Anammox biofilm in activated sludge swine wastewater treatment plants.
Chemosphere
; 167: 300-307, 2017 Jan.
Article
en En
| MEDLINE
| ID: mdl-27728889
ABSTRACT
We investigated anammox with a focus on biofilm in 10 wastewater treatment plants (WWTPs) that use activated sludge treatment of swine wastewater. In three plants, we found red biofilms in aeration tanks or final sedimentation tanks. The biofilm had higher anammox 16S rRNA gene copy numbers (up to 1.35 × 1012 copies/g-VSS) and higher anammox activity (up to 295 µmoL/g-ignition loss/h) than suspended solids in the same tank. Pyrosequencing analysis revealed that Planctomycetes accounted for up to 17.7% of total reads in the biofilm. Most of them were related to Candidatus Brocadia or Ca. Jettenia. The highest copy number and the highest proportion of Planctomycetes were comparable to those of enriched anammox sludge. Thus, swine WWTPs that use activated sludge treatment can fortuitously acquire anammox biofilm. Thus, concentrated anammox can be detected by focusing on red biofilm.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Aguas del Alcantarillado
/
Purificación del Agua
/
Biopelículas
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Reactores Biológicos
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Aguas Residuales
/
Amoníaco
Límite:
Animals
Idioma:
En
Revista:
Chemosphere
Año:
2017
Tipo del documento:
Article
País de afiliación:
Japón