The 2025 National IP Showdown
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Utilizing waste-derived biochar offers opportunities for emission reduction , waste management, and sustainability in energy production.
The 2025 National IP Showdown that took place on 6 March 2025, hosted by SAICE at the University of Witwatersrand. Bandile Makha and Monty Thovhakale were selected to represent the School of Civil & Environmental Engineering and competed against two other universities. They presented their research which explores replacing coal with biochar in South African coal-fired power plants to reduce emissions and environmental impact.
Biochar, produced from sewage sludge, woodchips, and their mixture through pyrolysis at 300–600°C, showed lower SO? _emissions, reduced ash and volatile content, and high energy efficiency. Utilizing waste-derived biochar offers opportunities for emission reduction, waste management, and sustainability in energy production.
The experience reinforced their passion for research and highlighted the importance of effectively communicating complex engineering concepts. It provided them a platform to engage with industry professionals, gain insights, and refine our work. It was a most valuable experience for them.