Effect of the stirring speed on the struvite formation using the centrate from a WWTP
ABSTRACT : The formation of struvite (MgNH4PO4·6H2O) for nutrient recovery in wastewater treatment plants has been widely investigated; however, little attention has been paid to the effect of stirring speeds on the resulting particle size, which could affect its agronomic value as a slow-release fe...
- Autores:
-
González Morales, Carolina
Camargo Valero, Miller Alonso
Molina Pérez, Francisco José
Fernández, Belén
- Tipo de recurso:
- Article of investigation
- Fecha de publicación:
- 2019
- Institución:
- Universidad de Antioquia
- Repositorio:
- Repositorio UdeA
- Idioma:
- eng
- OAI Identifier:
- oai:bibliotecadigital.udea.edu.co:10495/24951
- Acceso en línea:
- http://hdl.handle.net/10495/24951
https://revistas.udea.edu.co/index.php/ingenieria/article/view/337569
- Palabra clave:
- Gradiente de velocidad
Velocity gradient
Estruvita
Struvite
Agua residual
Waste water
Fósforo
Phosphorus
Desarrollo sostenible
Sustainable development
Recuperación de fósforo
Cristalización de estruvita
http://aims.fao.org/aos/agrovoc/c_5804
http://aims.fao.org/aos/agrovoc/c_35332
http://vocabularies.unesco.org/thesaurus/concept1882
- Rights
- openAccess
- License
- http://creativecommons.org/licenses/by-nc-sa/2.5/co/
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| dc.title.spa.fl_str_mv |
Effect of the stirring speed on the struvite formation using the centrate from a WWTP |
| dc.title.alternative.spa.fl_str_mv |
Efecto de la velocidad de agitación en la formación de estruvita usando el centrado de una PTAR |
| title |
Effect of the stirring speed on the struvite formation using the centrate from a WWTP |
| spellingShingle |
Effect of the stirring speed on the struvite formation using the centrate from a WWTP Gradiente de velocidad Velocity gradient Estruvita Struvite Agua residual Waste water Fósforo Phosphorus Desarrollo sostenible Sustainable development Recuperación de fósforo Cristalización de estruvita http://aims.fao.org/aos/agrovoc/c_5804 http://aims.fao.org/aos/agrovoc/c_35332 http://vocabularies.unesco.org/thesaurus/concept1882 |
| title_short |
Effect of the stirring speed on the struvite formation using the centrate from a WWTP |
| title_full |
Effect of the stirring speed on the struvite formation using the centrate from a WWTP |
| title_fullStr |
Effect of the stirring speed on the struvite formation using the centrate from a WWTP |
| title_full_unstemmed |
Effect of the stirring speed on the struvite formation using the centrate from a WWTP |
| title_sort |
Effect of the stirring speed on the struvite formation using the centrate from a WWTP |
| dc.creator.fl_str_mv |
González Morales, Carolina Camargo Valero, Miller Alonso Molina Pérez, Francisco José Fernández, Belén |
| dc.contributor.author.none.fl_str_mv |
González Morales, Carolina Camargo Valero, Miller Alonso Molina Pérez, Francisco José Fernández, Belén |
| dc.subject.decs.none.fl_str_mv |
Gradiente de velocidad Velocity gradient Estruvita Struvite |
| topic |
Gradiente de velocidad Velocity gradient Estruvita Struvite Agua residual Waste water Fósforo Phosphorus Desarrollo sostenible Sustainable development Recuperación de fósforo Cristalización de estruvita http://aims.fao.org/aos/agrovoc/c_5804 http://aims.fao.org/aos/agrovoc/c_35332 http://vocabularies.unesco.org/thesaurus/concept1882 |
| dc.subject.unesco.none.fl_str_mv |
Agua residual Waste water |
| dc.subject.agrovoc.none.fl_str_mv |
Fósforo Phosphorus Desarrollo sostenible Sustainable development |
| dc.subject.proposal.spa.fl_str_mv |
Recuperación de fósforo Cristalización de estruvita |
| dc.subject.agrovocuri.none.fl_str_mv |
http://aims.fao.org/aos/agrovoc/c_5804 http://aims.fao.org/aos/agrovoc/c_35332 |
| dc.subject.unescouri.none.fl_str_mv |
http://vocabularies.unesco.org/thesaurus/concept1882 |
| description |
