Phosphate recovery from digestate using magnesium-modified fungal biochar

dc.contributor.authorSurmeli, Recep Onder
dc.contributor.authorMadenli, Ozgecan
dc.contributor.authorBayrakdar, Alper
dc.contributor.authorDeveci, Ece Ummu
dc.contributor.authorCalli, Baris
dc.date.accessioned2024-11-07T13:34:27Z
dc.date.available2024-11-07T13:34:27Z
dc.date.issued2024
dc.departmentNiğde Ömer Halisdemir Üniversitesi
dc.description.abstractMg-rich biochars have been used for the removal and recovery of phosphate (PO43-) and ammonium (NH4+) from waste streams. In this study, a novel magnesium-modified biochar (Mg-FBC) was synthesized by immobilizing waste magnesite dust (WMD) into Aspergillus niger fungal biomass for the adsorption of PO(4)(3- )and NH4+. Pyrolysis at various temperatures and analysis using techniques such as SEM-EDS, TGA, XRD, FTIR, and BET revealed that biochar produced at 650 degrees C (Mg-FBC650) exhibited enhanced surface properties favorable for effective adsorption. This improvement is attributed to the increased surface area facilitated by the hyphal structure of A. Niger and the effective dispersion of MgO on its surface. In experiments using a synthetic phosphate solution, the adsorption capacity reached 595 mg PO43-/g BC, fitting the Langmuir model at pH 9. In addition, experiments with the liquid fraction of a real digestate (LFD) showed adsorption capacities of 502 mg PO43-/g BC and 150 mg NH4+/g BC, respectively. The adsorption mechanism was elucidated through SEM-EDS, XRD, and FTIR analyses confirming that Mg-FBC650 facilitates a multifaceted adsorption mechanism, including adsorption, electrostatic attraction, chemical precipitation, and surface complexation. Consequently, PO43- was the primary adsorbate in the synthetic solution, while both PO43- and NH4+ were effectively removed from the LFD, indicating that Mg-FBC650 has substantial potential as an efficient adsorbent for nutrient removal. As a result, Mg-FBC650 is believed to hold significant potential as a slow-release and readily transferable bio-fertilizer, particularly suitable for application in soils deficient in organic matter, nitrogen, and phosphorus. [GRAPHICS] .
dc.description.sponsorshipMarmara University Scientific Research Project Coordination Unit (BAPKO) [FEN-C-DRP-130319-0062]
dc.description.sponsorshipThe authors would like to thank Marmara University Scientific Research Project Coordination Unit (BAPKO) for the financial support. Project: FEN-C-DRP-130319-0062.
dc.identifier.doi10.1007/s10098-024-03035-2
dc.identifier.issn1618-954X
dc.identifier.issn1618-9558
dc.identifier.scopus2-s2.0-85207228750
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1007/s10098-024-03035-2
dc.identifier.urihttps://hdl.handle.net/11480/15974
dc.identifier.wosWOS:001340529500001
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherSpringer
dc.relation.ispartofClean Technologies and Environmental Policy
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241106
dc.subjectAmmonium
dc.subjectAspergillus niger
dc.subjectBiochar
dc.subjectDigestate
dc.subjectFungus
dc.subjectMagnesium
dc.subjectPhosphate
dc.titlePhosphate recovery from digestate using magnesium-modified fungal biochar
dc.typeArticle

Dosyalar