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08 April 2019 | Story Valentino Ndaba | Photo Valentino Ndaba
Andrew Lane
Mining the fourth industrial revolution way is the future says industry expert, Andrew Lane.

Innovation is imperative for the future of mining in South Africa. Industry expert, Andrew Lane proposes that leveraging on new information, mining technologies and energy knowhow, which are the hallmarks of the fourth industrial revolution, should set the scene for success.

Lane who is Africa Energy and Resource Leader at Deloitte, engaged students at a recent guest lecture hosted by the University of the Free State’s Business School on the Bloemfontein Campus. “The future is intelligent mining. It’s not just about technology; it’s about changing the way you do business,” he said.

Transforming traditional to trailblazing
“What gives you sustainable competitive advantage is the rate at which you innovate,” said Lane. Design paradigm shifts in the South African mining industry may have resulted in about 100 000 job losses during the past four years. However, mining companies stand to achieve significant gains through applying innovation.

Despite most of South Africa’s mines nearing the end of their lives, mining remains a large employer and investor attractor which ensures that the country holds a competitive advantage in the global economy. Lane is adamant that, “even though we have declined from 20% to 5% in terms of GDP contributions, mining remains a large contributor to export earnings”.

Reaching resource-rich regions
While some physical resources are inaccessible using current technology, “new mineral-processing technologies help tap into previously uneconomical mineral deposits”, according to Lane. In addition to the environment, 3D visualisation cameras can track employees and equipment in the bowels of the earth.

More mining, less loss
Integrating mining, energy, and information technology will ensure that companies reduce people, capital and energy intensity, while increasing mining intensity. The impossible can be achieved if technology is used well for developmental outcomes, employment, and improving standards of living.



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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