Greywater

（重定向自Grey water）

Example of a source of greywater in the household: dirty water from cleaning the floor

Urban decentralized greywater treatment with constructed wetland in Oslo, Norway

Greywater treatment plant with membrane bioreactor in the basement of an office building in Frankfurt, Germany

Greywater (also spelled graywater) or sullage is all wastewater 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, e.g. sinks, showers, baths, clothes washing machines or dish washers. As greywater contains fewer pathogens than domestic wastewater, it is generally safer to handle and easier to treat and reuse onsite for toilet flushing, landscape or crop irrigation, and other non-potable uses. However, the use of non-toxic and low-sodium soap and personal care products is recommended to protect vegetation when reusing greywater for irrigation purposes. The application of greywater reuse in urban water systems provides substantial benefits for both the water supply subsystem by reducing the demand for fresh clean water as well as the wastewater subsystems by reducing the amount of wastewater required to be conveyed and treated.

单词	Grey water
释义	Grey water 英语例句库 Grey water enters a soakaway via a grease trap. 废水通过油脂分离器后汇入渗水坑。 At its farthest end, three glaciers meet to dump their effluvia into the milky grey glacial water, launching massive igloo icebergs into the lake with thunderous splashes. 在最远的一端，三条冰河汇聚到一处，将硕大的冰块注入奶白色的河流中，冰块互相碰撞，水花四溅，形成令人叹为观止的奇景。原声例句一次赌约 It is miles and miles of blue and grey water with nothing to see on the horizon. 它有绵长的蓝色和灰色的水，在地平线上看不到任何东西。哈利波特与魔法石 The tub was full of what looked like dirty rags swimming in grey water. 发现一盆灰黑色的水里泡着像破抹布似的东西。英语百科 Greywater （重定向自Grey water） Greywater (also spelled graywater) or sullage is all wastewater 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, e.g. sinks, showers, baths, clothes washing machines or dish washers. As greywater contains fewer pathogens than domestic wastewater, it is generally safer to handle and easier to treat and reuse onsite for toilet flushing, landscape or crop irrigation, and other non-potable uses. However, the use of non-toxic and low-sodium soap and personal care products is recommended to protect vegetation when reusing greywater for irrigation purposes. The application of greywater reuse in urban water systems provides substantial benefits for both the water supply subsystem by reducing the demand for fresh clean water as well as the wastewater subsystems by reducing the amount of wastewater required to be conveyed and treated.
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