<?xml version="1.0" encoding="UTF-8"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-10-30T01:48:49Z</responseDate><request verb="GetRecord" identifier="oai:bayburt-rdlopen.rawdatalibrary.net:bayburt/11986" metadataPrefix="oai_dc">https://bayburt-rdlopen.rawdatalibrary.net/oai/request</request><GetRecord><record><header><identifier>oai:bayburt-rdlopen.rawdatalibrary.net:bayburt/11986</identifier><datestamp>2026-10-29T19:42:06Z</datestamp><setSpec>openaire</setSpec><setSpec>com_bayburt_10000</setSpec><setSpec>col_bayburt_10001</setSpec><setSpec>com_bayburt_10007</setSpec><setSpec>col_bayburt_10227</setSpec></header><metadata><oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><dc:title>Investigation of Manganese Ion Removal from Waters Using Sewage Sludge Ash</dc:title><dc:creator>Şahset, İrdemez</dc:creator><dc:creator>Duygu, Yeşılyurt</dc:creator><dc:creator>Torun, Ekmekyapar</dc:creator><dc:creator>Fatma</dc:creator><dc:creator>Sinan, Kul</dc:creator><dc:creator>Züleyha, Bıngül</dc:creator><dc:subject>Adsorbent</dc:subject><dc:subject>Adsorption</dc:subject><dc:subject>Isotherm</dc:subject><dc:subject>Manganese removal</dc:subject><dc:subject>Sewage sludge ash</dc:subject><dc:description>In this study, the removal of Mn2+ ions from waters by the adsorption method using ash obtained from a treatment plant sludge burning unit, which is treatment plant waste and mostly disposed of in a landfill, was investigated. By determining the most suitable conditions for adsorption, adsorption kinetics, isotherms, and thermodynamic values were determined. In the experiments, 63.9% removal efficiency was achieved using 10 g/L adsorbent concentration for 10 mg/L Mn+2 under optimum conditions. As a result of the research, it was determined that the adsorption proceeds according to the pseudo-second-degree reaction and abides by the Langmuir isotherm. The thermodynamic constants of ΔH°=-4.866 kJ/mol and ΔS°= 21.44 J/mol were determined. As a result of this, the reaction was exothermic, spontaneous, and random, and adsorption was physical adsorption. As a result of the study, sewage sludge ash can be used in the treatment of water containing low concentrations of Mn2+.</dc:description><dc:publisher>Iranian Institute of Research and Development in Chemical Industries</dc:publisher><dc:date>2022</dc:date><dc:type>Article</dc:type><dc:identifier>https://rdlopen.rawdatalibrary.net/r/bayburt/11986</dc:identifier><dc:identifier>https://doi.org/10.30492/ijcce.2021.527060.4639</dc:identifier><dc:identifier>1021-9986</dc:identifier><dc:language>en</dc:language><dc:relation>Iranian Journal of Chemistry and Chemical Engineering</dc:relation><dc:rights>info:eu-repo/semantics/closedAccess</dc:rights><dc:type>info:eu-repo/semantics/article</dc:type><dc:identifier>https://bayburt-rdlopen.rawdatalibrary.net/tr/items/bayburt/11986</dc:identifier></oai_dc:dc></metadata></record></GetRecord></OAI-PMH>