What Are the Main Options for Applying the Multiple-Use Water Services Paradigm? - Rethinking Infrastructure Design for Multi-Use Water Services - page 34

5.4 Green Walls Used for Wastewater Treatment

Water recycling systems can be linked to green walls, pumping the captured grey
water (or even collecting storm water), which then passes through gravel filters and

marine plants for treatment. The ef uent is then directed to a storage tank for

domestic use or to public water treatment plants (GRHC 2014 ).

Showcase: EDITT Tower in Singapore
Photorealistic image of the EDITT Tower in Singapore, designed with a grey
water filtration system that includes water purification, water and wastewater
recycling. Only 45 % of building water demand is supplied through the public
mains.

Source TR Hamzah & Yeang Sdn Bhd ( http://www.trhamzahyeang.com/
project/skyscrapers/edit-tower01.html )

5.5 What to Consider Before Applying Green Walls and
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While selecting a green wall system one must consider installation and maintenance
cost and structure requirements, climate conditions, lighting, types of plants and
quality, functionality and lifespan (DEPI 2014 ). A successful construction must
serve its design purpose, require low maintenance, effectively support the selected
vegetation and have a long lifespan.