Water Pipeline to Botswana: A new freshwater pipeline with strategic pumping stations
and/or storage facilities on a 20 Km, 40 Km or 80Km distance between same, subject to
topography and logistical aspects along the entire distance from the Atlantic coastline of
Namibia comprising of some +/- 750 Kilometres all the way to the proposed site of
Futuristic City, near Charles Hill, in the Ghanza district of Botswana.
Community Water Supply: It is proposed, but yet to be agreed, and which must be
subject to a cross border agreement between Botswana and Namibia, the availability of
fresh water at each pumping station or reservoir/storage tank would be made available
to the local communities in Namibia, as well as potential commercial use of the fresh
water, on terms to be agreed.
This is due to the fact that until the proposed local Namibian volume is determined, the
use may require the desalination plant(s) and related energy infrastructure to be
expanded, to cope with the increased supply/demand, with the resultant additional
CAPEX.
‘Green’ Sustainability: In Futuristic City itself and the surrounding urbanisation areas,
rainwater harvesting systems and water recycling plants would be crucial, combined with
efficient water management practices like greywater recycling for as good a ‘green’
position as possible.
To combat the desert environment, there could be man-made lakes or canals formed by
advanced water recycling plants.
These would not only provide water but would also create aesthetic water features
throughout the city.
Climate Adaptation and Resilience:
Urban Heat Island Mitigation: One of the challenges of desert cities is the excessive
heat.
To combat this, buildings would incorporate passive cooling design, reflective materials,
green roofs, and shaded public spaces.
Urban planning would minimize heat absorption through careful placement of green
spaces and water features.
Desert Integration:
Desert Agriculture: Using modern desert farming techniques, such as hydroponics,
aquaponics, or vertical farming, the city could support local food production with
minimal water usage.
Waste Management and Water Treatment Facilities
Initial Overview:
This is a provisional report for the Futuristic City Development Group regarding a planned
a city with an estimated 350k residents and up to 2.5 million tourists annually.
The focus is on details for both waste management (recyclables and landfill) and
wastewater treatment, including costs and environmental impacts.
Initially we need to break down the physical waste generation.
For residents, assuming 1.5 kg per person per day, that’s 350,000 x 1.5 kg = 525,000 kg
daily. For tourists, assuming they generate slightly less, maybe 1.2 kg each therefore with
an estimated maximum capacity of +/- 2.5 million tourists annually, that would equate to
about 6,850 per day (2.5M / 365).
Therefore, a provisional capacity for 6,850 X 1.2 kg = 8,220 kg daily needs to be added
with the estimated total solid waste at full capacity in +/- 10 years being around 533,220
kg/day or about 194,625 tons annually.
Next, we need to focus on what percentage of the bulk waste are recyclables. If 30% is
recyclable, that’s 58,388 tons/year which needs to be factored into the overall planning
aspects.
The need to consider collection, sorting facilities, and markets for recyclables must also
be included in the provisional proposals.
Landfill for the remaining 70%, which is 136,237 tons/year is a major planning matter.
If there is an existing landfill from the local community area which can handle it, great,
otherwise the planners need a new one.
Transport costs depend on distance. If using an existing site say 20 km away, we
calculated the per kilometre costs for trucks, and in addition the empty back haul costs
which would be at a lower cost on return trips.
Wastewater treatment: It has been assumed that residents use about 300 liters/day, so
350,000 X 300 = 105 million liters daily. Tourists might use more, maybe 350 liters, so
6,850 x 350 = 2.4 million liters.
Total Wastewater Treatment capacity ~107.4 million liters/day.
The planning committee need to factor a treatment plant that can handle this, maybe for
+/- 110,000 m³/day capacity and to ensure to include primary, secondary, tertiary
treatment.
Recycling the non-potable water for irrigation or industry use is a good ‘green’ option,but
that would depend upon the needs and requirements of the local area, or the
transportation costs need to be factored into the overall costings.
It will require a full environmental impact study to determine any contra indications to the
existing groundwater.