Phosphorus recovery through struvite precipitation from wastewater: effect of the competitive ions

Resultado de la investigación: Contribución a una revistaArtículoInvestigaciónrevisión exhaustiva

21 Citas (Scopus)

Resumen

© 2014, © 2014 Balaban Desalination Publications. All rights reserved. In wastewater treatment plants (WWTP), struvite precipitation occurs spontaneously under conditions which are influenced by factors such as: concentration of Mg2+, (Formula presented.) and (Formula presented.) , pH, temperature, and competitive ions. These parameters are often difficult to control and, spontaneous precipitation of struvite creates operational problems in WWTP. Struvite is also a potentially marketable product as a fertilizer alternative. For these two reasons it is important to study the principles of struvite precipitation, and evaluate the parameters that control this process. In this study, the influence of the ions Ca2+ and Al3+ in struvite precipitation process was evaluated using three different molar ratios of Mg2+:Ca2+ and Mg2+:Al3+. The products were characterized by thermogravimetric analysis, X-ray diffraction, and scanning electron micrograph. The results showed that calcium interfered in struvite precipitation only when this is in equal or greater molar ratios to magnesium, while aluminum inhibited completely the production of struvite even at lower aluminum molar ratios to magnesium.
Idioma originalInglés estadounidense
Páginas (desde-hasta)2468-2479
Número de páginas12
PublicaciónDesalination and Water Treatment
Volumen54
N.º9
DOI
EstadoPublicada - 1 ene 2015

Huella dactilar

struvite
Wastewater treatment
Magnesium
Phosphorus
Wastewater
phosphorus
Aluminum
wastewater
Recovery
ion
Ions
Desalination
Fertilizers
Thermogravimetric analysis
Calcium
Scanning
X ray diffraction
Electrons
magnesium
aluminum

Citar esto

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title = "Phosphorus recovery through struvite precipitation from wastewater: effect of the competitive ions",
abstract = "{\circledC} 2014, {\circledC} 2014 Balaban Desalination Publications. All rights reserved. In wastewater treatment plants (WWTP), struvite precipitation occurs spontaneously under conditions which are influenced by factors such as: concentration of Mg2+, (Formula presented.) and (Formula presented.) , pH, temperature, and competitive ions. These parameters are often difficult to control and, spontaneous precipitation of struvite creates operational problems in WWTP. Struvite is also a potentially marketable product as a fertilizer alternative. For these two reasons it is important to study the principles of struvite precipitation, and evaluate the parameters that control this process. In this study, the influence of the ions Ca2+ and Al3+ in struvite precipitation process was evaluated using three different molar ratios of Mg2+:Ca2+ and Mg2+:Al3+. The products were characterized by thermogravimetric analysis, X-ray diffraction, and scanning electron micrograph. The results showed that calcium interfered in struvite precipitation only when this is in equal or greater molar ratios to magnesium, while aluminum inhibited completely the production of struvite even at lower aluminum molar ratios to magnesium.",
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Phosphorus recovery through struvite precipitation from wastewater: effect of the competitive ions. / Acelas, Nancy Y.; Flórez, Elizabeth; López, Diana.

En: Desalination and Water Treatment, Vol. 54, N.º 9, 01.01.2015, p. 2468-2479.

Resultado de la investigación: Contribución a una revistaArtículoInvestigaciónrevisión exhaustiva

TY - JOUR

T1 - Phosphorus recovery through struvite precipitation from wastewater: effect of the competitive ions

AU - Acelas, Nancy Y.

AU - Flórez, Elizabeth

AU - López, Diana

PY - 2015/1/1

Y1 - 2015/1/1

N2 - © 2014, © 2014 Balaban Desalination Publications. All rights reserved. In wastewater treatment plants (WWTP), struvite precipitation occurs spontaneously under conditions which are influenced by factors such as: concentration of Mg2+, (Formula presented.) and (Formula presented.) , pH, temperature, and competitive ions. These parameters are often difficult to control and, spontaneous precipitation of struvite creates operational problems in WWTP. Struvite is also a potentially marketable product as a fertilizer alternative. For these two reasons it is important to study the principles of struvite precipitation, and evaluate the parameters that control this process. In this study, the influence of the ions Ca2+ and Al3+ in struvite precipitation process was evaluated using three different molar ratios of Mg2+:Ca2+ and Mg2+:Al3+. The products were characterized by thermogravimetric analysis, X-ray diffraction, and scanning electron micrograph. The results showed that calcium interfered in struvite precipitation only when this is in equal or greater molar ratios to magnesium, while aluminum inhibited completely the production of struvite even at lower aluminum molar ratios to magnesium.

AB - © 2014, © 2014 Balaban Desalination Publications. All rights reserved. In wastewater treatment plants (WWTP), struvite precipitation occurs spontaneously under conditions which are influenced by factors such as: concentration of Mg2+, (Formula presented.) and (Formula presented.) , pH, temperature, and competitive ions. These parameters are often difficult to control and, spontaneous precipitation of struvite creates operational problems in WWTP. Struvite is also a potentially marketable product as a fertilizer alternative. For these two reasons it is important to study the principles of struvite precipitation, and evaluate the parameters that control this process. In this study, the influence of the ions Ca2+ and Al3+ in struvite precipitation process was evaluated using three different molar ratios of Mg2+:Ca2+ and Mg2+:Al3+. The products were characterized by thermogravimetric analysis, X-ray diffraction, and scanning electron micrograph. The results showed that calcium interfered in struvite precipitation only when this is in equal or greater molar ratios to magnesium, while aluminum inhibited completely the production of struvite even at lower aluminum molar ratios to magnesium.

U2 - 10.1080/19443994.2014.902337

DO - 10.1080/19443994.2014.902337

M3 - Article

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JO - Desalination and Water Treatment

JF - Desalination and Water Treatment

SN - 1944-3994

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