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Greywater pollution variability and loadings
Technical University of Denmark, Denmark.ORCID iD: 0000-0002-5472-8553
Technical University of Denmark, Denmark.ORCID iD: 0000-0002-7013-9193
Technical University of Denmark, Denmark.
Technical University of Denmark, Denmark.ORCID iD: 0000-0003-2838-6673
2009 (English)In: Ecological Engineering: The Journal of Ecotechnology, ISSN 0925-8574, E-ISSN 1872-6992, Vol. 35, no 5, 661-669 p.Article in journal (Refereed) Published
Abstract [en]

Small on-site greywater treatment and reuse plants are susceptible to high short-term variation in flow and pollutant concentrations. As demonstrated in this study of a bathroom greywater plant in Copenhagen, Denmark, the flow ranges from no-flow periods to high-flow periods reaching 34 l min−1. Concentrations of both macro- and micro-pollutants (organic matter and parabens) were found to range by several orders of magnitude in the influent, based on sampling every 20 min. Paraben degradation was proven to occur in the rotating biological contactor (RBC), while the remnant organic matter in the effluent was proved not to be readily degradable. Ammonium content, presumably from urine contamination, was found to undergo nitrification in the RBC. Mass flow (daily loads) for individual substances was calculated for several pollutants. Macropollutants were found to be generated in low numbers of grams per person per day, whereas the paraben loadings were below 1 mg per person per day. These data are highly relevant for comparing decentralised treatment options with existing end-of-pipe treatments, for feeding into risk assessments and for design purposes.

Place, publisher, year, edition, pages
2009. Vol. 35, no 5, 661-669 p.
Keyword [en]
On-site treatment, Parabens, RBC, Grey wastewater, Mass flow, Daily load
National Category
Environmental Sciences
Research subject
Natural Science, Environmental Science
Identifiers
URN: urn:nbn:se:lnu:diva-66707DOI: 10.1016/j.ecoleng.2008.10.015OAI: oai:DiVA.org:lnu-66707DiVA: diva2:1120003
Available from: 2017-07-05 Created: 2017-07-05 Last updated: 2017-11-15Bibliographically approved

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Eriksson, Eva

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Eriksson, EvaAndersen, Henrik RasmusLedin, Anna
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