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Solving Qwaqwa’s water crisis

06 October 2020 | Story Leonie Bolleurs | Photo Supplied

Dr Kgosi read more — Dr Kgosi Mocwagae explored the Qwaqwa water crisis because at a young age, he could not understand why the community in which he grew up faced so many water challenges despite a high presence of water from rivers, consistent rainfall, and streams bursting from the ground.

Dr Kgosi Mocwagae, Programme Director and Lecturer: Department of Urban and Regional Planning, received his PhD qualification during the October virtual graduation ceremonies.

His study, titled Exploring the Qwaqwa water crisis for effective planning post-apartheid, focuses on the water crisis in the Qwaqwa area, which commenced on 1 January 2016 and saw people without access to clean drinking water from their taps. The community had to turn to alternative means, such as collecting water from government-contracted water tankers, rivers, emergency hydrants, and wells.

Understanding the water crisis

Dr Mocwagae says the reason why he took up this study was because at a young age, he could not understand why the community in which he grew up faced so many water challenges despite a high presence of water from rivers, consistent rainfall, and streams bursting from the ground.

In this study, he aimed to explore the history of water policy in South Africa, together with the water crisis in Qwaqwa. He also documented the lived experiences of the affected Qwaqwa communities to determine the effect of not having access to clean drinking water in terms of quality of water, time, money, and distance travelled, to name just a few.

Dr Mocwagae furthermore assessed interventions by various actors during the Qwaqwa water crisis, which included accessing water from municipally contracted water tankers, streams and rivers, rainwater harvesting, donations, paying for delivery of water, boreholes, and emergency water hydrants intended for fire breakouts. He also investigated the implications of the Qwaqwa water crisis for effective planning in post-apartheid South Africa.

He states: “Despite reports from the government that the Qwaqwa water crisis was an issue from 2015 and a result of drought, the study proved differently.”

Water crisis due to poor planning

“Firstly, the water crisis was a cumulative effect of poor water planning since the founding of Qwaqwa as a homeland in 1974. Further to this, Qwaqwa has not been able to sufficiently provide water to the community from 1974 to date.”

Dr Mocwagae continues: “A major contributing factor to the water crisis was that the three dams in the area were still performing their primary functions as established during apartheid. Planning would have to be done to reprioritise water to Qwaqwa.

He also found that the municipality had not planned and invested in the maintenance and development of water infrastructure to provide water.

The study was also able to demonstrate that there is a form of socialisation in planning that does not prioritise the community of Qwaqwa. In this community, more than 50% of the people live in poverty. According to Dr Mocwagae’s findings, the idea exists that the community first needs to be viewed a worthy economic contributor in order for them to benefit from water that originates from Qwaqwa.

“Alternative means of accessing water and water-use education are also needed as part of the process of resolving the Qwaqwa water crisis,” says Dr Mocwagae.

News Archive

Fight against Ebola virus requires more research

2014-10-22

Dr Abdon Atangana
Photo: Ifa Tshishonge

Dr Abdon Atangana, a postdoctoral researcher in the Institute for Groundwater Studies at the University of the Free State (UFS), wrote an article related to the Ebola virus: Modelling the Ebola haemorrhagic fever with the beta-derivative: Deathly infection disease in West African countries.

“The filoviruses belong to a virus family named filoviridae. This virus can cause unembellished haemorrhagic fever in humans and nonhuman monkeys. In literature, only two members of this virus family have been mentioned, namely the Marburg virus and the Ebola virus. However, so far only five species of the Ebola virus have been identified, including: Ivory Coast, Sudan, Zaire, Reston and Bundibugyo.

“Among these families, the Ebola virus is the only member of the Zaire Ebola virus species and also the most dangerous, being responsible for the largest number of outbreaks.

“Ebola is an unusual, but fatal virus that causes bleeding inside and outside the body. As the virus spreads through the body, it damages the immune system and organs. Ultimately, it causes the blood-clotting levels in cells to drop. This leads to severe, uncontrollable bleeding.

Since all physical problems can be modelled via mathematical equation, Dr Atangana aimed in his research (the paper was published in BioMed Research International with impact factor 2.701) to analyse the spread of this deadly disease using mathematical equations. We shall propose a model underpinning the spread of this disease in a given Sub-Saharan African country,” he said.

The mathematical equations are used to predict the future behaviour of the disease, especially the spread of the disease among the targeted population. These mathematical equations are called differential equation and are only using the concept of rate of change over time.

However, there is several definitions for derivative, and the choice of the derivative used for such a model is very important, because the more accurate the model, the better results will be obtained. The classical derivative describes the change of rate, but it is an approximation of the real velocity of the object under study. The beta derivative is the modification of the classical derivative that takes into account the time scale and also has a new parameter that can be considered as the fractional order.

“I have used the beta derivative to model the spread of the fatal disease called Ebola, which has killed many people in the West African countries, including Nigeria, Sierra Leone, Guinea and Liberia, since December 2013,” he said.

The constructed mathematical equations were called Atangana’s Beta Ebola System of Equations (ABESE). “We did the investigation of the stable endemic points and presented the Eigen-Values using the Jacobian method. The homotopy decomposition method was used to solve the resulted system of equations. The convergence of the method was presented and some numerical simulations were done for different values of beta.

“The simulations showed that our model is more realistic for all betas less than 0.5. The model revealed that, if there were no recovery precaution for a given population in a West African country, the entire population of that country would all die in a very short period of time, even if the total number of the infected population is very small. In simple terms, the prediction revealed a fast spread of the virus among the targeted population. These results can be used to educate and inform people about the rapid spread of the deadly disease,” he said.

The spread of Ebola among people only occurs through direct contact with the blood or body fluids of a person after symptoms have developed. Body fluid that may contain the Ebola virus includes saliva, mucus, vomit, faeces, sweat, tears, breast milk, urine and semen. Entry points include the nose, mouth, eyes, open wounds, cuts and abrasions. Note should be taken that contact with objects contaminated by the virus, particularly needles and syringes, may also transmit the infection.

“Based on the predictions in this paper, we are calling on more research regarding this disease; in particular, we are calling on researchers to pay attention to finding an efficient cure or more effective prevention, to reduce the risk of contamination,” Dr Atangana said.

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