Knowledge (XXG)

Greywater

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797:(DWR), in consultation with the State Department of Health Services, to adopt and submit to the CBSC regulations for a State version of Appendix J (renamed Chapter 16 Part 2) of the Uniform Plumbing Code to provide design standards to safely plumb buildings with both potable and recycled water systems. November 2009 the CBSC unanimously voted to approve the California Dual Plumbing Code that establishes statewide standards for potable and recycled water plumbing systems in commercial, retail and office buildings, theaters, auditoriums, condominiums, schools, hotels, apartments, barracks, dormitories, jails, prisons and reformatories. In addition, the 262: 135: 273: 143: 158: 665:
common and least restricted system. In most states with in the United States, this system does not require construction permits. This system is often characterized as Laundry to Landscape (L2L). The system relies on valves, draining to a mulch basin, or the area of irrigation for certain landscape features (a mulch basin for a tree requires 12.6 ft). The drip system must be calibrated to avoid uneven distribution of grey water or overloading.
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jurisdictions, this has commonly meant domestic greywater diversion for landscape irrigation was either not permitted or was discouraged by expensive and complex sewage system approval requirements. Wider legitimate community greywater diversion for landscape irrigation has subsequently been handicapped and resulted in greywater reuse continuing to still be widely undertaken by householders outside of and in preference to the legal avenues.
768:. In the 2009 Legislative Session, the state of Montana passed a bill expanding greywater use into multi-family and commercial buildings. The Department of Environmental Quality has already drafted rules and design guidelines for greywater re-use systems in all these applications. Existing staff would review systems proposed for new subdivisions in conjunction with review of all other wastewater system components. 2502: 31: 842:
a guideline to use greywater for toilet flushing and British Columbia's building code includes subsurface irrigation with greywater. In Alberta "Reclaimed wastewater from any source cannot be used domestically unless it is approved and meets water quality testing and monitoring by the local municipality." Saskatchewan also treats greywater as sewage.
658:) is already fairly clean to begin with and/or has not been polluted with non-degradable chemicals such as non-natural soaps (thus using natural cleaning products instead). It is not recommended to use water that has been in the greywater filtration system for more than 24 hours as bacteria builds up, affecting the water that is being reused. 851:
treatment), such as bathing in the bath or simply transferring laundry water to the lawn where children and pets may be exposed directly. The Department of Health and Community Services (DHCS) focuses on protecting public health and then takes action to control and minimize the public health risks associated with greywater reuse.
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device, incoming cold water flows first through a heat exchanger where it is pre-warmed by heat from greywater flowing out from such activities as dish washing or showering. Typical household devices receiving greywater from a shower can recover up to 60% of the heat that would otherwise go to waste.
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Demand on conventional water supplies and pressure on sewage treatment systems is reduced by the use of greywater. Re-using greywater also reduces the volume of sewage effluent entering watercourses which can be ecologically beneficial. In times of drought, especially in urban areas, greywater use in
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and is therefore not free of pathogens. The excreta come from washing the anal area in the bath and shower or from the laundry (washing underwear and diapers). The quality of greywater can deteriorate rapidly during storage because it is often warm and contains some nutrients and organic matter (e.g.
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The National Plumbing Code, which is adopted in whole or in part by the provinces, indicates that non-potable water systems should only be used to supply toilets and underground irrigation systems, collecting rainwater with roof gutters is included as a form of greywater. Health Canada has published
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Greywater from single sewered premises has the potential to be reused on site for ornamental, garden and lawn irrigation, toilet flushing. The reuse options include Horizontal flow reed bed (HFRB), Vertical flow reed bed (VFRB), Green roof water recycling system (GROW), Membrane bioreactor (MBR) and
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A clothes washer grey water system is sized to recycle the grey water of a one or two family home using the reclaimed water of a washing machine (produces 15 gallons per person per day). It relies on either the pump from the washing machine or gravity to irrigate. This particular system is the most
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since surface irrigation is not permitted. There are three types of use in Arizona: up to a quota of 400 gpd per family (close to 1500 L per day) no permission is required for greywater use, between 400 and 3000 gpd (1500 and 11,355 L per day, respectively) permission is required and above 3000 gpd
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It is now recognized and accepted by an increasing number of regulators that the microbiological risks of greywater reuse at the single dwelling level where inhabitants already had intimate knowledge of that greywater are in reality an insignificant risk, when properly managed without the need for
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has also been studied. A few organic micropollutants including benzene were found in greywater in significant concentrations but most pollutants were in very low concentrations. Fecal contamination, peripheral pathogens (e.g., skin and mucous tissue), and food-derived pathogens are the three major
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Global water resource supplies are shrinking. According to a report from the United Nations, water shortages will affect 2.7 billion people by 2025, which means 1 out of every 3 people in the world will be affected by this problem. Reusing greywater has become a good way to solve this problem, and
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Although Canada is a water-rich country, the center of the country freezes in the winter and droughts happen some summers. There are locations where watering outdoors is restricted in the dry season, some water must be transported from an outside source, or on-site costs are high. At present, the
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has two main purposes: water conservation and socioeconomic aspects. The Amman Islamic Water Development and Management Network (INWRDAM) in Jordan promoted research on gray water reuse in Jordan. At present, greywater research in Jordan is funded mainly by the International Development Research
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In Arizona, greywater is defined as water with a BOD5 less than 380 mg/L, TSS<430 and the Fats, Oil, and Grease (FOG) content should be less than 75 mg/L. The Arizona water has issued advice that people should avoid direct contact with greywater. Most greywater use is by underground
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In households with conventional flush toilets, greywater makes up about 65% of the total wastewater produced by that household. It may be a good source of water for reuse because there is a close relationship between the production of greywater and the potential demand for toilet flushing water.
