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Environmental effects of laundry wastewater : ウィキペディア英語版 | Environmental effects of laundry wastewater
Wastewater comes out of the laundry process with additional energy (heat), lint, soil, dyes, finishing agents, and other chemicals from detergents.〔Steber, J., & Wiebel, F. Laundry Detergents, 4. Ecology and Toxicology. ''Ullmann's Encyclopedia of Industrial Chemistry''. (doi: 10.1002/14356007.o15_o15 )〕 Some laundry wastewater goes directly into the environment, due to the flaws of water infrastructure. The majority goes to sewage treatment plants before flowing into the environment. Some chemicals remain in the water after treatment, which may contaminate the water system. They can be toxic to wildlife, or can lead to eutrophication. ==General influences of laundry wastewater== Data shows that United States has more than 35,000 laundries. On the average, a single laundry can discharge 400 m3 of wastewater every day.〔Ciabattia, I., Cesaro, F., Faralli, L., Fatarella, E., & Tognotti, F. (2009). Demonstration of a treatment system for purification and reuse of laundry wastewater. ''Desalination'', 245(1), 451-459. (doi:10.1016/j.desal.2009.02.008 )〕 Annually, about 5.11 km3 laundry wastewater is produced, which can fill 1,460 Superdomes in New Orleans.
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