Water is essential for life. Although 70% of the Earth's surface is covered with water, our planet’s freshwater reserves are scarce representing only 3 percent of the Earth's total volume of water. The effects of global warming such as droughts and melting ice caps will further reduce the availability of drinking water.
Water usage also contributes to climate change through the energy consumption that is required to process and treat drinking water.
Changi Airport’s Initiatives
Changi Airport is taking steps to reduce its water usage and the amount of water that it takes from the mains supply. To improve water resource management, some of the initiatives that Changi Airport Group has implemented include:
- Using storm water through a rainwater harvesting scheme for irrigating plants at Changi Airport Nursery and external landscape areas.
Usage of NEWater
- Substituting of domestic water with NEWater (recycled water) for non-potable use.
- Using NEWater for applications such as irrigation, fire-fighting, sanitation and cooling purposes in place of potable water.
- Installing flow rate regulators for wash basins in selected areas of the airport to reduce water usage by 66% from 6 litres per minute to 2 litres per minute.
- Installing taps with water saving devices such as on-off sensors.
- Educating tenants to use water efficient fittings in their premises.
- Introducing low-flush toilets with NEWater being used for flushing.