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Household greywater from a single contaminated site may be reused on-site at the ornamental garden and lawn watering, toilet flushing and laundry uses, depending on the type of greywater and treatment level. Some people wisely re-use the gross weight, but others use it even worse (without any
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with greywater. Where greywater is still considered sewage, it is bound by the same regulatory procedures enacted to ensure properly engineered septic tank and effluent disposal systems are installed for long system life and to control spread of disease and pollution. In such regulatory
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and bring a potential health risk for people. However, the result of the research shows that the health risk due to reuse of greywater either for garden irrigation or toilet flushing was not significantly higher than the risk associated with using clear water for the same activities.
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Recycled grey water from domestic appliances also can be used to flush toilet. Its application is based on standards set by plumbing codes. Indoor grey water reuse requires an efficient cleaning tank for insoluble waste, as well as a well regulated control mechanism.
810:(>11,355 L per day) it is considered as conventional wastewater venture. Other limitations include restrictions on contact, restrictions on use on herbaceous food plants, exclusion of hazardous materials and effective separation from surface water run-off. 335:
directly within the home, garden or company and used either immediately or processed and stored. If stored, it must be used within a very short time or it will begin to putrefy due to the organic solids in the water. Recycled greywater of this kind is never
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are safe to use, as plants can use it to obtain nitrogen. A 2010 study of greywater irrigation found no major health effects on plants, and suggests sodium buildup is largely dependent on the degree to which greywater migrates vertically through the soil.
782:). As a large amount of energy (electricity) is used for pumping, treating and transporting potable water within the state, water conservation has been identified as one of several ways California is seeking to reduce greenhouse gas emissions. 775:, led to issuance of only one residential graywater permit since 2010. A working group formed to streamline the permitting process, and in 2013, the city created new code that has eased the requirements, resulting in four more permits. 324:, and high loads of organic matter. It should undergo preliminary treatment to remove these substances before discharge into a greywater tank. If this is difficult to apply, it could be directed to the sewage system or to an existing 386:
In constructed wetlands, the plants use contaminants of greywater, such as food particles, as nutrients in their growth. Salt and soap residues can be toxic to microbial and plant life alike, but can be absorbed and degraded through
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governing domestic greywater use for landscape irrigation (diversion for reuse) is still a developing area and continues to gain wider support as the actual risks and benefits are considered and put into clearer perspective.
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The treatment processes that can be used are in principle the same as those used for sewage treatment, except that they are usually installed on a smaller scale (decentralized level), often at household or building level:
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The government of Cyprus has implemented four water-saving subsidies: drilling installations, drilling with lavatories, installation of hot water circulation systems and installation of greywater recycling systems.
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Greywater use for irrigation appears to be a safe practice. A 2015 epidemiological study found no additional burden of disease among greywater users irrigating arid regions. The safety of reuse of greywater as
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Center (IDRC) in Ottawa, Canada, to install and use greywater systems based on the establishment of small wetland systems in private households. The cost of this system is about 500 US dollars per household.
789:(CBSC) approved the addition of Chapter 16A "Non-potable Water Reuse Systems" to the 2007 California Plumbing Code. Emergency regulations allowing greywater reuse systems were subsequently filed with the 1619: 3584: 661:
Due to the limited treatment technology, the treated greywater still contains some chemicals and bacteria, so some safety issues should be observed when using the treated greywater around the home.
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Greywater recycling is relatively uncommon in the UK, largely because the financial cost and environmental impact of mains water is very low. Greywater systems should comply with BS8525 and the
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and the Middle East where available water supplies are limited, especially in view of a rapidly growing population, a strong imperative exists for adoption of alternative water technologies.
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An intelligent control mechanism that flushes the collected water if it has been stored long enough to be hazardous; this completely avoids the problems of filtration and chemical treatment
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Most greywater is easier to treat and recycle than sewage because of lower levels of contaminants. If collected using a separate plumbing system from blackwater, domestic greywater can be
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approaches. The main advantage of keeping greywater separate from toilet wastewater is that the pathogen load is greatly reduced, and the greywater is therefore easier to treat and reuse.
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Oron, Gideon; Adel, Mike; Agmon, Vered; Frieder, Eran; Halperin, Rami; Leshem, Ehud; Weinberg, Daniel (14 March 2014). "Grey water use in Israel and worldwide: Standards and prospects".
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Oron, Gideon; Adel, Mike; Agmon, Vered; Frieder, Eran; Halperin, Rami; Leshem, Ehud; Weinberg, Daniel (14 March 2014). "Greywater use in Israel and worldwide: Standards and prospects".
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becoming a necessity in a growing number of jurisdictions, business, political and community pressure has made regulators seriously reconsider the actual risks against actual benefits.
716:"Greywater" (by pure legal definition) is considered in some jurisdictions to be "sewage" (all wastewater including greywater and toilet waste), but in the U.S. states that adopt the 624:
Recycled greywater from showers and bathtubs can be used for flushing toilets in most European and Australian jurisdictions and in United States jurisdictions that have adopted the
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Busgang, A; Friedler, E; Ovadia, O; Gross, A (2015). "Epidemiological study for the assessment of health risks associated with grey water reuse for irrigation in arid regions".
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Devices are currently available that capture heat from residential and industrial greywater through a process called drain water heat recovery, greywater heat recovery, or hot
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generated in households or office buildings from streams without fecal contamination, i.e., all streams except for the wastewater from toilets. Sources of greywater include
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from the shower, sink, or washing machine do not pose practical hazards under normal conditions, as long as the greywater is used correctly (for example, percolated from a
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allows surface and subsurface irrigation and other non-specific use of greywater under a Department of Environmental Quality policy enacted in March 2010.
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The use of non-toxic and low-sodium soap and personal care products is recommended to protect vegetation when reusing greywater for irrigation purposes.
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In the Western Provinces, graywater must be collected by the septic system where it goes through the same treatment and dispersal process as blackwater.
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Blanky, Marina; Sharaby, Yehonatan; et al. (14 June 2017). "Grey water reuse – Assessment of the health risk induced by Legionella pneumophila".
