshasa using a UASB reactor: A comparative analysis under optimised and non-optimised operational conditions . Orapuh Journal. 7, 2 (Jan. 2026), e1411. DOI:https://doi.org/10.4314/orapj.v7i2.11.