Identification the Application of Water Conservation in Hotel

Abstract

Water conservation aspect is a part of Green Building concept. In addition, to save more first clean water consumption, The X Hotel applied water conservation aspect, which are the WAC 3 (Water Recycling), WAC 4 (Alternative Water Resources), and the WAC 5 (Rainwater Harvesting) (GBCI, 2013). The plumbing installation system with water conservation aspects at X Hotel aims to distribute first class clean water, dispose of the wastewater to a treatment site with appropriate water requirements refers to SNI 03-7065-2005 X Hotel required 114,640 m 3 /day of first class clean water, and 91,71 m 3 /day of the total wastewater discharge, includes 18,35 m 3 /day of black water and 73,36 m 3 /day of gray water. The X Hotel has additional alternative sources of water condensate from air conditioner (AC) about 44,16 m 3 /day and 52,53 m 3 of rainwater, that can be used for water closet and urinal flushing in the public area at the Hotel, after through the anaerobic - aerobic biofilter STP (Sewerage Treatment Plant) and membrane filtration unit. After the calculation, water conservation aspects application can reduce first class clean water needs with an efficiency around 10%.