1021: 794: 786: 1067:"Nano and microplastics occurrence in wastewater treatment plants: A comprehensive understanding of microplastics fragmentation and their removal" 676:, adopted in some U.S. jurisdictions, prohibits greywater use indoors. However, the California Plumbing Code, derived from the UPC, permits it. 1587: 793:
August 2009 and became effective immediately upon filing. Assembly Bill 371 (Goldberg 2006) and Senate Bill 283 (DeSaulnier 2009) directed the
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In California, a push has been made in recent years to address greywater in connection with the State's greenhouse gas reduction goals (see
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Government Department of Water and Energy's newly released greywater diversion rules, and the recent passage of greywater legislation in
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Monira, Sirajum; Roychand, Rajeev; Hai, Faisal Ibney; Bhuiyan, Muhammed; Dhar, Bipro Ranjan; Pramanik, Biplob Kumar (September 2023).
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Maimon, Adi; Friedler, Eran; Gross, Amit (27 March 2014). "Parameters affecting grey water quality and its safety for reuse".
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and more natural 'backyard' small scale systems, such as small ponds or biodiverse landscapes that naturally purify greywater.
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Etchepare, R; van der Hoek, J (2015). "Health risk assessment of organic micropollutants in grey water for potable reuse".
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Some greywater may be applied directly from the sink to the garden or container field, receiving further treatment from
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Such a system could provide an estimated 30% reduction in water use for the average household. The danger of
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when preserved by the natural purification in the top layers of soil than generated water treatment processes
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dead skin cells), as well as pathogens. Stored greywater also leads to odour nuisances for the same reason.
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uses. Greywater may still have some pathogen content from laundering soiled clothing or cleaning the
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The Uniform Plumbing Code, adopted in some U.S. jurisdictions, prohibits gray water use indoors.
753: 726:, it can be used in underground disposal fields that are akin to shallow sewage disposal fields. 720:, it can be used for subsurface irrigation and for toilet flushing, and in states that adopt the 547:; or in mulch-filled trenches) and not sprayed, as there is a danger of inhaling the water as an 302: 88: 3451: 340:, but a number of treatment steps can be used to provide water for washing or flushing toilets. 1004:
Tilley, Elizabeth; Ulrich, Lukas; Lüthi, Christoph; Reymond, Philippe; Zurbrügg, Chris (2014).
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Misconnections of pipes can cause greywater tanks to contain a percentage of blackwater.
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Left: greywater sample from an office building. Right: Same greywater after treatment in
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for applications where potable water is not required (e.g., garden and land irrigation,
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Example of a source of greywater in the household: dirty water from cleaning the floor
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In any greywater system, it is important to avoid toxic materials such as bleaches,
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Most greywater should be assumed to have some blackwater-type components, including
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Can reduce the amount of wastewater entering the sewer or on-site treatment system.
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has greywater standards and DWR has also proposed dual plumbing design standards.
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standards for greywater reuse are not strict compared with other countries.
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When greywater is mixed with toilet wastewater, it is called sewage or
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International Association of Plumbing and Mechanical Officials (IAPMO)
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Gross, Amit; Maimon, Adi; Alfiya, Yuval; Friedler, Eran (2015-03-26).
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Greywater reuse in toilet flushing and garden irrigation may produce
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plants or an onsite sewage facility, which is often a septic system.
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Type of wastewater generated in households without toilet wastewater
654:). It may also be used in dwellings when the greywater (e.g., from 435:
irrigation or toilet systems helps to achieve some of the goals of
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The potential ecological benefits of greywater recycling include:
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The potential economic benefits of greywater recycling include:
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The separate treatment of greywater falls under the concept of
1951:"FAQs – Saskatchewan Onsite Wastewater Management Association" 317: 313: 1975: 1903:
British Columbia Health Protection Branch Ministry of Health
1584:"Policy recommendations for Montana | Greywater Action" 1441:
S. Sharvelle; L.A. Roesner; Y. Qian; M. Stromberger (2010).
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Greywater "towers" are used to treat and reuse greywater in
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Juan, Yi-Kai; Chen, Yi; Lin, Jing-Ming (19 November 2016).
598: 379: 1560:"Gray Water Indoor Reuse, Cascading, Rainwater Harvesting" 799:
California Department of Housing and Community Development
91:, it is generally safer to handle and easier to treat and 1651:
California Air Resources Board. AB 32 Scoping Plan. 2008.
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Greywater recycling without treatment is used in certain
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Texas Comptroller of Public Accounts. Retrieved 2/11/14.
1509:"Laundry to Landscape Original Complete Information Hub" 639:
A cleaning tank, to eliminate floating and sinking items
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Reduced energy use and chemical pollution from treatment
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Canadian Commission On Building And Fire Codes (2015).
