Graywater

(redirected from Greywater)
Also found in: Dictionary, Medical, Wikipedia.

Graywater

Appendix G of the Uniform Plumbing Code (UPC) defines graywater as “untreated household wastewater which has not come into contact with toilet waste. Graywater includes water from bathtubs, showers, bathroom wash basins, and water from clothes-washer and laundry tubs. It shall not include wastewater from kitchen sinks or dishwashers.” The International Plumbing Code (IPC) defines graywater in its Appendix C as “wastewater discharged from lavatories, bathtubs, showers, clothes washers, and laundry sinks.” Some states and local authorities allow kitchen sink wastewater to be included in graywater. Other differences with the UPC and IPC definitions can be found in state and local codes. Project teams should comply with the graywater definitions as established by the authority having jurisdiction in their areas.
References in periodicals archive ?
At a project level, the greywater from a building can be collected and reused in the building for flushing toilets and/or irrigation water.
The simplest way to get into home greywater reuse is to install a "laundry-to-landscape" system that sends washing machine wastewater outside via a diversion tank and hose that can be moved around to irrigate specific sections of the yard.
45) World Health Organization, "Wastewater Use in Agriculture," Guidelines for the Safe Use of Wastewater, Excreta and Greywater 2 (2006).
However, installing systems for harvesting, storing and reusing greywater isn't totally straightforward, and it's probably easier not to waste water in the first place.
The eco house, named The Greenhouse, was unveiled last year as a leading light in the design, installation and maintenance of the most commonly used equipment in the sustainable technologies market, including solar panels, heat pump installers, and rainwater harvesting and greywater recycling systems.
Also, new" homes are moving toward reclaiming of greywater that can be used in other areas such as landscaping.
28) Instead of huge, built infrastructure that supplies drinkable water for every purpose, whether needed or not, and then cleans up the resulting wastewater with expensive technology, communities will need to pursue lower-tech, decentralized, "green" infrastructure--including such simple projects as rainwater harvest, streetside swales, and greywater reuse.
The house featured a patent-pending indoor, liquid desiccant waterfall for high-efficiency humidity control; a split-butterfly roof that captures and uses both sunlight and rainwater; constructed wetlands that filter stormwater and greywater (household water with limited contaminants); a green roof; and a photovoltaic array that harvests enough energy to power the house year-round.
Both Greywater Can and Clearwater Can convey unfiltered delight in their craftsmanship through Rube Goldberg-style mechanics.
The German-Jordanian Program "Management of Water Resources" held a roundtable on greywater use in Jordan.
The themed entertainment destination, said Ayoubi, will serve as a model for "green energy," incorporating state-of-the-art renewable technologies throughout the facility, and hosting a "future" pavilion where businesses, students and attendees can learn about alternative energy sources ranging from solar and wind energy to greywater harvesting.