TABLE OF CONTENTS - The Professional Green Building Council

Theme B: Creating a livable, healthy and environmentally viable citiesfrom green roofs, concrete roofs, covered walkways and the main pedestrian plaza.Condensate from the commercial centres’ central air-conditioning system willprovide huge volume of sustainable water supply. Both sources of reclaimed waterwill initially pass through a set of break tanks and then stored for re-use. A set offiltration and disinfection treatments maintains the water quality to an internationalstandard. By using the reclaimed water system, an annual reduction in waterconsumption of 9,263m 3 is anticipated, which equates to 65% of the total irrigationamount required per year.Figure 8:Reclaimed water system at commercial development collects condensatewater for irrigation.Recycling of reclaimed water is also introduced to the domestic development atEHC 5. Apart from collecting rainwater from roof gardens, and taking intoconsideration the frequent use of household air conditioning in the sub-tropicregion, condensate water from air conditioning units of domestic flats will also becollected for irrigation after filtration and sterilization. Subject to the outcome ofthe trial in EHC 5, the success of the scheme should contribute significantly to theagenda of water conservation at residential settings.194