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SASL Star: Lerato Sheila Thamahane

22 September 2021 | Story Michelle Nöthling | Photo Supplied

Lerato Thamahane may be able to speak and understand all nine of South Africa’s official African languages, but it is a tenth language she is devoting her life to: South African Sign Language (SASL).

With nearly ten years’ experience as a SASL interpreter in several settings – ranging from the medical and mental-health fields to that of conferences and Deafblind interpreting – Lerato is living her life’s purpose. “I regard myself as a member of the Deaf community and a servant at the same time.”

Lerato lives by the principle that the more perspectives she gains on the world, the better service as an interpreter she can provide. This is also part of the reason why Lerato decided to take on the role of student again to study BA Language Practice to provide her with an even broader perspective on the field.

But why does Lerato feel so strongly about SASL? It is only through Sign Language, Lerato explains, that one can bridge the divide between the world of the hearing and that of the Deaf. “SASL is the only way for the minority Deaf group to receive and transfer information,” Lerato emphasises. “Deaf people cannot communicate in any other way.” Now, consider for a moment the plight of a Deaf child in South Africa. To receive education in SASL, most Deaf children have to move far away from home at a very young age in order to attend a school for the Deaf. For many years, schools for the Deaf did not include other languages as subjects, which prevented Deaf school-leavers from entering higher education. Although this situation has largely changed, Deaf students are still fighting an uphill battle when entering higher education institutions where prejudice and ignorance still persist. This is where the work of the Centre for Universal Access and Disability Support (CUADS) and the Department of South African Sign Language (SASL) and Deaf Studies makes such a crucial difference.

“I firmly believe,” Lerato says, “that only Sign Language can open opportunities for all groups of the Deaf community – from Deaf children to adults, and from the uneducated to the most educated Deaf people.” It is for this reason, Lerato argues, that our constitution needs to recognise SASL in order to give Deaf people full and equal access to information, to education, and ultimately, to all the opportunities South Africa has to offer.

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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