Greywater
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Greywater or sullage refers to domestic wastewater generated in households or office buildings from streams without substantial fecal contamination, i.e. all streams except for the wastewater from toi
Left: greywater sample from an office building. Right: Same greywater after treatment in membrane bioreactor
Example of a source of greywater in the household: dirty water from cleaning the floor
Urban decentralized greywater treatment with constructed wetland in Oslo
Greywater treatment plant with membrane bioreactor in the basement of an office building in Frankfurt
Reclaimed water
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Water reclamation is the process of converting municipal wastewater or sewage and industrial wastewater into water that can be reused for a variety of purposes. It is also called wastewater reuse, wat
Greywater
…recycle than sewage because of lower levels of contaminants. If collected using a separate plumbing system from blackwater, domestic greywater can be recycled 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…
Sequence of reclamation from left: raw sewage, sewage treatment plant effluent, and finally reclaimed water (after several treatment steps)
Irrigation water is pumped from this tank which stores effluent received from a constructed wetland in Haran-Al-Awamied, Syria.
Reclaimed water sign in Dunedin, Florida, United States
A lavender-colored pipeline carrying non-potable water in a dual piping system in Mountain View, California, U.S.