Login

Hydrotheek

Record nummer 2172775
Titel artikel Energy efficient treatment of A-stage effluent: pilot-scale experiences with shortcut nitrogen removal
Auteur(s) Seuntjens, D. ; Bundervoet, B.L.M. ; Mollen, H. ; De Mulder, C. ; Wypkema, E. ; Verliefde, A. ; Nopens, I. ; Colsen, J.G.M. ; Vlaeminck, S.E.
Tijdschrifttitel Water science and technology : a journal of the International Association on Water Pollution Research
Deel(Jaar)Nummer 73(2016)9
Paginering 2150 - 2158
Online full text
Op papier Haal het document, vind aanverwante informatie of gebruik andere SFX-diensten
Trefwoorden (cab) afvalwaterbehandeling / granulering / stikstof / afvoerwater / slib
Rubrieken Afvalwaterbehandeling
Publicatie type Artikel
Taal Engels
Toelichting (Engels) Energy autarky of sewage treatment plants, while reaching chemical oxygen demand (COD) and N discharge limits, can be achieved by means of shortcut N-removal. This study presents the results of a shortcut N-removal pilot, located at the biological two-‘stage (high/low rate) wastewater treatment plant of Breda, The Netherlands. The pilot treated real effluent of a high-rate activated sludge (COD/N ¼ 3), fed in a continuous mode at realistic loading rates (90–100 g N/(m3·d)). The operational strategy, which included increased stress on the sludge settling velocity, showed development of a semi-granular sludge, with average particle size of 280 μm (ø4,3), resulting in increased suppression of nitrite-oxidizing bacteria. The process was able to remove part of the nitrogen (51 ±23%) over nitrite, with COD/N removal ratios of 3.2±0.9. The latter are lower than the current operation of the full-scale B-stage in Breda (6.8–9.4), showing promising results for carbon-efficient N-removal, while producing a well settling sludge (SVI30 <100 mL/g).
Betrokken instanties Waterschap Brabantse Delta
Reacties
Er zijn nog geen reacties. U kunt de eerste schrijven!
Schrijf een reactie

To support researchers to publish their research Open Access, deals have been negotiated with various publishers. Depending on the deal, a discount is provided for the author on the Article Processing Charges that need to be paid by the author to publish an article Open Access. A discount of 100% means that (after approval) the author does not have to pay Article Processing Charges.

For the approval of an Open Access deal for an article, the corresponding author of this article must be affiliated with Wageningen University & Research.