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PREDICTED RESIDENTIAL WATER USE SOURCES ActivityUsage RateUsage Factor Water Use gal/day/cap “Blackwater” Toilet Flushing1.6 gal/flush4.

Published byJaime Lofty Modified over 9 years ago

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Presentation on theme: "PREDICTED RESIDENTIAL WATER USE SOURCES ActivityUsage RateUsage Factor Water Use gal/day/cap “Blackwater” Toilet Flushing1.6 gal/flush4."— Presentation transcript:

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10 PREDICTED RESIDENTIAL WATER USE SOURCES ActivityUsage RateUsage Factor Water Use gal/day/cap “Blackwater” Toilet Flushing1.6 gal/flush4 flushes/day/cap6.4 Dishwasher6.5 gal/load0.25/day/cap1.6 Garbage Grinding1.0 gal/use0.5/day/cap1.0 Subtotal9.0 “Graywater” Shower2.5 gal/min10 min/day/cap25.0 Bathroom Sink0.5 gal/use4 uses/day2.0 Kitchen Sink1.0 gal/use4 uses/day4.0 Clothes Washing30 gal/use0.33 uses/day/cap10 Subtotal41.0 Total50.0

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17 PREDICTED COMMERCIAL WATER USE SOURCES Source Total Water Use, Gal/Day Toilet/Urinal, Gal/Day (70% of Total) Lavatory/ Coffee Bar Sink, Gal/Day (30% of Total) Office Employee85.62.4 Shop/Warehouse Employee128.43.6

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25 STANDARD 350STANDARD 350-1 ParameterClass RClass CAll CBOD510 mg/l (25) 25 mg/l TSS10 mg/l (30) 30 mg/l Turbidity5 NTU ()2 NTU (5) E. Coli14 MPN/100 ml2.2 MPN/100 ml pH6.0 – 9.0 Chlorine0.5 – 2.5 mg/l NSF/ANSI STANDARD350 Onsite Residential and Commercial Water Reuse Treatment www.nsf.org/info/nsf 350

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