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Published on: May 15, 2017
Characterisation and biological treatment of greywater
L Hernández Leal1, G Zeeman, H Temmink
1Wetsus, Centre for sustainable water technology, P.O. Box 1113 8900 CC, Leeuwarden, The Netherlands. lucia.hernandez@wetsus.nl
Abstract:
Characterisation of greywater was conducted in two different greywater streams in the Netherlands (Groningen and Sneek). The concentrations of macropollutants and nutrients measured were very different in both streams; in particular the COD was 425 mg/L in Groningen's water whereas in Sneek it was 1,583 mg/L. The aerobic treatment of greywater in a fed-batch reactor led to a 90% removal of COD at different organic loading rates. Anaerobically, the removal reached 40% COD removal on average, the possible reason being the high amount of surfactants present in the influent.
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