Metabolic Factors Affecting Enhanced Phosphorus Uptake by Activated Sludge

Boughton, William H.; Gottfried, Richard J.; Sinclair, Nicholas; Yall, Irving

doi:10.1128/aem.22.4.571-577.1971

Cited by 17 publications

(6 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…At 42.5°C, a significant decrease in these rates was observed, and at 45°C, the EBPR mechanisms were virtually absent. Boughton et al (1971) found that the degree of soluble aerobic ortho-P uptake varied over the temperature range from 5 o C to 60 o C, and reached a maximum at approximately 30 o C.…”

Section: Biological Phosphorus Removalmentioning

confidence: 96%

“…Investigations into biological phosphorus removal at process temperatures above 30 o C include those of Mamais and Jenkins (1992), Jones and Stephenson (1996) and Boughton et al (1971). In laboratory experiments on municipal wastewater, Mamais and Jenkins (1992) found that, at an MCRT of approximately 2.9 d, the temperature dependency of the EBPR organism growth rate, the anaerobic ortho-P release rate, the anaerobic soluble COD uptake rate, and the aerobic soluble ortho-P uptake rate could be described by an Arrhenius equation for mixed liquor temperatures between 10 o C and 30°C.…”

Section: Biological Phosphorus Removalmentioning

confidence: 99%

See 1 more Smart Citation

The Effect of High Temperatures on BNR Process Performance

Rabinowitz¹,

Jenkins²,

Neethling³

2004

proc water environ fed

View full text Add to dashboard Cite

The ever-expanding worldwide application of biological nutrient removal (BNR) technology is generating a greater appreciation for the performance of BNR processes under different operating conditions. This paper examines the effects of high process temperature on the biological phosphorus and nitrogen removal mechanisms and the sludge settling properties in BNR activated sludge processes. These effects are illustrated with data from three full-scale BNR facilities in which enhanced biological phosphorus removal (EBPR) failed, but nitrification and denitrification were maintained at mixed liquor temperatures of approximately 30°C.

show abstract

Section: Biological Phosphorus Removalmentioning

confidence: 96%

Section: Biological Phosphorus Removalmentioning

confidence: 99%

The Effect of High Temperatures on BNR Process Performance

Rabinowitz¹,

Jenkins²,

Neethling³

2004

proc water environ fed

View full text Add to dashboard Cite

show abstract

“…However, consensus is lacking on the effect of temperature on phosphorus removal efficiency and stability. Several studies have documented better EBPR efficiency with increasing temperatures, suggesting that EBPR performance may be partially dependent on temperature, as is typical of many biochemical reactions (Baetens et al, 1999;Boughton et al, 1971;Brdjanovic et al, 1997Brdjanovic et al, , 1998Jones and Stephenson, 1996;Jones et al, 1987;Mamais and Jenkins, 1992;McClintock et al, 1993). These studies found either inhibition or reduction of phosphorus removal as temperatures dropped below 20uC and suggested various optimum temperatures, generally ranging from 24 to 37uC, with critical values of mean cell residence times to prevent PAO washout.…”

Section: Competition Between Polyphosphate-and Glycogen-accumulating mentioning

confidence: 98%

Research Advances and Challenges in the Microbiology of Enhanced Biological Phosphorus Removal—A Critical Review

Gebremariam

Beutel

Christian

et al. 2011

Water Environment Research

105

View full text Add to dashboard Cite

Enhanced biological phosphorus removal (EBPR) is a well-established technology for removing phosphorus from wastewater. However, the process remains operationally unstable in many systems, primarily because there is a lack of understanding regarding the microbiology of EBPR. This paper presents a review of advances made in the study of EBPR microbiology and focuses on the identification, enrichment, classification, morphology, and metabolic capacity of polyphosphate-and glycogen-accumulating organisms. The paper also highlights knowledge gaps and research challenges in the field of EBPR microbiology. Based on the review, the following recommendations regarding the future direction of EBPR microbial research were developed: (1) shifting from a reductionist approach to a more holistic system-based approach, (2) using a combination of culture-dependent and cultureindependent techniques in characterizing microbial composition, (3) integrating ecological principles into system design to enhance stability, and (4) reexamining current theoretical explanations of why and how EBPR occurs. Water Environ. Res., 83, 195 (2011).

show abstract

“…However, no systematic study of the temperature effects on EBPR is available, nor have the lower MCRT limits of EBPR been determined. Shapiro et al (1967) reported that anaerobic orthoPsol release rates decreased by 2.1-2.6 times for every 10 0 C temperature decrease in the range 10-30 o C. Boughton et al (1971) found 24-37 0 C to be the optimum range for aerobic orthoPsol uptake. Juni �1978) reported temperature optima for Acinetobacter growth of 34-35 c. Du Pree z et al (1978) cultured Acinetobacter in the temperature range 16-40 0 C and obtained the highest maximum growth rates between 29-35 0 C; maximum growth rates de creased rapidly at higher temperatures and no growth occurred at 41 0 C. Spatzierer et al (1985) observed a decrease of P removal efficiency in a full scale EBPR plant at temperatures below 10 0 C. In the 200 mgd Hyperion, Los Angeles CA plant, EBPR at 1.6 days MCRT was more prone to washout at 23 0 C than at 27 0 C (Shao, 1991).…”

Section: Introductionmentioning

confidence: 99%

The Effects of MCRT and Temperature on Enhanced Biological Phosphorus Removal

Mamais

Jenkins

1992

Water Science and Technology

View full text Add to dashboard Cite

Temperature and low mean cell residence time (MCRT) effects on enhanced biological phosphorus removal (EBPR) were investigated in continuous flow bench-scale activated sludge systems treating settled domestic wastewater supplemented with 50 mg/l acetate over ranges of MCRT and temperature of 2-4 days and 13.5-20° C respectively. Temperature effects (10-37°C) on anaerobic soluble COD (CODsol) uptake and soluble P release (Psol) and aerobic Psol uptake rates were studied in batch. For the temperature range studied, EBPR functioned efficiently at MCRT ≥ 2.9 day; below 2.9 day MCRT EBPR is lost at an MCRT value that depends on temperature. Temperature effects on MCRT for EBPR (13.5-20°C), anaerobic CODsol uptake and Psol release rates and aerobic Psol uptake rates (10-30°C) are described by similar Arrhenius plots indicating a similar temperature dependency for all biological processes involved in EBPR.

show abstract

Metabolic Factors Affecting Enhanced Phosphorus Uptake by Activated Sludge

Cited by 17 publications

References 4 publications

The Effect of High Temperatures on BNR Process Performance

The Effect of High Temperatures on BNR Process Performance

Research Advances and Challenges in the Microbiology of Enhanced Biological Phosphorus Removal—A Critical Review

The Effects of MCRT and Temperature on Enhanced Biological Phosphorus Removal

Contact Info

Product

Resources

About