ENVE 1001 Lecture Notes - Lecture 6: Passive Solar Building Design, Evapotranspiration, Greywater

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~75% of all industrial water withdrawals are used for energy producion. Hydroelectricity is the largest renewable source of power generaion. Water is drawn from otawa river iltered, setled, treated pumped to storage reservoir. Average otawa resident uses ~250l of water per day. Wastewater is pumped to treatment plant water is screened, setled, treated returned to. Otawa river remaining sludge digested by bacteria into biosolids . To survive, we need 6-8l/p/d --- for good quality life, 100l/p/d --- currently use 400l/p/d. Buildings account for 12% of total water use. Outdoor use (landscaping) accounts for 30% of 26 billion gallons of water consumed daily. Water heaing in commercial buildings accounts for ~15% of total building energy use. Planet: demand for water drives operaions with negaive impacts. People: commodity that links most living things all people have right to water. Graywater: waste water typically from showers, sinks and laundry. Teriary treatment/standards: highest level of cleaning for wastewater.

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