Recovery of phosphorus as soluble phosphates from aqueous solutions using chitosan hydrogel sorbents.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
18 08 2021
18 08 2021
Historique:
received:
22
03
2021
accepted:
10
08
2021
entrez:
19
8
2021
pubmed:
20
8
2021
medline:
20
8
2021
Statut:
epublish
Résumé
This manuscript presents new method of phosphorus recovery from aqueous solutions in a convenient form of readily-soluble phosphates using chitosan hydrogels. Non-modified chitosan hydrogel granules (CHs) and chitosan hydrogel granules crosslinked with epichlorohydrin (CHs-ECH) served as orthophosphate ion carriers. The developed method was based on cyclic sorption/desorption of orthophosphates, with desorption performed in each cycle to the same solution (the concentrate). The concentrations of orthophosphates obtained in the concentrates depended on, i.a., sorbent type, sorption pH, source solution concentration, and desorption pH. Phosphorus concentrations in the concentrates were even 30 times higher than these in the source solutions. The maximum concentrate concentrations reached 332.0 mg P-PO
Identifiants
pubmed: 34408258
doi: 10.1038/s41598-021-96416-2
pii: 10.1038/s41598-021-96416-2
pmc: PMC8373865
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
16766Informations de copyright
© 2021. The Author(s).
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