The mechanisms of struvite biomineralization in municipal wastewater

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dc.contributor.authorLeng, Yirong
dc.contributor.authorSoares, Ana
dc.date.accessioned2021-08-13T10:07:15Z
dc.date.available2021-08-13T10:07:15Z
dc.date.issued2021-07-24
dc.description.abstractThe mechanisms of struvite production by biomineralization were investigated for five microorganisms (Bacillus pumilus, Brevibacterium antiquum, Myxococcus xanthus, Halobacterium salinarum and Idiomarina loihiensis) in municipal wastewater. The microbial exponential phase of growth occurred within the first 48 h of incubation, with growth rates varying from 0.02–0.08 1/h. These five microorganisms removed 23–27 mg/L (66–79%) of ortho-phosphate from wastewater, which was recovered as biological struvite (i.e., bio-struvite) identified by morphological, X-ray diffraction and elemental analysis. Bio-struvite crystals occurred in a low extracellular supersaturation index (0.6–0.8 units). Bio-struvite formation in B. pumilus M. xanthus, H. salinarum cultures was linked to biologically induced mineralization. Whereas B. antiquum and I. loihiensis produced bio-struvite through biologically controlled mineralization mechanism because the crystals presented homogeneity in morphology and size, and intracellular vesicle-like cell structures were observed enclosing electron-dense granules/materials. Nutrient recovery through biomineralization has potential application in wastewater streams promoting circularity within the wastewater industry.en_UK
dc.identifier.citationLeng Y, Soares A. (2021) The mechanisms of struvite biomineralization in municipal wastewater. Science of the Total Environment, Volume 799, December 2021, Article number 149261en_UK
dc.identifier.issn0048-9697
dc.identifier.uri10.1016/j.scitotenv.2021.149261
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/16993
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectMunicipal wastewateren_UK
dc.subjectIntracellular clusteren_UK
dc.subjectPhosphorus recoveryen_UK
dc.subjectStruviteen_UK
dc.subjectBiomineralizationen_UK
dc.titleThe mechanisms of struvite biomineralization in municipal wastewateren_UK
dc.typeArticleen_UK

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