Predicted Distributed State Effects on Enhanced Biological Phosphorus Removal in a 5-Stage Bardenpho Wastewater Treatment Configuration

2008 ◽  
Vol 80 (5) ◽  
pp. 454-463 ◽  
Author(s):  
Andrew J. Schuler ◽  
Yao Xiao
Keyword(s):  
Wastewater Treatment ◽  
Phosphorus Removal ◽  
Enhanced Biological Phosphorus Removal ◽  
Biological Phosphorus Removal ◽  
Biological Phosphorus

Presence of Rhodocyclus in a full-scale wastewater treatment plant and their participation in enhanced biological phosphorus removal

2002 ◽  
Vol 46 (1-2) ◽  
pp. 123-128 ◽  
Author(s):  
J.L. Zilles ◽  
C.-H. Hung ◽  
D.R. Noguera
Keyword(s):  
Wastewater Treatment ◽  
Phosphorus Removal ◽  
Fluorescent In Situ Hybridization ◽  
Wastewater Treatment Plants ◽  
Full Scale ◽  
Enhanced Biological Phosphorus Removal ◽  
Biological Phosphorus Removal ◽  
Polyphosphate Accumulating Organisms ◽  
Biological Phosphorus

The objective of this research was to assess the relevance of organisms related to Rhodocyclus in enhanced biological phosphorus removal in full-scale wastewater treatment plants. The presence of these organisms in full-scale plants was first confirmed by fluorescent in situ hybridization. To address which organisms were involved in phosphorus removal, a method was developed which selected polyphosphate-accumulating organisms from activated sludge samples by DAPI staining and flow cytometry. Sorted samples were characterized using fluorescent in situ hybridization. The results of these analyses confirmed the presence of organisms related to Rhodocyclus in full-scale wastewater treatment plants and supported the involvement of these organisms in enhanced biological phosphorus removal. However, a significant fraction of the polyphosphate-accumulating organisms were not related to Rhodocyclus.

Advanced wastewater treatment plants in lagoons combined with biological contactors

1994 ◽  
Vol 29 (12) ◽  
pp. 13-21
Author(s):  
P. Schleypen
Keyword(s):  
Wastewater Treatment ◽  
Removal Efficiency ◽  
Phosphorus Removal ◽  
Wastewater Treatment Plants ◽  
Enhanced Biological Phosphorus Removal ◽  
Biological Phosphorus Removal ◽  
Process Stability ◽  
Biological Sludge ◽  
Rotating Biological Contactors ◽  
Biological Phosphorus

Full-scale investigations have demonstrated that wastewater lagoons combined with rotating biological contactors can be installed for denitrification without much effort when designed for nitrification. By recirculation of a mixture of nitrified wastewater and biological sludge from the outlet of the high loaded sedimentation tank back to the inlet of the sedimentation pond the removal efficiency was consistently high combined with a high process stability. In addition a considerable amount of enhanced biological phosphorus removal could be attained simultaneously.

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