Evaluation of the Feasibility of Implementing Biological Phosphorus Removal in Wastewater Treatment Plants

1991 ◽  
Vol 26 (4) ◽  
pp. 475-494
Author(s):  
Lise Raymond ◽  
Yves Comeau ◽  
Jean F. Riel ◽  
François G. Brière
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Phosphorus Removal ◽  
Wastewater Treatment Plants ◽  
Air Entrainment ◽  
Advanced Technology ◽  
Rating System ◽  
Batch Reactors ◽  
Biological Phosphorus Removal ◽  
Biological Phosphorus

Abstract A weighted rating system to evaluate the feasibility of implementing biological phosphorus removal to wastewater treatment plants was developed and applied to identify the most promising existing Quebec plants using activated sludge that may benefit from this advanced technology. Three main categories of criteria were considered, (A) phosphorus discharge standards, (B) influent and effluent characteristics and (C) process characteristics. The percentage of the total weight attributed to each category was 12%, 29% and 59%, respectively. The most important factors were proposed to be the plant flexibility and configuration, the influent BOD5/TP and TKN/COD ratios, the existence of a primary clarifier, the requirements to comply with phosphorus standards, the presence of a sand filter and the possibility of mixing without air entrainment the zones of the process that should not be aerated. Among the 16 activated sludge plants for which operating data was available for 1989, 9 showed an interesting potential for conversion to biological phosphorus removal (6 with aeration tanks, 1 with oxidation ditches and 2 with sequencing batch reactors). Operation and construction modifications were proposed to convert these 9 plants to biological phosphorus removal and the rating system was used to assess the beneficial effect of the proposed modifications. A preliminary cost estimate performed on 7 of these plants indicated that conversion costs to biological phosphorus removal were either negligible (4 or 5 plants) or comparable to the present value of the cost of chemicals over a 20-year period (2 plants). With these conversions, biological phosphorus removal could replace partially or completely chemical phosphorus precipitation, depending on the phosphorus standards, wastewater and plant characteristics.

Modelling of full-scale wastewater treatment plants with different treatment processes using the Activated Sludge Model no. 3

2001 ◽  
Vol 44 (1) ◽  
pp. 49-56 ◽  
Author(s):  
M. Wichern ◽  
F. Obenaus ◽  
P. Wulf ◽  
K.-H. Rosenwinkel
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Phosphorus Removal ◽  
Large Scale ◽  
Wastewater Treatment Plants ◽  
Biological Phosphorus Removal ◽  
Activated Sludge Model ◽  
Treatment Processes ◽  
Biological Phosphorus ◽  
P Removal

In 1999 the Activated Sludge Model no. 3 (ASM 3) by the IWA task Group on Mathematical Modeling for Design and Operation of Biological Wastewater Treatment was presented. The model is used for simulation of nitrogen removal. On the basis of a new calibration of the ASM 3 with the easy degradable COD measured by respiration simulation runs of this paper have been done. In 2000 a biological phosphorus removal module by the EAWAG was added to the calibrated version of ASM 3 and is now serving the current requirements for modelling the enhanced biological P-removal. Only little experiences with different load situations of large-scale wastewater treatment plants were made with both new models so far. This article reports the experiences with the simulation and calibration of the biological parameters using ASM 3 and the EAWAG BioP Module. Three different large-scale wastewater treatment plants in Germany with different treatment systems will be discussed (Koblenz: pre-denitrification; Hildesheim: simultaneous denitrification with EBPR; Duderstadt: intermediate denitrification with EBPR). Informations regarding the choice of kinetic and stoichiometric parameters will be given.

Efficiency of the Activated Sludge Model no. 3 for German wastewater on six different WWTPs

2003 ◽  
Vol 47 (11) ◽  
pp. 211-218 ◽  
Author(s):  
M. Wichern ◽  
M. Lübken ◽  
R. Blömer ◽  
K.-H. Rosenwinkel
Keyword(s):  
Wastewater Treatment ◽  
Activated Sludge ◽  
Phosphorus Removal ◽  
Large Scale ◽  
Wastewater Treatment Plants ◽  
Biological Parameters ◽  
Biological Phosphorus Removal ◽  
Activated Sludge Model ◽  
Biological Phosphorus ◽  
Activated Sludge Systems

In 1999, the Activated Sludge Model No. 3 by the IWA Task Group on Mathematical Modelling for the Design and Operation of Biological Wastewater Treatment was presented. The model is used for the simulation of nitrogen removal. The simulations in this paper were done on the basis of a new calibration of the ASM 3 by Koch et al., with the easily degradable COD measured by respiration. For modelling of EBPR the BioP-Module of Rieger et al., was used. Six German wastewater treatment plants were simulated during this research to test the existing set of parameters of the models on various large scale plants. It was shown that changes for nitrification and enhanced biological phosphorus removal in the set of biological parameters were necessary. Sensible parameters and recommended values are presented in this article. Apart from the values of the changed biological parameters, we will in our examination discuss the modelling of the different activated sludge systems and the influent fractioning of the COD. Two plants with simultaneous denitrification in the recirculation ditch (EBPR) are simulated, one with preliminary dentrification, one with intermittent denitrification (EBPR), one with cascade denitrification (EBPR), and one pilot plant according to the Johannesburg-process (EBPR) which was simulated over a period of three months.

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.

scholarly journals On the issue of the feasibility of using modern technologies for biological phosphorus removal in low-capacity wastewater treatment plants

2021 ◽  
Vol 937 (4) ◽  
pp. 042054
Author(s):  
Ivan Kulik ◽  
Elena Shuckaya
Keyword(s):  
Wastewater Treatment ◽  
Phosphorus Removal ◽  
Wastewater Treatment Plants ◽  
Phosphorus Compounds ◽  
Biogenic Elements ◽  
Biological Phosphorus Removal ◽  
Basic Principles ◽  
Biological Removal ◽  
Treatment Facilities ◽  
Biological Phosphorus

Abstract The article discusses the basic principles of wastewater treatment from biogenic elements, provides the necessary conditions for the biological removal of phosphorus compounds. The technology of pre-fermentation of the sediment of primary sedimentation tanks, options for its design, the main parameters of the process are described. Specific aspects of the operation of low-capacity wastewater treatment facilities are indicated and the expediency of using the technology of biological phosphorus removal in them is considered.

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