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Water Recycling and Reuse: The Environmental Benefits
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onerous approval processes. This is reflected in the
1781:(Tenth ed.). National Research Council Canada. 3639: 3613: 3573: 3518: 3480: 3399: 3244: 2923: 2743: 2555: 2410: 2237: 2159: 2013: 1633:Texas Water Report: Going Deeper for the Solution 1422:Dr. Allen V. Barker; Jean E. English (Sep 2011). 1007:Compendium of Sanitation Systems and Technologies 1955:Alberta Onsite Wastewater Management Association 446:Reduced freshwater extraction from rivers and 2533: 1991: 1448:(Interim Report). Colorado State University. 294:, which is one principle commonly applied in 197:) commonly rinsed into greywater may contain 146:Urban decentralized greywater treatment with 8: 744:and some other states allow true subsurface 422:wastewater reuse is also called recycled or 359:Bioreactors or more compact systems such as 122:subsystem, by reducing the demand for fresh 1534:"Gray water: from the washer to the garden" 118:provides substantial benefits for both the 2540: 2526: 2518: 1998: 1984: 1976: 253:or used correctly in farming irrigation). 177:Greywater usually contains some traces of 1874:"Household Reclaimed Wastewater - Canada" 1211: 1115: 1082: 1060: 1058: 944: 823:Water Supply (Water Fittings) Regulations 367:process and is also used to treat sewage. 165:in the basement of an office building in 1779:"National Plumbing Code of Canada: 2015" 1532:Times, Los Angeles (16 September 2014). 1098:Tolksdorf, J.; Cornel, P. (2017-05-19). 999: 997: 995: 868:The emphasis on the use of greywater in 795:California Department of Water Resources 787:California Building Standards Commission 3595:Plumbing & Drainage Institute (PDI) 1896:"Health Information: Grey Water Re-Use" 1610:"Gray water law is a good step forward" 1430:from the original on September 1, 2012. 1424:"Recycling Gray Water for Home Gardens" 904: 185:Synthetic personal care products (e.g. 1858:: CS1 maint: archived copy as title ( 1851: 1810: 1799: 1599:2007 grey water legislation in Montana 312:Greywater from kitchen sinks contains 114:The application of greywater reuse in 1737: 1735: 1733: 1731: 1729: 980:from the original on 13 February 2010 7: 3545:Mechanical, electrical, and plumbing 691:Rather than flowing directly into a 437:ecologically sustainable development 276:Underground greywater recycling tank 245:that enter the greywater stream via 825:in order to avoid risks to health. 519:sources of pathogens in greywater. 2387:Ultraviolet germicidal irradiation 25: 2865:Push-to-pull compression fittings 2257:Agricultural wastewater treatment 1084:10.1016/j.chemosphere.2023.139011 912:Behzadian, k; Kapelan, Z (2015). 829:Membrane chemical reactor (MCR). 585:, which can cause excessive soil 413:Integrated urban water management 2501: 2500: 1876:. Health Canada. August 27, 2007 1663:Science of the Total Environment 1622:from the original on 2016-04-07. 1455:from the original on 2013-04-09. 1346:Science of the Total Environment 1268:Science of the Total Environment 1246:"Sustainable Earth Technologies" 1024:from the original on 2015-05-26. 921:Science of the Total Environment 59:in the United States) refers to 2317:Industrial wastewater treatment 2287:Decentralized wastewater system 1715:from the original on 2017-03-09 1683:10.1016/j.scitotenv.2014.03.133 1590:from the original on 2013-01-06 1426:. University of Massachusetts. 1366:10.1016/j.scitotenv.2014.03.133 1288:10.1016/j.scitotenv.2015.08.009 968:Duttle, Marsha (January 1990). 937:10.1016/j.scitotenv.2015.04.097 601:. Cleaning products containing 161:Greywater treatment plant with 1389:Sustainable Earth Technologies 771:Strict permit requirements in 83:. As greywater contains fewer 1: 2337:Rotating biological contactor 791:California Secretary of State 417:Sewage treatment § Reuse 363:which are a variation of the 205:. Greywater originating from 3605:World Plumbing Council (WPC) 3156:Reduced pressure zone device 1756:10.1016/j.watres.2014.03.032 1401:10.1016/j.watres.2017.08.068 1323:10.1016/j.watres.2014.10.048 1104:Water Science and Technology 217:) is also likely to contain 3600:Uniform Plumbing Code (UPC) 3319:Instant hot water dispenser 3121:Piping and plumbing fitting 1183:. Chelsea Green Publishing. 1153:. July 2016. Archived from 974:New Mexico State University 970:"NM State greywater advice" 718:International Plumbing Code 626:International Plumbing Code 391:and aquatic plants such as 348:Biological systems such as 3724: 2946:Backflow prevention device 2931:Atmospheric vacuum breaker 2402:Wastewater treatment plant 2169:Adsorbable organic halides 1476:. Retrieved: 21 July 2015. 