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Ecological risk assessment of domestic sewage sludge: a case study

Yıl 2021, Cilt: 39 Sayı: 4, 422 - 433, 17.11.2021

Öz

This 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.

Kaynakça

  • The article references can be accessed from the .pdf file.
Yıl 2021, Cilt: 39 Sayı: 4, 422 - 433, 17.11.2021

Öz

Kaynakça

  • The article references can be accessed from the .pdf file.
Toplam 1 adet kaynakça vardır.

Ayrıntılar

Birincil Dil İngilizce
Konular Endüstriyel Biyoteknoloji
Bölüm Research Articles
Yazarlar

Elif Yakamercan Bu kişi benim 0000-0003-4176-1976

Ahmet Aygün Bu kişi benim 0000-0002-6321-0350

Yayımlanma Tarihi 17 Kasım 2021
Gönderilme Tarihi 26 Ekim 2020
Yayımlandığı Sayı Yıl 2021 Cilt: 39 Sayı: 4

Kaynak Göster

Vancouver Yakamercan E, Aygün A. Ecological risk assessment of domestic sewage sludge: a case study. SIGMA. 2021;39(4):422-33.

IMPORTANT NOTE: JOURNAL SUBMISSION LINK https://eds.yildiz.edu.tr/sigma/