Greywater
Videos
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
Membrane bioreactor
Videos
Membrane bioreactors are combinations of membrane processes like microfiltration or ultrafiltration with a biological wastewater treatment process, the activated sludge process. These technologies are
Greywater
…backyard' small scale systems, such as small ponds or biodiverse landscapes that naturally purify greywater. Bioreactors or more compact systems such as membrane bioreactors which are a variation of the activated sludge process and is also used to treat sewage. Mechanical systems (sand filtration, lava filter systems and…
Simple schematic describing the MBR process
Schematic of conventional activated sludge process (top) and external (side stream) membrane bioreactor (bottom)
UF membrane side stream configuration
A reinforced immersed hollow fiber membrane cassette