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Water Science & Technology Vol 55 No 8-9 pp 27–33 © Paques 2007 doi:10.2166/wst.2007.238

Full-scale granular sludge Anammox process

W.R. Abma*, C.E. Schultz*, J.W. Mulder**, W.R.L. van der Star***, M. Strous****, T. Tokutomi***** and M.C.M. van Loosdrecht***

*Paques BV, T. De Boerstraat 24, 8560 AB , Balk, The Netherlands (E-mail: w.abma@paques.nl)
**Waterschap Hollandse Delta, Johan de Wittstraat 40, 3300 AL , Dordrecht, The Netherlands (E-mail: j.mulder@wshd.nl)
***Department of Biotechnology, Delft University of Technology, Julianalaan, 67, 2628 BC, The Netherlands (E-mail: m.c.m.vanloosdrecht@tnw.tudelft.nl)
****Department of Microbiology, Radboud University Nijmegen, Toernooiveld 1, 6525 ED , Nijmegen, The Netherlands (E-mail: m.strous@science.ru.nl)
*****Kurita Water Industries LTD. 1-1, Gochoyama, Kawada, Nogi-Machi, Shimotsuga-Gun, Tochigi, 329-0125, Japan (E-mail: takaaki.tokutomi@kurita.co.jp)


The start-up of the first full scale Anammox reactor is complete. The reactor shows stable operation, even at loading rates of 10 kg N/m3.d. This performance is the result of the formation of Anammox granules, which have a high density and settling velocities exceeding 100 m/h. With this performance, the Anammox granular sludge technology has been proven on full scale.

Keywords: Anammox; full scale; granular sludge; nitrogen

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