It was found to be not complying with the Ethiopian environmental protection authority discharge limit. Some
study revealed that there was an adverse impact on the physiochemical and bacteriological characteristics of the
receiving rivers as a result of the discharge of untreated and inadequately treated effluents from these
slaughterhouse industries. There is a need of establishment and improvement of slaughterhouse wastewater
treatment system, as well as an intervention of regulatory bodies to ensure production of high quality treated
final effluents by the slaughterhouse industries.