11 ICLEI / NMBM DROUGHT / FLOODING WORKSHOP WATER & SANITATION B.J. Martin 25 September 2013.
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Transcript of 11 ICLEI / NMBM DROUGHT / FLOODING WORKSHOP WATER & SANITATION B.J. Martin 25 September 2013.
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ICLEI / NMBM
DROUGHT / FLOODING WORKSHOP
WATER & SANITATION
B.J. Martin
25 September 2013
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CONTENTS
1. Climate Change2. Water Supply System3. Rainfall 4. Dam Storage5. Water Consumption6. Affects of Climate Change 7. Climate Change Mitigation8. Conclusion
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When did climate change start?
Fact:
1. NMBM has a drought every 4 years over at least the last 20 yrs!
2. Every drought is broken by a flood or heavy rainfall.
3. Any persistent rain appears to be causing flooding!
1. CLIMATE CHANGE
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2. WATER SUPPLY SYSTEM
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2. WATER SUPPLY SYSTEM cont.
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3. RAINFALL
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RAINFALL
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4. DAM STORAGE
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4. DAM STORAGE cont…
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5. WATER CONSUMPTION
8,6 %
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DEMAND VERSUS YIELD
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6. AFFECTS OF CLIMATE CHANGE Drought / flood cycles occurs regularly.
Drought / flood future: No rain periods will be more prolonged!
Rainfall period shorter & more intense!
Will our water sources be sufficient?
Affects of El Nino & La Nino!
Urbanisation creates greater impact on same water sources.
Housing Programme (80 000 units).
Economic growth
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7. CLIMATE CHANGE MITIGATION Water Master Plan:
NCLLS: water from different catchment (R770M)
Recycling of wastewater (R1,5 Billion)
Industrial use
Indirect potable use
WC/WDM (R57M pa)
NRW – leak detection etc.
Water Saving Awareness Campaign.
WC/WDM must be an ongoing programme.
Groundwater (R150)
Desalination (R1 Billion)
New infrastructure to support development.
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7. CLIMATE CHANGE MITIGATION cont…
Sanitation Master Plan: Upgrading of 6 wastewater treatment works (R1.6 Billion):
Energy efficiency
Energy abstraction
Rehabilitation of reticulation network:
Reduce ingress of stormwater
New infrastructure to support development
Rehabilitation of pump stations.
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7. CLIMATE CHANGE MITIGATION cont…
Design intervention: Energy Efficiency:
Operational Efficiency.
Equipment efficiency.
Water & Wastewater Treatment Process optimisation.
Water Services By Law:
House designs: Rain water harvesting
Township layout designs: Strom water mitigation
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8. CONCLUSIONS
Climate change affects:
Water availability Future use of water WC/WDM as a daily practice Reuse of water Water & Sanitation tariffs Efficient use of electricity Domestic & industrial consumption of services Town planning
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Thank You
“Keep it flowing in the pipe”