Cargando…

Predicting the potential of sludge dewatering liquors to recover nutrients as struvite biominerals

Phosphorus and nutrient recovery from wastewater as mineral salts can support local replenishment of fertilisers and reduce mining, contributing to the circular economy. Wastewater and related streams are rich in nutrients, however; there is need to develop bio-based processes to recover them. This...

Descripción completa

Detalles Bibliográficos
Autores principales: Simoes, Francisco, Colston, Robert, Rosa-Fernandes, Catarina, Vale, Peter, Stephenson, Tom, Soares, Ana
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9488103/
https://www.ncbi.nlm.nih.gov/pubmed/36159601
http://dx.doi.org/10.1016/j.ese.2020.100052
_version_ 1784792587121459200
author Simoes, Francisco
Colston, Robert
Rosa-Fernandes, Catarina
Vale, Peter
Stephenson, Tom
Soares, Ana
author_facet Simoes, Francisco
Colston, Robert
Rosa-Fernandes, Catarina
Vale, Peter
Stephenson, Tom
Soares, Ana
author_sort Simoes, Francisco
collection PubMed
description Phosphorus and nutrient recovery from wastewater as mineral salts can support local replenishment of fertilisers and reduce mining, contributing to the circular economy. Wastewater and related streams are rich in nutrients, however; there is need to develop bio-based processes to recover them. This study investigates the fractions of phosphorus (P) used by Brevibacterium antiquum to form struvite biominerals (bio-struvite) in wastewater sludge dewatering liquors. After 72h of incubation, 25.6 mg P/L were recovered as bio-struvite from 12.4 mg P/L organic plus condensed P and 13.2 mg P/L of ortho-phosphate. The potential of sludge dewatering liquors to recover nutrients as struvite was investigated by characterising ten types of sludge liquors (originating from primary, secondary sludge, feed to anaerobic digester and digestate, from 3 types of wastewater treatment plants) for their P fractions together with other parameters relevant for B. antiquum growth. Results indicated that liquors obtained from primary sludge, feed to anaerobic digesters and digestate were the most suitable to produce bio-struvite, as these were found to frequently have a high content of organic and condensed P, between to 276–732 mg P/L. Liquors, from all the investigated sites, presented a higher potential for bio-struvite production than with conventional struvite precipitation. This study demonstrated that B. antiquum could convert organic and condensed P into bio-struvite, and this opens up a completely new way to recover forms of phosphorus that are not typically available for nutrient recovery in a single process.
format Online
Article
Text
id pubmed-9488103
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Elsevier
record_format MEDLINE/PubMed
spelling pubmed-94881032022-09-23 Predicting the potential of sludge dewatering liquors to recover nutrients as struvite biominerals Simoes, Francisco Colston, Robert Rosa-Fernandes, Catarina Vale, Peter Stephenson, Tom Soares, Ana Environ Sci Ecotechnol Original Research Phosphorus and nutrient recovery from wastewater as mineral salts can support local replenishment of fertilisers and reduce mining, contributing to the circular economy. Wastewater and related streams are rich in nutrients, however; there is need to develop bio-based processes to recover them. This study investigates the fractions of phosphorus (P) used by Brevibacterium antiquum to form struvite biominerals (bio-struvite) in wastewater sludge dewatering liquors. After 72h of incubation, 25.6 mg P/L were recovered as bio-struvite from 12.4 mg P/L organic plus condensed P and 13.2 mg P/L of ortho-phosphate. The potential of sludge dewatering liquors to recover nutrients as struvite was investigated by characterising ten types of sludge liquors (originating from primary, secondary sludge, feed to anaerobic digester and digestate, from 3 types of wastewater treatment plants) for their P fractions together with other parameters relevant for B. antiquum growth. Results indicated that liquors obtained from primary sludge, feed to anaerobic digesters and digestate were the most suitable to produce bio-struvite, as these were found to frequently have a high content of organic and condensed P, between to 276–732 mg P/L. Liquors, from all the investigated sites, presented a higher potential for bio-struvite production than with conventional struvite precipitation. This study demonstrated that B. antiquum could convert organic and condensed P into bio-struvite, and this opens up a completely new way to recover forms of phosphorus that are not typically available for nutrient recovery in a single process. Elsevier 2020-06-27 /pmc/articles/PMC9488103/ /pubmed/36159601 http://dx.doi.org/10.1016/j.ese.2020.100052 Text en © 2020 The Author(s) https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Original Research
Simoes, Francisco
Colston, Robert
Rosa-Fernandes, Catarina
Vale, Peter
Stephenson, Tom
Soares, Ana
Predicting the potential of sludge dewatering liquors to recover nutrients as struvite biominerals
title Predicting the potential of sludge dewatering liquors to recover nutrients as struvite biominerals
title_full Predicting the potential of sludge dewatering liquors to recover nutrients as struvite biominerals
title_fullStr Predicting the potential of sludge dewatering liquors to recover nutrients as struvite biominerals
title_full_unstemmed Predicting the potential of sludge dewatering liquors to recover nutrients as struvite biominerals
title_short Predicting the potential of sludge dewatering liquors to recover nutrients as struvite biominerals
title_sort predicting the potential of sludge dewatering liquors to recover nutrients as struvite biominerals
topic Original Research
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9488103/
https://www.ncbi.nlm.nih.gov/pubmed/36159601
http://dx.doi.org/10.1016/j.ese.2020.100052
work_keys_str_mv AT simoesfrancisco predictingthepotentialofsludgedewateringliquorstorecovernutrientsasstruvitebiominerals
AT colstonrobert predictingthepotentialofsludgedewateringliquorstorecovernutrientsasstruvitebiominerals
AT rosafernandescatarina predictingthepotentialofsludgedewateringliquorstorecovernutrientsasstruvitebiominerals
AT valepeter predictingthepotentialofsludgedewateringliquorstorecovernutrientsasstruvitebiominerals
AT stephensontom predictingthepotentialofsludgedewateringliquorstorecovernutrientsasstruvitebiominerals
AT soaresana predictingthepotentialofsludgedewateringliquorstorecovernutrientsasstruvitebiominerals