574:, and products containing 497:Can reduce the demand for 406: 279: 3206:Thermostatic mixing valve 2496: 2174:Biochemical oxygen demand 562:-based cleansers, strong 305:and should be treated in 2936:Automatic bleeding valve 2575:Compatibility (chemical) 633:biological contamination 471:Reclamation of nutrients 3141:Pressure-balanced valve 3136:Pressure vacuum breaker 2845:Pipe (fluid conveyance) 2787:Drain-waste-vent system 2767:Chemical drain cleaners 2362:Sewage sludge treatment 2302:Fecal sludge management 2262:API oil–water separator 2229:Wastewater surveillance 1179:Hemenway, Toby (2009). 526:. These could transmit 111:in the shower or bath. 3662:Template:Public health 3334:water recycling shower 3304:Hot water storage tank 2635:Onsite sewage facility 2219:Total suspended solids 2214:Total dissolved solids 2179:Chemical oxygen demand 1925:"Reclaimed Wastewater" 1809:Cite journal requires 282:Sewage treatment plant 277: 269: 169: 154: 139: 38: 3647:Fire sprinkler system 3356:Tankless water heater 3299:Garbage disposal unit 3284:Electric water boiler 2756:British Standard Pipe 2086:Industrial wastewater 1228:"Greywater Recycling" 723:Uniform Plumbing Code 710:Government regulation 674:Uniform Plumbing Code 635:is avoided by using: 407:Further information: 378:and systems based on 296:ecological sanitation 280:Further information: 275: 264: 160: 145: 137: 33: 3346:Storage water heater 2915:Water heat recycling 2823:National Pipe Thread 2725:Water supply network 2428:Groundwater recharge 1615:The Montana Standard 1234:on January 30, 2009. 1117:10.2166/wst.2017.293 923:. 527–528: 220–231. 883:Rainwater harvesting 686:water heat recycling 467:Groundwater recharge 389:constructed wetlands 370:Mechanical systems ( 361:membrane bioreactors 350:constructed wetlands 241:The small traces of 99:, landscape or crop 3677:Template:Wastewater 3535:Hydrostatic testing 3176:Rooftop water tower 2772:Compression fitting 2342:Secondary treatment 2327:Membrane bioreactor 2282:Constructed wetland 2081:Infiltration/Inflow 1675:2014ScTEn.487...20M 1358:2014ScTEn.487...20M 1280:2015ScTEn.538..230B 929:2015ScTEn.527..220B 558:, artificial dyes, 474:Greater quality of 376:lava filter systems 257:Treatment processes 163:membrane bioreactor 148:constructed wetland 116:urban water systems 61:domestic wastewater 36:membrane bioreactor 3708:Water conservation 3631:Waterborne disease 3530:Hydronic balancing 3289:Evaporative cooler 3254:Accessible bathtub 3151:Radiator (heating) 3131:Pressure regulator 3026:Double check valve 3001:Concentric reducer 2802:Garden Hose Thread 2695:Thermal insulation 2565:Air gap (plumbing) 2507:Category: Sewerage 2468:Septic drain field 2433:Infiltration basin 2377:Stabilization pond 2297:Facultative lagoon 2161:Quality indicators 2041:Blackwater (waste) 2021:Acid mine drainage 1638:2014-02-22 at the 1472:2015-07-29 at the 893:Water purification 888:Water conservation 785:In July 2009, the 754:water conservation 528:legionella disease 278: 270: 170: 155: 140: 39: 3685: 3684: 3667:Template:Sewerage 3614:Health and safety 3590:NSF International 3400:Specialized tools 3279:Drinking fountain 3246:Plumbing fixtures 3126:Plug (sanitation) 3111:Nipple (plumbing) 3031:Eccentric reducer 3011:Coupling (piping) 2976:Chemigation valve 2829:Nominal Pipe Size 2792:Ductile iron pipe 2690:Thermal expansion 2515: 2514: 2292:Extended aeration 2239:Treatment options 2189:Oxygen saturation 2036:Blackwater (coal) 2014:Sources and types 1709:shop.bsigroup.com 1539:Los Angeles Times 1048:978-1-4822-5505-8 1017:978-3-906484-57-0 613:and plant roots. 452:Less impact from 292:source separation 234:Practical aspects 211:synthetic fabrics 16:(Redirected from 3715: 3672:Template:Toilets 3437:Flare-nut wrench 3196:Submersible pump 3021:Dielectric union 2941:Automatic faucet 2900:Thread seal tape 2860:Plastic pipework 2620:Hydrostatic loop 2585:Drain (plumbing) 2542: 2535: 2528: 2519: 2504: 2503: 2423:Evaporation pond 2411:Disposal options 2382:Trickling filter 2367:Sewage treatment 2267:Carbon filtering 2247:Activated sludge 2000: 1993: 1986: 1977: 1970: 1969: 1964: 1962: 1947: 1941: 1940: 1938: 1936: 1921: 1915: 1914: 1912: 1910: 1905:. September 2017 1900: 1892: 1886: 1885: 1883: 1881: 1870: 1864: 1863: 1857: 1849: 1847: 1846: 1840: 1834:. Archived from 1833: 1825: 1819: 1818: 1812: 1807: 1805: 1797: 1795: 1793: 1787:10.4224/40002007 1774: 1768: 1767: 1739: 1724: 1723: 1721: 1720: 1701: 1695: 1694: 1658: 1652: 1649: 1643: 1630: 1624: 1623: 1606: 1600: 1598: 1596: 1595: 1580: 1574: 1573: 1571: 1570: 1556: 1550: 1549: 1547: 1546: 1529: 1523: 1522: 1520: 1519: 1505: 1499: 1498: 1496: 1494: 1483: 1477: 1463: 1457: 1456: 1454: 1447: 1438: 1432: 1431: 1419: 1413: 1412: 1384: 1378: 1377: 1341: 1335: 1334: 1306: 1300: 1299: 1263: 1257: 1256: 1254: 1252: 1242: 1236: 1235: 1230:. Archived from 1224: 1218: 1217: 1215: 1213:10.3390/w8110546 1191: 1185: 1184: 1176: 1170: 1169: 1167: 1165: 1160:on 10 April 2017 1159: 1152: 1144: 1138: 1137: 1119: 1110:(5): 1132–1139. 