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Progress in better sanitation for all, as R1,9bn Zandvliet WWTW upgrade reaches milestone<span><p>The overall Zandvliet WWTW upgrade will expand the existing treatment capacity of wastewater by 18 million litres a day, bringing it to a daily total of 90 million litres a day. The project is on track to be completed by September 2023. </p><p>Zandvliet WWTW services one of the fastest growing catchments in the city – including Delft, Mfuleni, Blue Downs and Khayelitsha.</p><p>Besides the increased capacity, the upgrade will ensure that a high quality treated effluent is released, meeting or exceeding all licence requirements as laid out by the National Department of Water and Sanitation.<br></p> <figure class="subtopic-fullsize-img"> <img src="" class="responsive" alt="" style="width:949px;" /> </figure>​​</span><span><p>WWTWs perform the critical function of treating sewage/wastewater coming from homes, businesses and industries (referred to as influent) before releasing this as effluent into the environment via our waterways.</p><p>There are already significant treated wastewater quality improvements at Zandvliet as the Membrane Biological Reactor has been functioning for a few months now during its commissioning period.</p><p>Overall treated effluent compliance (with national standards for treated effluent coming from WWTW) has increased to 85% following the implementation of the upgrade which started construction in 2018. This will improve even further with the broader upgrade, ensuring high standards of treated wastewater leaving Zandvliet, which is particularly important as it will be used for water reuse in the future.</p><p>Mayor Hill-Lewis said, 'Today's handover of the completed Membrane Biological Reactor is a key milestone in the overall R1,9 billion state-of-the-art upgrade at Zandvliet wastewater works, set for completion in 2023. This is encouraging progress on one of the big focus areas of our government – better sanitation services for all in Cape Town. We know that decent sanitation is the beginning of dignity, and so much of our capital budgets over the next few years are focused on sewer pipe, pump station and wastewater works upgrades.'<br></p> <figure class="subtopic-fullsize-img"> <img src="" class="responsive" alt="" style="width:949px;" /> </figure></span><span><p>Councillor Mbandezi said, 'Thank you to our Water and Sanitation team for their commitment to the Zandvliet WWTW upgrade. Projects of this nature are complex, so it is encouraging to see plans on paper become a reality that benefits our residents. We look forward to more progress over the coming months and celebrating the completion of this much-needed upgrade.'</p><p><strong>About the Membrane Biological Reactor (MBR):</strong></p><ul><li>The MBR contains ultrafiltration membrane 'cassettes' of approximately 2,4m (length) x 2,4m (width) x 2,8m (height), and weighing about 2 tons.</li><li>The cassettes consist of submerged hollow-fibre type membranes which resemble 'spaghetti', hanging vertically in the sewage. The hollow fibres have microscopic pores through which liquid is extracted, leaving behind solids and contaminants. The extracted liquid then continues through the treatment process.</li></ul> <figure class="subtopic-fullsize-img"> <img src="" class="responsive" alt="" style="width:949px;" /> </figure>​​</span><p><br></p>2022-10-10T22:00:00ZGP0|#1d539e44-7c8c-4646-887d-386dc1d95d70;L0|#01d539e44-7c8c-4646-887d-386dc1d95d70|City news;GTSet|#62efe227-07aa-45e7-944c-ceebacca891dGP0|#f276514c-4fe4-4825-9426-2ae3e34ca4ea;L0|#0f276514c-4fe4-4825-9426-2ae3e34ca4ea|Zandvlei;GTSet|#2e3de6c1-9951-4747-8f53-470629a399bb;GP0|#1d5be3fa-6ace-455a-a415-51b265efce69;L0|#01d5be3fa-6ace-455a-a415-51b265efce69|water treatment plants;GP0|#90b49a62-96e2-436a-9c68-187c9ab33534;L0|#090b49a62-96e2-436a-9c68-187c9ab33534|Mayor10

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