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Record nummer 2009585
Titel artikel Autotrophic nitrogen removal from low strength waste water at low temperature
Auteur(s) Hendrickx, T.L.G. ; Wang, Y. ; Kampman, C. ; Zeeman, G. ; Temmink, H. ; Buisman, C.J.N.
Tijdschrifttitel Water research : the journal of the International Association on Water Quality
Deel(Jaar)Nummer 46(2012)7
Paginering 2187 - 2193
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Trefwoorden (cab) afvalwaterbehandeling / afvalwaterbehandelingsinstallaties / stikstof / verwijdering / denitrificatie / temperatuur / anaërobe behandeling / ammonium / oxidatie / energiebesparing / stedelijk afvalwater
Rubrieken Afvalwaterbehandeling
Publicatie type Artikel
Taal Engels
Toelichting (Engels) Direct anaerobic treatment of municipal waste waters allows for energy recovery in the form of biogas. A further decrease in the energy requirement for waste water treatment can be achieved by removing the ammonium in the anaerobic effluent with an autotrophic process, such as anammox. Until now, anammox has mainly been used for treating warm (>30 °C) and concentrated (>500 mg N/L) waste streams. Application in the water line of municipal waste water treatment poses the challenges of a lower nitrogen concentration (<100 mg N/L) and a lower temperature (≤20 °C). Good biomass retention and a short hydraulic retention time are required to achieve a sufficiently high nitrogen loading rate. For this purpose a 4.5 L gaslift reactor was inoculated with a small amount of anammox granules and operated for 253 days at 20 °C.
Betrokken instanties WUR, Sectie Milieutechnologie
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