Record nummer 2053520
Titel artikel Balancing the organic load and light supply in symbiotic microalgal-bacterial biofilm reactors treating synthetic municipal wastewater
Auteur(s) Boelee, N.C. ; Temmink, H. ; Janssen, M. ; Buisman, C.J.N. ; Wijffels, R.H.
Tijdschrifttitel Ecological engineering : the journal of ecotechnology
Deel(Jaar)Nummer 64(2014)March
Paginering 213 - 221
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Trefwoorden (cab) afvalwaterbehandeling / biofilms / symbiose / algen / bacteriën / heterotrofe micro-organismen / fotosynthese / acetaten / stikstof / fosfor / nitrificatie / denitrificatie / biologische waterzuiveringsinstallaties / biobased economy
Rubrieken Afvalwaterbehandeling
Publicatie type Artikel
Taal Engels
Toelichting (Engels) Symbiotic microalgal-bacterial biofilms can be very attractive for municipal wastewater treatment. Microalgae remove nitrogen and phosphorus and simultaneously produce the oxygen that is required for the aerobic, heterotrophic degradation of organic pollutants. For the application of these biofilms in new wastewater treatment systems, the engineering aspects need to be investigated to obtain a balanced system where no additional oxygen is required. The aim of this study was to obtain a symbiotic biofilm of microalgae and bacteria which takes up the calculated amounts of acetate, N and P and which does not require additional O2 for the heterotrophic degradation of organic pollutants. Firstly, it was determined if it was possible to grow such a biofilm by monitoring the effluent concentrations of acetate, N and P. Secondly, acetate and light were subsequently removed to prove the symbiotic relationship between microalgae and bacteria. Finally, it was investigated if nitrification and denitrification could provide additional N removal in the biofilm.
Betrokken instanties Wetsus
WUR, Sectie Milieutechnologie
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