1095: 1089: 1088: 1086: 1062: 1053: 1052: 1032: 1026: 1025: 1001: 990: 989: 987: 985: 965: 959: 958: 948: 918: 909: 680:Heat reclamation 365:activated sludge 307:sewage treatment 103:, and other non- 77:washing machines 21: 3723: 3722: 3718: 3717: 3716: 3714: 3713: 3712: 3703:Water pollution 3688: 3687: 3686: 3681: 3635: 3609: 3577: 3575: 3569: 3522: 3520: 3514: 3500:Pressure sensor 3482: 3476: 3452:Plumber's snake 3395: 3376:Water dispenser 3366:Washing machine 3240: 3066:Flushing trough 3016:Diaphragm valve 3006:Condensate pump 2986:Circulator pump 2966:Butterfly valve 2919: 2890:Solvent welding 2782:Crimp (joining) 2739: 2705:Trap (plumbing) 2680:Surface tension 2557: 2551: 2546: 2516: 2511: 2492: 2458:Reclaimed water 2406: 2332:Reverse osmosis 2233: 2155: 2121:Reverse osmosis 2046:Boiler blowdown 2009: 2004: 1974: 1973: 1960: 1958: 1949: 1948: 1944: 1934: 1932: 1931:. Alberta. 2021 1929:Reclaimed Water 1923: 1922: 1918: 1908: 1906: 1898: 1894: 1893: 1889: 1879: 1877: 1872: 1871: 1867: 1850: 1844: 1842: 1838: 1831: 1829:"Archived copy" 1827: 1826: 1822: 1808: 1798: 1791: 1789: 1776: 1775: 1771: 1741: 1740: 1727: 1718: 1716: 1703: 1702: 1698: 1660: 1659: 1655: 1650: 1646: 1640:Wayback Machine 1631: 1627: 1608: 1607: 1603: 1593: 1591: 1582: 1581: 1577: 1568: 1566: 1564:oasisdesign.net 1558: 1557: 1553: 1544: 1542: 1531: 1530: 1526: 1517: 1515: 1513:oasisdesign.net 1507: 1506: 1502: 1492: 1490: 1485: 1484: 1480: 1474:Wayback Machine 1464: 1460: 1452: 1445: 1440: 1439: 1435: 1421: 1420: 1416: 1386: 1385: 1381: 1343: 1342: 1338: 1308: 1307: 1303: 1265: 1264: 1260: 1250: 1248: 1244: 1243: 1239: 1226: 1225: 1221: 1193: 1192: 1188: 1178: 1177: 1173: 1163: 1161: 1157: 1150: 1146: 1145: 1141: 1097: 1096: 1092: 1064: 1063: 1056: 1049: 1038:Greywater Reuse 1034: 1033: 1029: 1018: 1003: 1002: 993: 983: 981: 967: 966: 962: 916: 911: 910: 906: 901: 879: 866: 857: 848: 835: 819: 807:drip irrigation 762:New South Wales 746:drip irrigation 707: 702: 682: 652:toilet flushing 622: 595:calcium sulfate 537: 511: 458:treatment plant 432: 424:reclaimed water 419: 409:Reclaimed water 405: 399:, and grasses. 372:sand filtration 288: 286:Reclaimed water 259: 236: 227: 207:washing clothes 175: 132: 97:toilet flushing 28: 23: 22: 15: 12: 11: 5: 3721: 3719: 3711: 3710: 3705: 3700: 3690: 3689: 3683: 3682: 3680: 3679: 3674: 3669: 3664: 3659: 3654: 3649: 3643: 3641: 3637: 3636: 3634: 3633: 3628: 3623: 3617: 3615: 3611: 3610: 3608: 3607: 3602: 3597: 3592: 3587: 3581: 3579: 3576:organizations 3571: 3570: 3568: 3567: 3562: 3557: 3552: 3547: 3542: 3540:Leak detection 3537: 3532: 3526: 3524: 3516: 3515: 3513: 3512: 3510:Water metering 3507: 3505:Water detector 3502: 3497: 3492: 3486: 3484: 3478: 3477: 3475: 3474: 3469: 3464: 3459: 3457:Plumber wrench 3454: 3449: 3444: 3439: 3434: 3429: 3424: 3419: 3414: 3409: 3403: 3401: 3397: 3396: 3394: 3393: 3391:Water softener 3388: 3383: 3378: 3373: 3368: 3363: 3358: 3353: 3348: 3343: 3338: 3337: 3336: 3326: 3321: 3316: 3311: 3306: 3301: 3296: 3291: 3286: 3281: 3276: 3271: 3266: 3261: 3256: 3250: 3248: 3242: 3241: 3239: 3238: 3233: 3228: 3223: 3221:Vacuum ejector 3218: 3216:Vacuum breaker 3213: 3208: 3203: 3198: 3193: 3188: 3183: 3178: 3173: 3168: 3163: 3158: 3153: 3148: 3143: 3138: 3133: 3128: 3123: 3118: 3113: 3108: 3103: 3098: 3093: 3088: 3083: 3078: 3073: 3068: 3063: 3058: 3053: 3048: 3043: 3041:Faucet aerator 3038: 3036:Expansion tank 3033: 3028: 3023: 3018: 3013: 3008: 3003: 2998: 2993: 2988: 2983: 2978: 2973: 2968: 2963: 2958: 2953: 2948: 2943: 2938: 2933: 2927: 2925: 2921: 2920: 2918: 2917: 2912: 2907: 2902: 2897: 2892: 2887: 2882: 2880:Sewage pumping 2877: 2872: 2867: 2862: 2857: 2852: 2847: 2842: 2837: 2832: 2826: 2820: 2818:Leak detection 2815: 2810: 2805: 2799: 2794: 2789: 2784: 2779: 2774: 2769: 2764: 2762:Cast iron pipe 2759: 2753: 2747: 2745: 2741: 2740: 2738: 2737: 2732: 2727: 2722: 2717: 2712: 2710:Venturi effect 2707: 2702: 2697: 2692: 2687: 2682: 2677: 2672: 2667: 2662: 2657: 2652: 2647: 2645:Sanitary sewer 2642: 2637: 2632: 2627: 2622: 2617: 2612: 2607: 2602: 2597: 2592: 2590:Drinking water 2587: 2582: 2577: 2572: 2567: 2561: 2559: 