ABSTRACT : The formation of struvite (MgNH4PO4·6H2O) for nutrient recovery in wastewater treatment plants has been widely investigated; however, little attention has been paid to the effect of stirring speeds on the resulting particle size, which could affect its agronomic value as a slow-release fertilizer. In this study, struvite formation from the centrate of sewage digestate was performed under six stirring speeds (0, 100, 200, 300, 400, 500 rpm). The resulting struvite crystals were characterised using X-ray diffraction and scanning electron microscopy with energy dispersive X-ray spectroscopy. The average particle size of struvite crystals increased from 55 µm at 0 rpm to 127 µm at 100 rpm and 128 µm at 200 rpm. Further increments in stirring speeds resulted in smaller crystal sizes. These results indicated that the largest particle size can be obtained at stirring speeds ranging from 100 to 200 rpm, equivalent to a velocity gradient between 79 and 188 s-1, as there was no statistically significant difference between mean values (t-test, p<0.05). The optimum stirring speed range reported herein can be used to set operational conditions for struvite crystallisation with the benefit of producing large crystals and reducing energy consumption in stirring tanks. |
| publishDate |
2019 |
| dc.date.issued.none.fl_str_mv |
2019 |
| dc.date.accessioned.none.fl_str_mv |
2021-12-10T20:40:50Z |
| dc.date.available.none.fl_str_mv |
2021-12-10T20:40:50Z |
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info:eu-repo/semantics/article |
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http://purl.org/coar/version/c_970fb48d4fbd8a85 |
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info:eu-repo/semantics/publishedVersion |
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http://purl.org/coar/resource_type/c_2df8fbb1 |
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https://purl.org/redcol/resource_type/ART |
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Artículo de investigación |
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http://purl.org/coar/resource_type/c_2df8fbb1 |
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publishedVersion |
| dc.identifier.citation.spa.fl_str_mv |
González Morales C., Camargo-Valero M. A., Molina Pérez F. J., and Fernández B., “Effect of the stirring speed on the struvite formation using the centrate from a WWTP”, Rev.Fac.Ing.Univ.Antioquia, no. 92, pp. 42-50, May 2019. |
| dc.identifier.issn.none.fl_str_mv |
0120-6230 |
| dc.identifier.uri.none.fl_str_mv |
http://hdl.handle.net/10495/24951 |
| dc.identifier.doi.none.fl_str_mv |
10.17533/10.17533/udea.redin.20190518 |
| dc.identifier.eissn.none.fl_str_mv |
2422-2844 |
| dc.identifier.url.spa.fl_str_mv |
https://revistas.udea.edu.co/index.php/ingenieria/article/view/337569 |
| identifier_str_mv |
González Morales C., Camargo-Valero M. A., Molina Pérez F. J., and Fernández B., “Effect of the stirring speed on the struvite formation using the centrate from a WWTP”, Rev.Fac.Ing.Univ.Antioquia, no. 92, pp. 42-50, May 2019. 0120-6230 10.17533/10.17533/udea.redin.20190518 2422-2844 |
| url |
http://hdl.handle.net/10495/24951 https://revistas.udea.edu.co/index.php/ingenieria/article/view/337569 |
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eng |
| language |
eng |
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Rev. Fac. Ing. Univ. Antioquia |
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info:eu-repo/semantics/openAccess |
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http://creativecommons.org/licenses/by-nc-sa/2.5/co/ |
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openAccess |
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http://creativecommons.org/licenses/by-nc-sa/2.5/co/ http://purl.org/coar/access_right/c_abf2 https://creativecommons.org/licenses/by-nc-sa/4.0/ |
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Universidad de Antioquia, Facultad de Ingeniería |
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Grupo de Investigación en Gestión y Modelación Ambiental (GAIA) |
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Medellín, Colombia |
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Universidad de Antioquia |
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González Morales, CarolinaCamargo Valero, Miller AlonsoMolina Pérez, Francisco JoséFernández, Belén2021-12-10T20:40:50Z2021-12-10T20:40:50Z2019González Morales C., Camargo-Valero M. A., Molina Pérez F. J., and Fernández B., “Effect of the stirring speed on the struvite formation using the centrate from a WWTP”, Rev.Fac.Ing.Univ.Antioquia, no. 92, pp. 42-50, May 2019.0120-6230http://hdl.handle.net/10495/2495110.17533/10.17533/udea.redin.201905182422-2844https://revistas.udea.edu.co/index.php/ingenieria/article/view/337569ABSTRACT : The formation of struvite (MgNH4PO4·6H2O) for nutrient recovery in wastewater treatment plants has been widely investigated; however, little