Impact of various physico-chemical parameters on spontaneous nucleation of struvite (MgNH4PO4.6H2O) formation in a wastewater treatment plant: kinetic and nucleation mechanism
In this study, the effect of various physico-chemical parameters such as supersaturation, temperature and pH, and the presence of foreign ion on the nucleation of struvite formation in a wastewater treatment plant were studied experimentally. Mechanism of nucleation kinetics of struvite (MgNH4PO4.6H...
| Main Authors: | , , |
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| Format: | Journal Article |
| Published: |
Taylor & Francis Ltd.
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/5999 |
| _version_ | 1848744952278810624 |
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| author | Ariyanto, E. Ang, Ha Ming Sen, Tushar Kanti Sen |
| author_facet | Ariyanto, E. Ang, Ha Ming Sen, Tushar Kanti Sen |
| author_sort | Ariyanto, E. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this study, the effect of various physico-chemical parameters such as supersaturation, temperature and pH, and the presence of foreign ion on the nucleation of struvite formation in a wastewater treatment plant were studied experimentally. Mechanism of nucleation kinetics of struvite (MgNH4PO4.6H2O) formation has been identified by thermodynamic parameters study. The time taken for nucleation to occur (often indicated by the induction time) is a measure of struvite nucleation. It was found that induction time decreased with an increase in supersaturation, temperature and pH but increased with the presence of excess chloride (Cl-) ion. Interfacial energy of two nucleation mechanisms (gamma s, hom and gamma s, het), homogeneous and heterogeneous, increased with an increase in solution pH for all temperatures whereas interfacial energy of crystals increased with decrease in temperature. Thermodynamic parameters such as activation energy and interfacial energy were calculated based on rate of nucleation for both homogeneous and heterogeneous crystallisation. Finally, inhabitation of struvite nucleation by presence of foreign ion has been reported here. |
| first_indexed | 2025-11-14T06:09:38Z |
| format | Journal Article |
| id | curtin-20.500.11937-5999 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T06:09:38Z |
| publishDate | 2013 |
| publisher | Taylor & Francis Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-59992019-02-19T04:27:11Z Impact of various physico-chemical parameters on spontaneous nucleation of struvite (MgNH4PO4.6H2O) formation in a wastewater treatment plant: kinetic and nucleation mechanism Ariyanto, E. Ang, Ha Ming Sen, Tushar Kanti Sen Induction time Struvite Heterogeneous nucleation Homogeneous nucleation Wastewater treatment plan Saturation index In this study, the effect of various physico-chemical parameters such as supersaturation, temperature and pH, and the presence of foreign ion on the nucleation of struvite formation in a wastewater treatment plant were studied experimentally. Mechanism of nucleation kinetics of struvite (MgNH4PO4.6H2O) formation has been identified by thermodynamic parameters study. The time taken for nucleation to occur (often indicated by the induction time) is a measure of struvite nucleation. It was found that induction time decreased with an increase in supersaturation, temperature and pH but increased with the presence of excess chloride (Cl-) ion. Interfacial energy of two nucleation mechanisms (gamma s, hom and gamma s, het), homogeneous and heterogeneous, increased with an increase in solution pH for all temperatures whereas interfacial energy of crystals increased with decrease in temperature. Thermodynamic parameters such as activation energy and interfacial energy were calculated based on rate of nucleation for both homogeneous and heterogeneous crystallisation. Finally, inhabitation of struvite nucleation by presence of foreign ion has been reported here. 2013 Journal Article http://hdl.handle.net/20.500.11937/5999 10.1080/19443994.2013.821042 Taylor & Francis Ltd. restricted |
| spellingShingle | Induction time Struvite Heterogeneous nucleation Homogeneous nucleation Wastewater treatment plan Saturation index Ariyanto, E. Ang, Ha Ming Sen, Tushar Kanti Sen Impact of various physico-chemical parameters on spontaneous nucleation of struvite (MgNH4PO4.6H2O) formation in a wastewater treatment plant: kinetic and nucleation mechanism |
| title | Impact of various physico-chemical parameters on spontaneous nucleation of struvite (MgNH4PO4.6H2O) formation in a wastewater treatment plant: kinetic and nucleation mechanism |
| title_full | Impact of various physico-chemical parameters on spontaneous nucleation of struvite (MgNH4PO4.6H2O) formation in a wastewater treatment plant: kinetic and nucleation mechanism |
| title_fullStr | Impact of various physico-chemical parameters on spontaneous nucleation of struvite (MgNH4PO4.6H2O) formation in a wastewater treatment plant: kinetic and nucleation mechanism |
| title_full_unstemmed | Impact of various physico-chemical parameters on spontaneous nucleation of struvite (MgNH4PO4.6H2O) formation in a wastewater treatment plant: kinetic and nucleation mechanism |
| title_short | Impact of various physico-chemical parameters on spontaneous nucleation of struvite (MgNH4PO4.6H2O) formation in a wastewater treatment plant: kinetic and nucleation mechanism |
| title_sort | impact of various physico-chemical parameters on spontaneous nucleation of struvite (mgnh4po4.6h2o) formation in a wastewater treatment plant: kinetic and nucleation mechanism |
| topic | Induction time Struvite Heterogeneous nucleation Homogeneous nucleation Wastewater treatment plan Saturation index |
| url | http://hdl.handle.net/20.500.11937/5999 |