Water Usage at Airports

Triple Water System Implemented at Hong Kong International Airport

Wet Wash Time9-12 hours

Dry Wash Time12-24 hours

Aircraft potable water tank capacity

Q40090 28 L

AircraftSeatsTank

B738184 114 L

B744400 1,250 L

A380853 1,700 L

65

60

55

50

45

40

35

30

25

2012 2013 2014 2015 2016

Water usage at 4 major ACSA airports

JNB

CPT

DUR

PLZ

70

60

50

40

30

20

10

•Total pax(millions)

Water use(L/pax)

Water use (L/pax)

60

50

40

30

20

10

•

Passenger tra�c and water use at ACSA airports and selected airports worldwide 2015/16

ACSA BNE AKL FRA BOM ICN MAD SYD

Sustainable Water Management Programs

• Drought resistant vegetation;• For aircraft washing, use dry wash instead of wet wash;• Use sea water to �ush toilets;• Install waterless urinals in all male toilets;• Collect �re testing water for re-use or re-purpose;

ACI World Airport Tra�c Report, 2017; ACSA, 2016; Airport annual reports, 2016 and 2017; Aircraft manufacturer manuals; Lufthansa Technik, 2018; Mike Kilburn, 3rd ACI Airport

Environmental Seminar, 2014; News.com.au, 2017. www.naco.nl

Airport Waste Water Streams,Treatment Process and End User

Toilet�ushing

Landscapeirrigation

Environ-mentalreleases

Toilets

ToiletsBasinBasin/Sink

Basin/SinkGreywater

reclamation plant

Wastewatertreatment

plant

Aircraft Wash Water

AirportStormwater

Airport Bathrooms

OnboardLavatory

Terminal BuildingWaste Water

(Kitchens & Lounges)

Sources

Treatment

Out�ows

Code F (A380)

Volume of Water for Aircraft Washing (L)

Code E (B777)

Volume of Water for Aircraft Washing (L)

9,500

11,300“Emirates Airlines

has saved 11 million litres of water per

year when switching from wet to dry wash for their aircraft �eet in 2016.” Aircraft

LavatorySystem

Water reclemation

plant

Landscapeirrigation

Once-through cooling system

Catering.foodWater sink

Aircraft wash waterFire �ghting system

Toilet �ushing