#WaterWatch

[LISTEN] How fog can be captured to provide alternative water resources

South African experts are constantly exploring alternative water resources to combat the nationwide water shortage crises.

Cape Town is the city currently under the greatest water stress, having recently managed to push what has been termed 'Day Zero' back to mid-May running out of water due to some late winter rains which arrived in the nick of time.

Teboho Mofokeng, Technical Executive at Gibb, says other than desalination plants it may be best to mimic the environment to see how water can be captured in various forms.

For example, we can capture it from fog which is essentially water vapour trapped in the air. When we build greenhouses, we also generate a lot of humidity so we could extract from the greenhouse and try to condense it to extract water.

Teboho Mofokeng, Technical Executive at GIBB

There have been a lot of studies done for both says Mofokeng. She explains that the greenhouse method is more applicable in the middle east areas where the countries are mainly coastal.

What could be more applicable for South Africa is capturing fog.

Teboho Mofokeng, Technical Executive at GIBB

The only way we can capture it, is to provide a surface where the warm and cold air come together. And when they hot the surface, they form little water droplets. You'd then need to find a way for those droplets to collect.

Teboho Mofokeng, Technical Executive at GIBB

Listen to Mofokeng explain how fog can be captured in the clip below:


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