03 In order to save water, rainwater harvesting systems will be designed and installed in all new govemment buildings. H

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03 In Order To Save Water Rainwater Harvesting Systems Will Be Designed And Installed In All New Govemment Buildings H 1 (18.75 KiB) Viewed 39 times

03 In order to save water, rainwater harvesting systems will be designed and installed in all new govemment buildings. However, water quality and safety is a major concern. Therefore, for a three storeys public carpark building, with water features in a small roof garden and a roof tennis court, all floors have low external parapet walls of 1100 mm height all round the building perimeters, state : (a) with the aid of sketch, two possible sources where you could collect rain water from the building. (6 marks) (b) three basic rainwater treatment processes and explain how they work. (15 marks) (c) four suggestions where the collected rainwater can be reused after treatment. (4 marks)