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https://hdl.handle.net/1822/41596
Título: | A design of experiments to assess phosphorous removal and crystal properties in struvite precipitation of source separated urine using different Mg sources |
Autor(es): | Barbosa, S. G. Peixoto, L. Meulman, Brendo Alves, M. M. Pereira, M. A. |
Palavras-chave: | Human Urine Phosphorus recovery Magnesium sources Stirring speed Struvite crystal size |
Data: | 15-Ago-2016 |
Editora: | Elsevier B.V. |
Revista: | Chemical Engineering Journal |
Citação: | Barbosa, S. G.; Peixoto, L.; Meulman, Brendo; Alves, M. Madalena; Pereira, M. A., A design of experiments to assess phosphorous removal and crystal properties in struvite precipitation of source separated urine using different Mg sources. Chemical Engineering Journal, 298, 146-153, 2016 |
Resumo(s): | Phosphorus recycling and recovery has received special attention due to its non-replaceable and non-renewability. Phosphorus recovery from human urine in the form of struvite crystals is a potential alternative source. In this work, the efficiency of struvite precipitation from source separated human urine and struvite crystals size were analyzed using three different Mg2+ sources (MgCl2, Mg(OH)2 and MgO), individually evaluated using a statistical design of experiments to assess the combined effect of Mg2+:P molar ratio (1:1, 1.5:1 and 2:1) and stirring speed (30, 45 and 60 rpm). Formation of struvite crystals was confirmed by X-ray Diffraction (XRD) and scanning electron microscopy (SEM) with an energy dispersive spectrometer (EDS). Using the optimal conditions determined, MgO as Mg2+ source at 2:1 molar ratio and a stirring speed of 30 rpm, 99% of P was recovered as struvite crystals with a size of 50 to 100 m. |
Tipo: | Artigo |
Descrição: | Supplementary data associated with this article can be found, in the online version, at: http://dx.doi.org/10.1016/j.cej.2016.03.148. |
URI: | https://hdl.handle.net/1822/41596 |
DOI: | 10.1016/j.cej.2016.03.148 |
ISSN: | 1385-8947 |
e-ISSN: | 1385-8947 |
Versão da editora: | http://www.elsevier.com/locate/issn/13858947 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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document_37925_1.pdf | 1,46 MB | Adobe PDF | Ver/Abrir |