Biological recovery of phosphorus from waste activated sludge via alkaline fermentation and struvite biomineralization by Brevibacterium antiquum

Coşgun, Sevil; Kara, Büşra; Kunt, Büşra; Hür, Ceren; Semerci, Neslihan (2022). Biological recovery of phosphorus from waste activated sludge via alkaline fermentation and struvite biomineralization by Brevibacterium antiquum. Biodegradation, 33(2), pp. 195-206. Springer Nature 10.1007/s10532-022-09975-0

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Struvite biomineralization is a promising method for phosphorus recovery from wastewater treatment plant streams, and the growth of responsible microorganisms in mixed cultures is one of the most critical points for applying this process in pilot and full-scale. This study aimed to investigate the growth and bio-struvite production of Brevibacterium antiquum in mixed sludge culture. Alkaline fermentation was applied at different pH conditions to enhance the phosphorus content of sludge for an efficient recovery, and pH 8 was determined as the most feasible considering the phosphorus release and sludge characteristics. Growth optimization studies showed that NaCl's presence decreases the growth rate of Brevibacterium antiquum and bio-struvite production. At the same time, pH in the range of 6.8–8.2 did not alter the growth significantly. In addition, studies showed the ability of Brevibacterium antiquum in unsterilized fermented sludge centrate to grow and recover the phosphorus as struvite. Thus, our results indicated the potential of struvite biomineralization in full-scale wastewater treatment plants.

Item Type:

Journal Article (Original Article)

Division/Institute:

10 Strategic Research Centers > Oeschger Centre for Climate Change Research (OCCR)
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Palaeoecology
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)

UniBE Contributor:

Coşgun, Sevil

Subjects:

500 Science > 580 Plants (Botany)

ISSN:

0923-9820

Publisher:

Springer Nature

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

02 Mar 2022 15:43

Last Modified:

27 Apr 2022 08:14

Publisher DOI:

10.1007/s10532-022-09975-0

PubMed ID:

35142960

Uncontrolled Keywords:

Biomineralization; Brevibacterium antiquum; Struvite; Phosphorus recovery; Alkaline fermentation

BORIS DOI:

10.48350/165439

URI:

https://boris.unibe.ch/id/eprint/165439

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