2553: 2552: 2547: 2545: 2544: 2537: 2530: 2522: 2513: 2512: 2510: 2509: 2497: 2494: 2493: 2491: 2490: 2485: 2483:Surface runoff 2480: 2475: 2470: 2465: 2463:Sanitary sewer 2460: 2455: 2453:Marine outfall 2450: 2448:Marine dumping 2445: 2440: 2438:Injection well 2435: 2430: 2425: 2420: 2418:Combined sewer 2414: 2412: 2408: 2407: 2405: 2404: 2399: 2394: 2389: 2384: 2379: 2374: 2369: 2364: 2359: 2357:Settling basin 2354: 2349: 2344: 2339: 2334: 2329: 2324: 2319: 2314: 2309: 2304: 2299: 2294: 2289: 2284: 2279: 2274: 2269: 2264: 2259: 2254: 2252:Aerated lagoon 2249: 2243: 2241: 2235: 2234: 2232: 2231: 2226: 2221: 2216: 2211: 2206: 2201: 2196: 2191: 2186: 2184:Coliform index 2181: 2176: 2171: 2165: 2163: 2157: 2156: 2154: 2153: 2148: 2143: 2138: 2133: 2128: 2126:Sanitary sewer 2123: 2118: 2113: 2111:Produced water 2108: 2103: 2098: 2093: 2088: 2083: 2078: 2073: 2068: 2063: 2058: 2056:Combined sewer 2053: 2048: 2043: 2038: 2033: 2028: 2023: 2017: 2015: 2011: 2010: 2005: 2003: 2002: 1995: 1988: 1980: 1972: 1971: 1942: 1916: 1887: 1865: 1820: 1811:|journal= 1769: 1744:Water Research 1725: 1696: 1653: 1644: 1625: 1618:. 2009-04-01. 1601: 1575: 1551: 1524: 1500: 1478: 1458: 1433: 1414: 1379: 1336: 1311:Water Research 1301: 1258: 1237: 1219: 1186: 1171: 1139: 1090: 1054: 1047: 1027: 1016: 991: 960: 903: 902: 900: 897: 896: 895: 890: 885: 878: 875: 865: 862: 856: 853: 847: 844: 834: 831: 818: 817:United Kingdom 815: 752:However, with 706: 703: 701: 698: 681: 678: 644: 643: 640: 621: 618: 536: 533: 510: 507: 506: 505: 502: 488:U.S. Southwest 484: 483: 472: 469: 464: 461: 460:infrastructure 450: 431: 428: 404: 401: 384: 383: 368: 357: 258: 255: 235: 232: 226: 223: 174: 171: 131: 128: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 3720: 3709: 3706: 3704: 3701: 3699: 3696: 3695: 3693: 3678: 3675: 3673: 3670: 3668: 3665: 3663: 3660: 3658: 3657:Template:HVAC 3655: 3653: 3650: 3648: 3645: 3644: 3642: 3638: 3632: 3629: 3627: 3624: 3622: 3621:Plumbing code 3619: 3618: 3616: 3612: 3606: 3603: 3601: 3598: 3596: 3593: 3591: 3588: 3586: 3583: 3582: 3580: 3578:and standards 3572: 3566: 3563: 3561: 3558: 3556: 3553: 3551: 3548: 3546: 3543: 3541: 3538: 3536: 3533: 3531: 3528: 3527: 3525: 3517: 3511: 3508: 3506: 3503: 3501: 3498: 3496: 3493: 3491: 3490:Control valve 3488: 3487: 3485: 3479: 3473: 3470: 3468: 3465: 3463: 3460: 3458: 3455: 3453: 3450: 3448: 3445: 3443: 3440: 3438: 3435: 3433: 3430: 3428: 3427:Drain cleaner 3425: 3423: 3420: 3418: 3415: 3413: 3410: 3408: 3405: 3404: 3402: 3398: 3392: 3389: 3387: 3384: 3382: 3379: 3377: 3374: 3372: 3369: 3367: 3364: 3362: 3359: 3357: 3354: 3352: 3349: 3347: 3344: 3342: 3339: 3335: 3332: 3331: 3330: 3327: 3325: 3322: 3320: 3317: 3315: 3312: 3310: 3307: 3305: 3302: 3300: 3297: 3295: 3292: 3290: 3287: 3285: 3282: 3280: 3277: 3275: 3272: 3270: 3267: 3265: 3262: 3260: 3257: 3255: 3252: 3251: 3249: 3247: 3243: 3237: 3234: 3232: 3229: 3227: 3224: 3222: 3219: 3217: 3214: 3212: 3209: 3207: 3204: 3202: 3199: 3197: 3194: 3192: 3189: 3187: 3184: 3182: 3179: 3177: 3174: 3172: 3169: 3167: 3164: 3162: 3159: 3157: 3154: 3152: 3149: 3147: 3144: 3142: 3139: 3137: 3134: 3132: 3129: 3127: 3124: 3122: 3119: 3117: 3114: 3112: 3109: 3107: 3104: 3102: 3099: 3097: 3096:Hose coupling 3094: 3092: 3089: 3087: 3084: 3082: 3079: 3077: 3074: 3072: 3069: 3067: 3064: 3062: 3059: 3057: 3054: 3052: 3049: 3047: 3044: 3042: 3039: 3037: 3034: 3032: 3029: 3027: 3024: 3022: 3019: 3017: 3014: 3012: 3009: 3007: 3004: 3002: 2999: 2997: 2996:Closet flange 2994: 2992: 2989: 2987: 2984: 2982: 2979: 2977: 2974: 2972: 2969: 2967: 2964: 2962: 2959: 2957: 2954: 2952: 2949: 2947: 2944: 2942: 2939: 2937: 2934: 2932: 2929: 2928: 2926: 2922: 2916: 2913: 2911: 2908: 2906: 2905:Threaded pipe 2903: 2901: 2898: 2896: 2893: 2891: 2888: 2886: 2883: 2881: 2878: 2876: 2873: 2871: 2868: 2866: 2863: 2861: 2858: 2856: 2853: 2851: 2848: 2846: 2843: 2841: 2838: 2836: 2833: 2830: 2827: 2824: 2821: 2819: 2816: 2814: 2811: 2809: 2806: 2803: 2800: 2798: 2797:Flare fitting 2795: 2793: 2790: 2788: 2785: 2783: 2780: 2778: 2777:Copper tubing 2775: 2773: 2770: 2768: 2765: 2763: 2760: 2757: 2754: 2752: 2749: 2748: 2746: 2742: 2736: 2733: 2731: 2728: 2726: 2723: 2721: 2718: 2716: 2713: 2711: 2708: 2706: 2703: 2701: 2698: 2696: 2693: 2691: 2688: 2686: 2683: 2681: 2678: 2676: 2673: 2671: 2668: 2666: 2663: 2661: 2658: 2656: 2653: 2651: 2648: 2646: 2643: 2641: 2638: 2636: 2633: 2631: 2628: 2626: 2623: 2621: 2618: 2616: 2613: 2611: 2608: 2606: 2605:Grade (slope) 2603: 2601: 2600:Friction loss 2598: 2596: 2593: 2591: 2588: 2586: 2583: 2581: 2578: 2576: 2573: 2571: 2568: 2566: 2563: 2562: 2560: 2554: 2550: 