Cristina Trois

Environmental Engineer / Stellenbosch University, South Africa
Prof. Cristina Trois is the Director of the Centre for Renewable and Sustainable Energy Studies at Stellenbosch University, in South Africa. Full Professor in Environmental Engineering (since 2015), with a degree in Environmental Engineering and a PhD in Geo and Environmental Engineering. Former Dean of Engineering (2012-2018) and former DSI/NRF SARCHI Chair in Waste and Climate Change (2018-2023) at the University of KwaZulu-Natal (RSA).
Her main fields of expertise are: Environmental Sanitary Engineering, Waste and Resources Management, Bioenergy, Waste to Energy, Biogas and bio-hydrogen from organic waste, Systems Modelling and Decision-support tools, Carbon emission control from zero waste in Africa and developing countries, Circular Economy.
Prof Trois is author of over 150 peer-reviewed publications and Series Editor for Springer (Nature) for the Series “Waste as a Resource”, Co-editor of the Springer book “Waste Management in Developing Countries”. President of the IWWG (International Waste Working Group) 2025 – 2026. Prof. Trois has over 25 years of working experience in Environmental Sanitary Engineering and has been the principal investigator as well as the project coordinator of many multi-million feasibility and R&D waste management projects with municipalities in South Africa and Africa. She is the developer of the WROSE TM Model /Decision-support Tool, and advisor for climate services, waste and climate change, waste to energy projects,
CDM projects to the South African Government and inter-governmental organisations.