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22 September 2021 | Story Michelle Nöthling | Photo Supplied
Simoné du Preez


“A community needs a culture, and a culture needs a language.” Pause a moment and consider these words of Simoné du Preez. 

How do we express our beliefs, values, customs, and norms, if not through language? The same is true for the Deaf – who are a minority cultural group in its own right. “Sign Language is the language in which the Deaf community laughs, cries, learns, and loves,” Simoné, a South African Sign Language (SASL) interpreter at the University of the Free State (UFS), points out. “Without it, no expression – and no cultural expression – can take place.”

Simoné’s passion for SASL was ignited while studying BA Language Practice at the UFS. Taking SASL as a main subject, she fell in love with the language, the culture, the history, and its people. Simoné then went on to do her honour’s degree in Language Practice, with specialisation in SASL Interpreting, and she never looked back. During her seven years as an interpreter at the UFS, Simoné still feels humbled by the student community she serves. “I get to learn so much from students from every walk of life, studying anything from Education to the Arts to Actuarial Sciences.” She enjoys seeing what Deaf students are capable of and is also “proud to be a part of their success stories.”

She not only has a soft spot for our students, but also for the Department of SASL and Deaf Studies that has helped shape her into the interpreter she is today. Simoné adds that she loves working with the Centre for Universal Access and Disability Support (CUADS). “It’s amazing to see what lengths Martie Miranda and her team are willing to go through in order to achieve equity and equality for our students with disabilities. I am humbled and honoured to be able to play a small role in their big plan.”

Always pushing herself to improve, Simoné has now set herself the goal of becoming a SASL interpreter accredited by the South African Translators’ Institute (SATI). It is immensely important for Simoné that the Deaf community has access to all information at all times – equal to that of a hearing person. The recognition of SASL as an official language in South Africa is vital to actualising this. Simoné underscores the fact that without this recognition, the Deaf are being silenced. “Their voices are just as important as every other person’s. It is time that we listen to what the Deaf community has to say.”


News Archive

Research helps farmers save with irrigation
2017-02-15

Description: Irrigation research Tags: Irrigation research

Marcill Venter, lecturer in the Department of
Agricultural Economics at the University of the
Free State, has developed the mathematical
programming system, Soil Water Irrigation
Planning and Energy Management in order to
determine irrigation pump hours.
Photo: Rulanzen Martin

Her advice to farmers is that they should make sure they are aware of the total cost (investment and operating costs) of an irrigation system. In most cases the investment cost is low, but the operating cost over the lifetime of the system is high.

“It is very important to have a look at the total cost and to install the most economic system,” says Marcill Venter, lecturer at the University of the Free State (UFS), who has done research on the economic sustainability of water-pipe systems.

Irrigation systems important components for farming
This research comes at a time when many farmers are relying on their irrigation systems due to persistent drought and low rainfall during 2016. South Africa has also experienced an abnormal increase in electricity tariffs in recent years. Due to tariff increases which threaten the future profitability of irrigation producers, the Water Research Commission (WRC) has launched and financed a project on the sustainable management of irrigation farming systems. “I had the opportunity to work on the project as a researcher,” says Venter.

The heart of every irrigation system is the water pipes that bring life to crops and livestock, and this is what Venter’s research is about. “Water pipes are part of the whole design of irrigation systems. The design of the system impact certain factors which determine the investment and operating costs,” she says.

Mathematical system to help farmers
Venter and Professor Bennie Grové, also from the Department of Agricultural Economics at the UFS, designed the Soil Water Irrigation Planning and Energy Management (SWIP-E) programming model as part of the WRC’s project, as well as for her master’s degree. “The model determines irrigation pump hours through a daily groundwater budget, while also taking into account the time-of-use electricity tariff structure and change in kilowatt requirements arising from the main-line design,” says Venter. The model is a non-linear programming model programmed in General Algebraic Modeling System (GAMS).

Design of irrigation system important for sustainability

The main outcome of the study is that the time-of-use electricity tariff structure (Ruraflex) is always more profitable than the flat-rate structure (Landrate). The interaction between the management and design of a system is crucial, as it determines the investment and operating costs. Irrigation designers should take the investment and operating cost of a system into account during the design process. The standards set by the South African Irrigation Institute (SAII) should also be controlled and revised.

Water-pipe thickness plays major role in cost cuts
There is interaction between water-pipe thickness, investment and operating costs. When thinner water pipes are installed, it increases the friction in the system as well as the kilowatt usage. A high kilowatt increases the operating cost, but the use of thinner water pipes lowers the investment cost. Thicker water pipes therefore lower the friction and the kilowatt requirements, which leads to lower operating costs, but thicker pipes have a higher investment cost. “It is thus crucial to look at the total cost (operating and investment cost) when investing in a new system. Farmers should invest in the system with the lowest total cost,” says Venter.

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