Publication:
Phosphorus recovery from sewage sludge ash with bioleaching and electrodialysis

Simple item page
dc.contributor.authorÇALLI, BARIŞ
dc.contributor.authorsSemerci, Neslihan; Kunt, Busra; Calli, Baris
dc.date.accessioned2022-03-12T22:29:13Z
dc.date.available2022-03-12T22:29:13Z
dc.date.issued2019
dc.description.abstractPhosphorus is an essential element for all living organisms and for plants. However, phosphate rock, which is the main source of phosphorus, is limited and thus it must be recovered from secondary sources like sewage sludge ash (SSA). SSA is one of the most promising secondary sources because it contains considerable amounts of phosphorus. The drawback of SSA as a secondary source is the presence of heavy metals along with phosphorus. In this study, a bioleaching process was applied to solubilize the phosphorus more economically, thus bioleaching bacteria was used to obtain acidic conditions for phosphorus leaching. For this purpose, batch bioleaching experiments were carried out with Sulfur oxidizing bacteria (SOB) to optimize the process in terms of phosphorus dissolution. Experiments were conducted with different amounts of ash, inoculum volumes, and sulfur concentrations. Because the application of the bioleaching process leads to solubilization of heavy metals beside phosphorus, an electrodialysis process was used to separate phosphorus from heavy metals. Electrodialysis experiments were performed in a 3 compartment electrodialysis reactor with gold coated copper electrodes. The maximum phosphorus bioleaching was obtained with 2 g of ash, 40% inoculum, and 10 g.l(-1) elemental sulfur. Electrodialysis studies with gold coated copper electrodes lasted for 14 days and 24.6% of the phosphorus was transported to the anode.
dc.identifier.doi10.1016/j.ibiod.2019.104739
dc.identifier.eissn1879-0208
dc.identifier.issn0964-8305
dc.identifier.urihttps://hdl.handle.net/11424/235362
dc.identifier.wosWOS:000491619000013
dc.language.isoeng
dc.publisherELSEVIER SCI LTD
dc.relation.ispartofINTERNATIONAL BIODETERIORATION & BIODEGRADATION
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectSewage sludge ash
dc.subjectPhosphorus recovery
dc.subjectBioleaching
dc.subjectSulfur oxidizing bacteria
dc.subjectElectrodialysis
dc.subjectHEAVY-METALS
dc.subjectROCK PHOSPHATE
dc.subjectOXIDATION
dc.subjectSULFUR
dc.subjectSEPARATION
dc.subjectEXTRACTION
dc.subjectSTRUVITE
dc.subjectWATER
dc.subjectIRON
dc.subjectACID
dc.titlePhosphorus recovery from sewage sludge ash with bioleaching and electrodialysis
dc.typearticle
dspace.entity.typePublication
local.avesis.ide9eb9b92-2165-43a7-98f2-a4a458865827
local.import.packageSS17
local.indexed.atWOS
local.indexed.atSCOPUS
local.journal.articlenumber104739
local.journal.numberofpages10
local.journal.quartileQ1
oaire.citation.titleINTERNATIONAL BIODETERIORATION & BIODEGRADATION
oaire.citation.volume144
relation.isAuthorOfPublication2e20fe96-469a-44e0-88b2-e56450a93cf6
relation.isAuthorOfPublication.latestForDiscovery2e20fe96-469a-44e0-88b2-e56450a93cf6

Files

Collections

Research Outputs