Understanding the biochemical characteristics of struvite bio-mineralising microorganisms and their future in nutrient recovery

Simple item page
dc.contributor.authorLeng, Yirong
dc.contributor.authorColston, Robert
dc.contributor.authorSoares, Ana
dc.date.accessioned2020-01-17T11:55:46Z
dc.date.available2020-01-17T11:55:46Z
dc.date.issued2020-01-08
dc.description.abstractThe biochemical properties of selected microorganisms (Bacillus pumilus, Brevibacterium antiquum, Myxococcus xanthus, Halobacterium salinarum and Idiomarina loihiensis), known for their ability to produce struvite through biomineralisation, were investigated. All five microorganisms grew at mesophilic temperature ranges (22–34 °C), produced urease (except I. loihiensis) and used bovine serum albumin as a carbon source. I. loihiensis was characterised as a facultative anaerobe able to use O2 and NO3 as an electron acceptor. A growth rate of 0.15 1/h was estimated for I. loihiensis at pH 8.0 and NaCl 3.5% w/v. The growth rates for the other microorganisms tested were 0.14–0.43 1/h at pH 7–7.3 and NaCl ≤1% w/v. All the microorganisms produced struvite, as identified by morphological and X-ray Powder Diffraction (XRD) analysis, under aerobic conditions. The biological struvite yield was between 1.5 and 1.7 g/L of media, the ortho-phosphate removal and recovery were 55–76% and 46–54%, respectively, the Mg2+ removal and recovery was 92–98% and 83–95%, respectively. Large crystals (>300 μm) were observed, with coffin-lid and long-bar shapes being the dominant morphology of biological struvite crystals. The characterisation of the biochemical properties of the studied microorganisms is critical for reactor and process design, as well as operational conditions, to promote phosphorus recovery from waste streams.en_UK
dc.identifier.citationLeng Y, Colston R, Soares A. (2020) Understanding the biochemical characteristics of struvite bio-mineralising microorganisms and their future in nutrient recovery. Chemosphere, Volume 247, May 2020, Article number 125799en_UK
dc.identifier.cris25839161
dc.identifier.issn0045-6535
dc.identifier.urihttps://doi.org/10.1016/j.chemosphere.2019.125799
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/14941
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.subjectBiomineral formationen_UK
dc.subjectStruviteen_UK
dc.subjectBiochemical propertiesen_UK
dc.subjectPhosphorus recoveryen_UK
dc.subjectStatistical designen_UK
dc.titleUnderstanding the biochemical characteristics of struvite bio-mineralising microorganisms and their future in nutrient recoveryen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Understanding_the_biochemical_characteristics_of_struvite_bio-mineralising-2020.pdf
Size:
2.18 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SWEE)