Understanding the growth of the bio-struvite production Brevibacterium antiquum in sludge liquors

Simple item page
dc.contributor.authorSimoes, Francisco
dc.contributor.authorVale, Peter
dc.contributor.authorStephenson, Tom
dc.contributor.authorSoares, Ana
dc.date.accessioned2018-01-17T10:40:17Z
dc.date.available2018-01-17T10:40:17Z
dc.date.issued2017-12-21
dc.description.abstractBiological struvite (bio-struvite) production through biomineralization has been suggested as an alternative to chemically derived struvite production to recover phosphorus from wastewater streams. In this study, statistical experimental design techniques were used to find the optimal growth rate (μ) of Brevibacterium antiquum in sludge liquors. Acetate, oleic acid, NaCl, NH4-N, and Ca2+ were shown to affect the growth rate of B. antiquum. The growth rate reached 3.44 1/d when the bacteria were supplemented with 3.0% w/v NaCl and 1124 mg chemical oxygen demand/L as acetate. However, NaCl was found to hinder the biomineralization of bio-struvite. A two-stage experiment demonstrated that bio-struvite was produced in the presence of acetate. Bio-struvite production was confirmed with X-ray spectroscopy and crystal morphology (prismatic, tabular, and twinned crystal habit) through electron microscope analysis. The bio-struvite production was estimated by measuring phosphate content of the recovered precipitates, reaching 9.6 mg P/L as bio-struvite. Overall, these results demonstrated the optimal conditions required to achieve high growth rates as well as bio-struvite production with B. antiquum. The results obtained in this study could be used to develop a process to grow B. antiquum in wastewater streams in mixed cultures and recover phosphorus-rich products such as struvite.en_UK
dc.identifier.citationSimoes F, Vale P, Stephenson T, Soares A.(2018) Understanding the growth of the bio-struvite production Brevibacterium antiquum in sludge liquors. Environmental Technology, Volume 39, Issue 17, 2018, pp. 2278-2287en_UK
dc.identifier.issn0959-3330
dc.identifier.urihttp://dx.doi.org/10.1080/09593330.2017.1411399
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/12899
dc.language.isoenen_UK
dc.publisherTaylor & Francisen_UK
dc.rightsAttribution-NonCommercial 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/*
dc.subjectBiomineralizationen_UK
dc.subjectCentrateen_UK
dc.subjectPhosphorus recoveryen_UK
dc.subjectWastewateren_UK
dc.subjectMixed-cultureen_UK
dc.titleUnderstanding the growth of the bio-struvite production Brevibacterium antiquum in sludge liquorsen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Understanding_the_growth_of_the_bio-struvite_production-2017.pdf
Size:
834.22 KB
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)