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28 November 2023 | Story Michelle Nöthling | Photo Andile Andries Ndlovu
Nelisiwe Vilakazi and Abigail Webb
Nelisiwe Vilakazi (Head of Department for Social Development: KZN) and Abigail Webb during the ASASWEI International Conference and Awards 2023.

In a remarkable feat, Abigail ‘Zinhle’ Webb has clinched the prestigious Best Student Achievement Award from the Association of South African Social Work Education Institutions (ASASWEI), standing out among the nation's top-ranking students. This accolade, beyond acknowledging academic prowess, demands a notable contribution to the community – a criterion Abigail undeniably fulfils.

Elizabeth Msadu, Assistant Director of Student Counselling and Development and Abigail’s supervisor during her final year in Social Work at the University of the Free State (UFS) commends Abigail for  “her passion, integrity, high standards, and perhaps most of all, how selflessly she strives to improve the lives of the students around her.” 

Community engagement: breaking taboos

Abigail's success is not confined to academic excellence; her proactive approach to community issues is equally commendable. Observing the free condom container in her residence bathroom one day, she questioned the absence of support for female students regarding sanitary products. She found that “there is still immense shame around vaginal health.” This led to the initiation of workshops and the #comebleedwithusperiod social media challenge, normalising discussions around women’s menstrual health.

During her tenure on Akasia’s Residence Committee and as Prime this year, Abigail identified a reluctance among female students to assume leadership roles. Questioning this disparity, she launched a project aimed at addressing female apprehension surrounding leadership and failure. Through this initiative, Abigail empowered female students to embrace leadership positions and overcome societal expectations. 

Future plans: a commitment to growth

While Abigail is drawn to child and family services, and adoption work, she plans to gain practical experience before pursuing a Master’s degree. Inspired by the researchers she encountered at the ASASWEI conference and award ceremony, she expresses her newfound interest in research, envisioning a future where she actively contributes to the field.

Time well spent: reflecting on four years

Reflecting on her proudest achievements she said, “I think I’m most proud that I spent my time well. I lived to my fullest during my four years of study.” Recognising the crucial role of belonging in student success, she emphasises the significance of forming connections. From a shy, first-year student with a stutter, Abigail evolved into a dynamic force, dedicated to connecting and serving the community. 

As Abigail approaches the end of her studies, she acknowledges the uncertainty of the next step but asserts with confidence, “It’s going to be okay. I’m going to be okay.”

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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