Village
NEWS NEWS The
18 - 31 July 2017
Cape Whale Coast
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BABOON PROBLEM What to do?
PAGE 04 FINE WINES
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PAGE 09 WHAT’S COOKING Restaurant News
PAGE 12 29 JULY IS INTERNATIONAL TIGER DAY. Read more about how you can help Panthera Africa’s tigers Arabella and Raise (above) on P 14.
Hermanus a pure winner when it comes to water Hedda Mittner
H
ermanus has been lauded as a leader in water management by National Deputy Minister of Water and Sanitation Pamela Tshwete, after a visit to The Preekstoel Biofiltration Plant, the first and only of its kind in South Africa. Tshwete said this purification plant, located on Rotary Way, can be presented as “a world-
class case study” for water purification, conservation and management. She was speaking at a leadership briefing last week attended by Chief Director of the Department of Water Affairs in the Western Cape region, Rashid Khan, and various councillors and directors of the Municipality. “With large parts of the Western Cape, including the Cape Town Metropole, in the grip of a debilitating drought, the Overstrand Municipality is showing the way for other
local municipalities. We want to learn from the Overstrand and share its expertise with the rest of the country,” Minister Tshwete said. Hermanus is no stranger to droughts, but thanks to the proactive measures taken by the Municipality in seeking alternative sources of raw water, supply is stable at the moment. A few years ago, between September 2010 and May 2012, it was a very different story, with the level of the De Bos Dam dropping
to below 18%. At the time, the Municipality realised that the supply of water from the dam and the system used at Preekstoel to treat the water, would not be sufficient to cater for future demand growth. One of the alternative sources pursued was the development of a series of groundwater well fields, with the intention of supplementing the surface water sourced from De Bos Dam. However, the groundwater was found to be rich in
iron and manganese, which has to be removed to prevent problems ranging from the taste and staining of laundry to the clogging of the distribution network with gelatinous bacteria that use iron and manganese in their metabolism. The existing treatment works at Preekstoel was not able to remove the iron and manganese and specialised treatment of the groundwater was required. This process typically involves chemically oxidizing the
elements, but is expensive from both a capital and operational point of view, and the Municipality decided to follow the lesser-known route of biological treatment. Apart from a pilot study by Umgeni Water funded by the Water Research Commission, this process had not been used in South Africa, but has been successfully implemented in France, Germany, Belgium, The Netherlands, Finland, Bulgaria, Argentina, Togo and elsewhere. Read more on P 3