attention has been paid to the effect of stirring speeds on the resulting particle size, which could affect its agronomic value as a slow-release fertilizer. In this study, struvite formation from the centrate of sewage digestate was performed under six stirring speeds (0, 100, 200, 300, 400, 500 rpm). The resulting struvite crystals were characterised using X-ray diffraction and scanning electron microscopy with energy dispersive X-ray spectroscopy. The average particle size of struvite crystals increased from 55 µm at 0 rpm to 127 µm at 100 rpm and 128 µm at 200 rpm. Further increments in stirring speeds resulted in smaller crystal sizes. These results indicated that the largest particle size can be obtained at stirring speeds ranging from 100 to 200 rpm, equivalent to a velocity gradient between 79 and 188 s-1, as there was no statistically significant difference between mean values (t-test, p<0.05). The optimum stirring speed range reported herein can be used to set operational conditions for struvite crystallisation with the benefit of producing large crystals and reducing energy consumption in stirring tanks.RESUMEN: La formación de estruvita (MgNH4PO4·6H2O) para la recuperación de nutrientes en plantas de tratamiento de aguas residuales ha sido ampliamente investigada; sin embargo, se ha prestado poca atención al efecto de las velocidades de agitación en el tamaño de partícula resultante, lo que podría afectar su valor agronómico como fertilizante de liberación lenta. En este estudio, la formación de estruvita del centrado se realizó a seis velocidades de agitación (0, 100, 200, 300, 400, 500 rpm). Los cristales de estruvita resultantes se caracterizaron mediante difracción de rayos X y microscopía electrónica de barrido con espectroscopia de rayos X con dispersión de energía. El tamaño de partícula promedio de los cristales de estruvita aumentó de 55 µm a 0 rpm a 127 µm a 100 rpm y 128 µm a 200 rpm. Incrementos adicionales en las velocidades de agitación resultaron en tamaños de cristales más pequeños. Estos resultados indicaron que el mayor tamaño de partícula se puede obtener a velocidades de agitación entre 100-200 rpm, equivalente a un gradiente de velocidad entre 79 y 188 s-1, ya que no hubo diferencias estadísticamente significativas entre los valores medios (prueba t, p < 0.05). El rango óptimo de velocidad de agitación descrito aquí se puede usar para establecer condiciones operativas para la cristalización de estruvita con el beneficio de producir cristales grandes y reducir el consumo de energía en tanques agitados.COL00098329application/pdfengUniversidad de Antioquia, Facultad de IngenieríaGrupo de Investigación en Gestión y Modelación Ambiental (GAIA)Medellín, Colombiainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_2df8fbb1https://purl.org/redcol/resource_type/ARTArtículo de investigaciónhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/2.5/co/http://purl.org/coar/access_right/c_abf2https://creativecommons.org/licenses/by-nc-sa/4.0/Effect of the stirring speed on the struvite formation using the centrate from a WWTPEfecto de la velocidad de agitación en la formación de estruvita usando el centrado de una PTARGradiente de velocidadVelocity gradientEstruvitaStruviteAgua residualWaste waterFósforoPhosphorusDesarrollo sostenibleSustainable developmentRecuperación de fósforoCristalización de estruvitahttp://aims.fao.org/aos/agrovoc/c_5804http://aims.fao.org/aos/agrovoc/c_35332http://vocabularies.unesco.org/thesaurus/concept1882Rev. Fac. Ing. Univ. AntioquiaRevista Facultad de Ingeniería Universidad de Antioquia425092ORIGINALGonzalezCarolina_2019_EffectStirringSpeed.pdfGonzalezCarolina_2019_EffectStirringSpeed.pdfArtículo de investigaciónapplication/pdf356384http://bibliotecadigital.udea.edu.co/bitstream/10495/24951/1/GonzalezCarolina_2019_EffectStirringSpeed.pdf7fd51f5bcec60d0286c7ed1af949920bMD51CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-81051http://bibliotecadigital.udea.edu.co/bitstream/10495/24951/2/license_rdfe2060682c9c70d4d30c83c51448f4eedMD52LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://bibliotecadigital.udea.edu.co/bitstream/10495/24951/3/license.txt8a4605be74aa9ea9d79846c1fba20a33MD5310495/24951oai:bibliotecadigital.udea.edu.co:10495/249512021-12-10 15:40:50.699Repositorio Institucional Universidad de Antioquiaandres.perez@udea.edu.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 |