1985
DOI: 10.2166/wst.1985.0221
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Kinetics of Biological Phosphorus Release

Abstract: Experimental observations indicate that the magnitude of biological excess P uptake is linked strongly to the magnitude of P release in the anaerobic reactor. A theory describing the kinetics of P release is presented in terms of the readily biodegradable COD in the influent, the non-polyP heterotrophic mass, the anaerobic mass fraction and the reactor flow regime. Observed P release conforms well to that predicted over a wide range of wastewater characteristics and process conditions.

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Cited by 88 publications
(39 citation statements)
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“…The UASB setup had been previously developed by Wentzel et al (1985) for the purpose of treating winery effluent. A schematic representation of the labo- ratory-scale UASB reactor is shown in Figure 1.…”
Section: Uasb Reactormentioning
confidence: 99%
“…The UASB setup had been previously developed by Wentzel et al (1985) for the purpose of treating winery effluent. A schematic representation of the labo- ratory-scale UASB reactor is shown in Figure 1.…”
Section: Uasb Reactormentioning
confidence: 99%
“…This involved the addition of sodium bicarbonate (500 mg dm À3 ) to the R1 in¯uent from day 73 onwards. The pH values in the various reactors on day 71, before pH adjustment, were 6.14 (anaerobic), 6.02 (anoxic) and 5.93 (oxic). On day 74, the day after pH adjustment the pH had increased in all reactors to 7.2 (anaerobic), 6.88 (anoxic) and 6.72 (oxic).…”
Section: Effects Of Pump Failure and Remediation Stepsmentioning
confidence: 99%
“…Entonces, el fenómeno de liberación de fósforo se detendrá, y será sustituido por el de captación. Varios investigadores han descrito la captación de fósforo en condiciones anóxicas empleando nitrato como donador de electrones (Wentzel et al, 1985;Comeau et al, 1987;Kerrn-Jespersen y Henze, 1993;Kerrn-Jespersen et al, 1994), explicando que cuando se introducen nitratos a la fase anaerobia, la liberación de P se ve inhibida ya que se produce una respiración anóxica a base de nitratos, y el fenómeno que entonces predominará será el de bioacumulación de fósforo. De esta forma, es necesario conseguir un ambiente anaerobio estricto para que se produzca la liberación de fósforo y captación de materia orgánica, ya que la presencia de óxidos de nitrógeno aumentan el potencial redox de la fase anaerobia, disminuyendo de esta forma la cinética de liberación de fósforo.…”
Section: Nitratos Y Nitritosunclassified
“…De este modo, Wentzel et al (1985) describen la cinética de liberación de fósforo en términos de la materia orgánica de rápida degradación presente en el afluente, la masa de heterótrofos (no BAF), la fracción de la masa anaerobia, y el régimen de flujo del reactor. Indican que se puede modelar la cinética de liberación de fósforo como una ecuación de primer orden.…”
Section: Modelos Cinéticosunclassified