2543: 2538: 2536: 2531: 2529: 2524: 2523: 2520: 2508: 2499: 2498: 2495: 2489: 2486: 2484: 2481: 2479: 2476: 2474: 2471: 2469: 2466: 2464: 2461: 2459: 2456: 2454: 2451: 2449: 2446: 2444: 2441: 2439: 2436: 2434: 2431: 2429: 2426: 2424: 2421: 2419: 2416: 2415: 2413: 2409: 2403: 2400: 2398: 2395: 2393: 2390: 2388: 2385: 2383: 2380: 2378: 2375: 2373: 2370: 2368: 2365: 2363: 2360: 2358: 2355: 2353: 2350: 2348: 2347:Sedimentation 2345: 2343: 2340: 2338: 2335: 2333: 2330: 2328: 2325: 2323: 2320: 2318: 2315: 2313: 2310: 2308: 2305: 2303: 2300: 2298: 2295: 2293: 2290: 2288: 2285: 2283: 2280: 2278: 2275: 2273: 2270: 2268: 2265: 2263: 2260: 2258: 2255: 2253: 2250: 2248: 2245: 2244: 2242: 2240: 2236: 2230: 2227: 2225: 2222: 2220: 2217: 2215: 2212: 2210: 2207: 2205: 2202: 2200: 2197: 2195: 2192: 2190: 2187: 2185: 2182: 2180: 2177: 2175: 2172: 2170: 2167: 2166: 2164: 2162: 2158: 2152: 2149: 2147: 2144: 2142: 2141:Sewage sludge 2139: 2137: 2134: 2132: 2129: 2127: 2124: 2122: 2119: 2117: 2114: 2112: 2109: 2107: 2104: 2102: 2099: 2097: 2094: 2092: 2089: 2087: 2084: 2082: 2079: 2077: 2074: 2072: 2069: 2067: 2066:Cooling water 2064: 2062: 2061:Cooling tower 2059: 2057: 2054: 2052: 2049: 2047: 2044: 2042: 2039: 2037: 2034: 2032: 2029: 2027: 2026:Ballast water 2024: 2022: 2019: 2018: 2016: 2012: 2008: 2001: 1996: 1994: 1989: 1987: 1982: 1981: 1978: 1968: 1956: 1952: 1946: 1943: 1930: 1926: 1920: 1917: 1904: 1897: 1891: 1888: 1875: 1869: 1866: 1861: 1855: 1841:on 2018-08-23 1837: 1830: 1824: 1821: 1816: 1803: 1788: 1784: 1780: 1773: 1770: 1765: 1761: 1757: 1753: 1749: 1745: 1738: 1736: 1734: 1732: 1730: 1726: 1714: 1710: 1706: 1700: 1697: 1692: 1688: 1684: 1680: 1676: 1672: 1668: 1664: 1657: 1654: 1648: 1645: 1641: 1637: 1634: 1629: 1626: 1621: 1617: 1616: 1611: 1605: 1602: 1589: 1585: 1579: 1576: 1565: 1561: 1555: 1552: 1541: 1540: 1535: 1528: 1525: 1514: 1510: 1504: 1501: 1488: 1482: 1479: 1475: 1471: 1468: 1462: 1459: 1451: 1444: 1437: 1434: 1429: 1425: 1418: 1415: 1410: 1406: 1402: 1398: 1394: 1390: 1383: 1380: 1375: 1371: 1367: 1363: 1359: 1355: 1351: 1347: 1340: 1337: 1332: 1328: 1324: 1320: 1316: 1312: 1305: 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CRC Press. 1040: 1039: 1031: 1028: 1023: 1019: 1013: 1009: 1008: 1000: 998: 996: 992: 979: 975: 971: 964: 961: 956: 952: 947: 942: 938: 934: 930: 926: 922: 915: 908: 905: 898: 894: 891: 889: 886: 884: 881: 880: 876: 874: 871: 863: 861: 854: 852: 845: 843: 839: 832: 830: 826: 824: 816: 814: 811: 808: 802: 800: 796: 792: 788: 783: 781: 776: 774: 773:Austin, Texas 769: 767: 763: 757: 755: 750: 747: 743: 739: 735: 731: 727: 725: 724: 719: 714: 711: 705:United States 704: 699: 697: 694: 693:water heating 689: 687: 679: 677: 675: 670: 666: 662: 659: 657: 653: 649: 641: 638: 637: 636: 634: 629: 627: 619: 617: 614: 612: 607: 604: 600: 596: 592: 588: 584: 581: 577: 573: 569: 565: 561: 557: 552: 550: 546: 542: 534: 532: 529: 525: 520: 517: 516:potable water 508: 503: 500: 496: 495: 494: 491: 489: 481: 477: 473: 470: 468: 465: 462: 459: 455: 451: 449: 445: 444: 443: 440: 438: 429: 427: 425: 418: 414: 410: 402: 400: 398: 394: 390: 381: 377: 373: 369: 366: 362: 358: 355: 351: 347: 346: 345: 341: 339: 338:safe to drink 334: 329: 327: 323: 319: 315: 310: 308: 304: 299: 297: 293: 287: 283: 274: 268: 263: 256: 254: 252: 248: 244: 239: 233: 231: 224: 222: 220: 216: 212: 208: 204: 203:microplastics 200: 196: 192: 188: 183: 180: 172: 168: 164: 159: 153: 149: 144: 136: 129: 127: 125: 121: 117: 112: 110: 106: 102: 98: 94: 90: 86: 82: 78: 74: 70: 66: 62: 58: 55: 51: 47: 43: 37: 32: 19: 3698:Water supply 3550:Pipe marking 3523:and services 3519:Professions, 3467:Strap wrench 3407:Basin wrench 3386:Water heater 3381:Water filter 3294:Flush toilet 3269:Dehumidifier 3211:Trench drain 3191:Street elbow 3181:Safety valve 3166:Relief valve 3106:Needle valve 3091:Grinder pump 3061:Flow limiter 3046:Float switch 2981:Chopper pump 2961:Booster pump 2910:Tube bending 2855:Pipe support 2720:Water hammer 2700:Thermosiphon 2630:Neutral axis 2609: 2488:Vacuum sewer 2372:Sewer mining 2322:Ion exchange 2272:Chlorination 2194:Heavy metals 2151:Urban runoff 2091:Ion exchange 2075: 2071:Fecal sludge 1966: 1959:. 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Index

Grey water

membrane bioreactor
also spelled
domestic wastewater
sinks
showers
baths
washing machines
dishwashers
pathogens
blackwater
reuse
toilet flushing
irrigation
potable
anal area
urban water systems
water supply
clean water


constructed wetland
Oslo

membrane bioreactor
Frankfurt
human waste
toothpaste
face wash

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