Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

Record number 411244
Title Operation of an aquatic worm reactor suitable for sludge reduction at large scale
Author(s) Hendrickx, T.L.G.; Elissen, H.J.H.; Temmink, B.G.; Buisman, C.J.N.
Source Water Research 45 (2011)16. - ISSN 0043-1354 - p. 4923 - 4929.
DOI http://dx.doi.org/10.1016/j.watres.2011.06.031
Department(s) Sub-department of Environmental Technology
WIMEK
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) afvalwaterbehandeling - huishoudens - rioolslib - geactiveerd slib - bioreactoren - ontwerp - slibzuivering - aquatische wormen - oligochaeta - waste water treatment - households - sewage sludge - activated sludge - bioreactors - design - sludge treatment - aquatic worms - eating waste sludge - activated-sludge
Categories Waste Water Treatment
Abstract Treatment of domestic waste water results in the production of waste sludge, which requires costly further processing. A biological method to reduce the amount of waste sludge and its volume is treatment in an aquatic worm reactor. The potential of such a worm reactor with the oligochaete Lumbriculus variegatus has been shown at small scale. For scaling up purposes, a new configuration of the reactor was designed, in which the worms were positioned horizontally in the carrier material. This was tested in a continuous experiment of 8 weeks where it treated all the waste sludge from a lab-scale activated sludge process. The results showed a higher worm growth rate compared to previous experiments with the old configuration, whilst nutrient release was similar. The new configuration has a low footprint and allows for easy aeration and faeces collection, thereby making it suitable for full scale application.
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