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世界地理与人文·英语30篇(2)

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Singapore: Water Security Through Innovation

Singapore: Water Security Through Innovation

新加坡:以创新保障水安全

  1. With no natural lakes or aquifers, Singapore imports nearly 40% of its water from Malaysia.
  2. NEWater plants purify wastewater using microfiltration, reverse osmosis, and UV light until it exceeds WHO standards.
  3. Roof catchment systems channel rainwater into reservoirs, turning the entire city-state into a catchment area.
  4. Desalination supplies 30% of current needs, though it remains energy-intensive and costly.
  5. Smart meters and public education campaigns reduced per capita water use by 12% between 2003 and 2023.
  6. Marina Barrage, a dam across a tidal estuary, creates a freshwater reservoir while preventing coastal flooding.
  7. Water pricing reflects scarcity, encouraging industries to recycle cooling water and minimize waste.
  8. Researchers test membranes that remove pharmaceutical residues, preparing for future water quality challenges.
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