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23 February 2023 | Story Kekeletso Takang | Photo Supplied
Michelle De Lange
UFS School of Accountancy Lecturer, Michelle de Lange, aced the recent Chartered Global Management Accountants Board exam, obtaining second position.

Michelle de Lange, accredited Accounting Lecturer in the School of Accountancy at the University of the Free State (UFS), finished second in the world at the recent Chartered Global Management Accountant (CGMA) Board Examination. With only one point between De Lange and the first candidate, she aced the challenging exam.    

Having obtained fourth position in the world for the 2019 CIMA Gateway exam, De Lange was determined to outdo herself.

The Chartered Institute of Management Accountants (CIMA) is the world’s largest global professional management accounting body to offer training and qualification in management accountancy. As designation holders, members get to showcase their skills and experience to a global audience, while upholding professionalism and promoting continuous learning. 

De Lange, who holds another professional accreditation from the South African Institute of Chartered Accountants (SAICA), coordinates the BCom Honours in Management Accounting programme, which is CIMA-aligned for postgraduate students. For De Lange, the greatest reward is the realisation of the impact she is making on her students through strategic vision.  

Having worked in the private sector and later joining the UFS as an Assistant Director at Finance back in 2016, De Lange believed that something was missing; that there was more to give. In 2018 she moved to the School of Accountancy, taking on her new role as Lecturer. “I wanted to make a difference and be significant. This motivated my move to lecturing,” she says. 

Her passion for teaching extends beyond the lecture hall. De Lange pays it forward by supporting students through a hands-on approach and ensuring that assessments are CIMA-aligned. 

The School of Accountancy in the Faculty of Economic and Management Sciences is proud of De Lange and her achievements. 

Becoming a CGMA requires discipline. De Lange is grateful for the support she received in preparation for the board exam, in particular from her husband Francois, who was “always understanding and encouraging”. 

News Archive

UFS venture cleans up acid mine drainage
2015-07-06

The system that puts oxygen back into the water.

Photo: Supplied

South Africa is one of the most important mining countries in the world, beginning in the 1870s. Although the mining industry has been responsible for significant development and employment, it pollutes the environment and waters sources. Through the joint effort of a well-known mining company, the University of the Free State, and the Technology Innovation Agency (UFS/TIA) SAENSE Group, a new treatment for Acid Mine Drainage (AMD) has been developed.

The system treats the major contaminants found in acid mining wastewater effectively.  
 
The UFS remediation systems use a reservoir tank into which the AMD is pumped. The water then flows passively (without using energy) to the Barium Carbonate Dispersed Alkaline Substrate (BDAS) system. The metals and anions in the AMD react chemically with the barium carbonate and precipitate (form solids). The solids stay in the tank while the clean water is released.

The efficacy and applicability of the research was demonstrated on site in Belfast, Mpumalanga where the team constructed a pilot plant in July 2014. This patented technology has treated 1 814 400 litres of Acid Mine Drainage to date with an outflow water quality that satisfies the South African National Standards (SANS) 241:2006 & 2011 regulations for drinking water.   

Rohan Posthumus from the (UFS/TIA) SAENSE Group said: “At this stage, we do not recommend that the water should be used as drinking water, but certainly it can lower water usage in mines while finding application in dust suppression of washing processes. The team would like to complete a full characterisation of the final released water. There are currently no toxic by-products formed, and even very basic filtration can make the outflow drinking water.”

Prof Esta van Heerden’s research group from the Department of Microbial, Biochemical, and Food Biotechnology has been working on AMD research for some time, but the development of the BDAS system was started in 2013 by post-doctoral student, Dr Julio Castillo, and his junior researcher, Rohan Posthumus.

The data from the BDAS system have led to two publications in peer-reviewed journals as well as a registered patent.

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