Author: KURUJYIBWAMI Célestin, Kurujyibwami, C´elestin, Mahara, Isidore, Nyagahakwa, VenusteCollege: College of Science and Technology(CST)Research Discipline: SciencesPublication type: ArticlePublisher: AJOLVolume: NAIssue: NAJournal Name: Rwanda Journal of Engineering, Science, Technology and Environment