Nhubu, Trust (PhD)
Trust Nhubu obtained a BEng Honours in Chemical Engineering from the National University of Science and Technology, Zimbabwe, in 2007. In 2015, he obtained an MSc in Integrated Water Resources Management from the University of Zimbabwe. In 2017, he registered for doctorate studies in Chemical Engineering at the University of Johannesburg. He received the Early Career Scientist Award from the National Geographic Society and the 2017 Life Cycle Award with subsequent recognition with the Life Cycle Assessment Certificate of Excellence from the World Resources Forum. He published two articles in ISI-listed journals and seven conference papers during his doctoral research. His research study compared the associated acidification, eutrophication, global warming and human health impact potentials of six municipal solid waste management (MSWM) options to determine the least impactful option for possible future implementation in Harare, Zimbabwe. Previous studies have not attempted life-cycle assessment of MSWM options in Harare. The candidate developed six MSWM options, assessed their associated environmental impacts using the life- cycle assessment (LCA) methodology and reviewed the barriers and limitation to the implementation of the determined least impactful MSWM option. Recipe 2016 Endpoint method, SimaPro 8.5 software together with its associated 8.5.2 database and Ecoinvent v3 were used for the LCA. The candidate also undertook sensitivity analysis to assess the materials recovery levels that would yield zero impact potentials. The research suggested the option that combined anaerobic digestion of biodegradables, incineration and recovery of 80% and 20% of non-biodegradables, respectively, the least impactful MSWM option.
Supervisor: Prof E Muzenda Co-Supervisors: Prof C Mbohwa
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