Sewage sludge management for phosphorus recovery as struvite in EBPR wastewater treatment plants
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Sewage sludge management for phosphorus recovery as struvite in EBPR wastewater treatment plants

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Sewage sludge management for phosphorus recovery as struvite in EBPR wastewater treatment plants

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dc.contributor.author Pastor, Laura
dc.contributor.author Martí Ortega, Nuria
dc.contributor.author Bouzas Blanco, Alberto
dc.contributor.author Seco Torrecillas, Aurora
dc.date.accessioned 2019-11-11T14:22:50Z
dc.date.available 2019-11-11T14:22:50Z
dc.date.issued 2008
dc.identifier.uri https://hdl.handle.net/10550/72164
dc.description.abstract The influence of separate and mixed thickening of primary and secondary sludge on struvite recovery was studied. Phosphorus precipitation in the digester was reduced from 13.7 g of phosphorus per kg of treated sludge in the separate thickening experiment to 5.9 in the mixed thickening experiment. This lessening of the uncontrolled precipitation means a reduction of the operational problems and enhances the phosphorus availability for its later crystallization. High phosphorus precipitation and recovery efficiencies were achieved in both crystallization experiments. However, mixed thickening configuration showed a lower percentage of phosphorus precipitated as struvite due to the presence of high calcium concentrations. In spite of this low percentage, the global phosphorus mass balance showed that mixed thickening experiment produces a higher phosphorus recovery as struvite per kg of treated sludge (i.e., 3.6 gP/kg sludge vs. 2.5 gP/kg sludge in separate thickening).
dc.language.iso eng
dc.relation.ispartof Bioresource Technology, 2008, vol. 99, num. 11, p. 4817-4824
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Pastor, Laura Martí Ortega, Nuria Bouzas Blanco, Alberto Seco Torrecillas, Aurora 2008 Sewage sludge management for phosphorus recovery as struvite in EBPR wastewater treatment plants Bioresource Technology 99 11 4817 4824
dc.subject Aigües residuals Plantes de tractament
dc.title Sewage sludge management for phosphorus recovery as struvite in EBPR wastewater treatment plants
dc.type info:eu-repo/semantics/article
dc.date.updated 2019-11-11T14:22:52Z
dc.identifier.doi https://doi.org/10.1016/j.biortech.2007.09.054
dc.identifier.idgrec 039410

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