Ecological risk assessment of domestic sewage sludge: a case study

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dc.authorid0000-0003-4176-1976en_US
dc.authorid0000-0002-6321-0350en_US
dc.contributor.authorYakamercan, Elif
dc.contributor.authorAygün, Ahmet
dc.date.accessioned2022-08-04T12:05:58Z
dc.date.available2022-08-04T12:05:58Z
dc.date.issued2021en_US
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Çevre Mühendisliği Bölümüen_US
dc.description.abstractThis study aims to evaluate potential ecological risks and heavy metal pollution in sewage sludge. For these purposes, domestic sewage sludge samples were collected for a period of one year from a wastewater treatment plant in Bursa, Turkey and analyzed for heavy metals. The average heavy metal content of the sewage sludge was wherein decreasing order of Zn>Cu>Ni>Cr>Pb>As>Se>Cd. As a whole, the concentration of heavy metals was below the limit values indicated within the agricultural land application legal standards. Correlation analysis showed a very strong correlation observed between Ni and Cr. Determining to pollution degree and potential ecological risks, some indices such as Enrichment factor (EF), Single-factor pollution index (PI), Geoaccumulation index (Igeo), Nemerow synthetic pollution index (PN), Contamination factor (Cf), Integrated pollution degree (Cd), Pollution Load Index (PLI), Monominal potential ecological risk (ER), Potential ecological risk index (RI), and the Probability of toxicity (mERM-Q) were used in this study. Based on the pollution index calculations, Zn and Se posed the highest contamination while As and Cd posed the lowest contamination. The mERM-Q values indicated that the probability of toxicity varied from 21 to 49%, while ecological indices indicated that ER (2.0-23.7) and RI (67.3-106.2) values were lower than a threshold value for all samples.en_US
dc.identifier.doi10.14744/sigma.2021.00030en_US
dc.identifier.endpage433en_US
dc.identifier.issn1304-7205
dc.identifier.issn1304-7191
dc.identifier.issue4en_US
dc.identifier.startpage422en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12885/1998
dc.identifier.volume39en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.institutionauthorYakamercan, Elif
dc.institutionauthorAygün, Ahmet
dc.language.isoenen_US
dc.publisherYıldız Teknik Üniversitesien_US
dc.relation.ispartofSIGMA JOURNAL OF ENGINEERING AND NATURAL SCIENCES-SIGMA MUHENDISLIK VE FEN BILIMLERI DERGISIen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectEcological risk assessmenten_US
dc.subjectHeavy metalen_US
dc.subjectPollution indicesen_US
dc.subjectSewage sludgeen_US
dc.titleEcological risk assessment of domestic sewage sludge: a case studyen_US
dc.typeArticleen_US

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