Jul 12, 2012
WRC study to map out areas for fog harvestingBack
SECURITY|Africa|Security|System|Systems|Water|Africa|South Africa|Security|Security|Systems|Soutpansberg Mountains|West Coast|Environmental|Edna Molewa|Marti Wenger|Security|Water|West Coast
© Reuse this
In a written reply to a Parliamentary question posed by Democratic Alliance Member of Parliament Marti Wenger, Molewa said that the study, which started in April 2011, would produce the ‘South African Atlas of Fog Harvesting Potential’, which would effectively map out the areas of the country with the best potential for fog-water capture.
South Africa – with an average of about 500 mm of rainfall a year, compared with the global average of 860 mm a year - is a water-scarce country, which, she said, was further exacerbated by the seasonality and uneven distribution of rainfall across the country. About 21% of South Africa's land receives less than 200 mm of rain a year.
It was believed that fog-water harvesting in low rainfall areas could enhance water security in water-scarce parts of the country, particularly in rural communities.
To this end, studies undertaken by the WRC, since 1995, have established the feasibility of using fog to supplement existing water supplies and aimed to design, erect and operate a fog water collection system in rural communities.
After the roll-out and three-year monitoring of a number of fully operational pilot fog-harvesting systems around South Africa, including at the Tshanowa Junior Primary School, in the Soutpansberg Mountains, in Limpopo, and at the Lepelfontein village, on the West Coast, it was found that the system would not be universally applicable owing to the spatial and temporal variation in fog characteristics and types.
“The designs are area- and context-specific and there is no comprehensive guide to define the suitable criteria needed for a location to be suitable for this technology,” Molewa said, adding that the more comprehensive four-year study – optimising fog-water harvesting – should further speed up the roll-out of the practise.
Edited by: Mariaan Webb© Reuse this Comment Guidelines (150 word limit)
Other Water News
Recent Research Reports
Road and Rail 2014: A review of South Africa's road and rail infrastructure (PDF report)
Creamer Media’s Road and Rail 2014 report examines South Africa’s road and rail transport system, with particular focus on the size and state of the country’s road and rail network, the funding and maintenance of these respective networks, and the push to move road...
Real Economy Year Book 2014 (PDF Report)
This edition drills down into the performance and outlook for a variety of sectors, including automotive, construction, electricity, transport, steel, water, coal, gold, iron-ore and platinum.
Real Economy Insight: Automotive 2014 (PDF Report)
This four-page brief covers key developments in the automotive industry over the past 12 months, including an overview of South Africa’s automotive market, trade figures, production and the policies influencing the sector.
Real Economy Insight: Construction 2014 (PDF Report)
This five-page brief covers key developments in the construction industry over the past 12 months. It provides an overview of the sector and includes details of employment in the sector, infrastructure and municipal spending, as well as insight into companies’...
Real Economy Insight: Electricity 2014 (PDF Report)
This five-page brief covers key developments in the electricity industry over the past 12 months, including details of State-owned power utility Eskom’s generation activities, funding and tariffs, independent power producers and prospects for the sector.
Real Economy Insight: Road and Rail 2014 (PDF Report)
This six-page brief covers key developments in the road and rail industries over the past 12 months, including details of South Africa’s road and rail network and prospects for both sectors.
This Week's Magazine
While Ekurhuleni-based transformer manufacturer Reliable Transformers currently designs, manufactures and tests its products according to the SANS 780 specifications for distribution transformers and other applicable transformer specifications, it is working towards...
Global endpoint security solutions company Kaspersky Lab has introduced new measures to prevent cyber criminals from accessing sensitive data, alongside its malware-signature and heuristic device analysis detection methods. Threats to mobile devices have increased...
To ensure uptake and a positive impact, Wireless Fidelity (Wi-Fi) networks in cities must be provided at schools, community centres and commercial centres to enable citizens and government to access information that will improve access to and delivery of services....
Eco-estate Monaghan Farm, located near Lanseria airport, north-west of Johannesburg, has taken a new approach to modern living and sustainability with its 517 ha development, dedicated to farm living.
Forklift and lift-truck distributor Goscor Lift Hi-Reach launched the Genie SX-180, the tallest self-propelled super boom in Africa, in Johannesburg last month. “As the official distributor of the well-known Genie range of equipment in Southern Africa, we are pleased...