Girma, J. , Kemal, A. and Nigussie, A. 2023. EFFECT OF TOXIC HEAVY METALS AT DOWNSTREAM IRRIGATION OF WASTEWATER TREATMENT PLANT. Zede Journal of Ethiopian Engineers and Architects. 41, (Aug. 2023), 48–59. DOI:https://doi.org/10.20372/zede.v41i.8623.