Ecological risk assessment of domestic sewage sludge: a case study

Elif Yakamercan; Ahmet Aygün

Ecological risk assessment of domestic sewage sludge: a case study

Abstract

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.

Keywords

References

The article references can be accessed from the .pdf file.

Details

Primary Language

English

Subjects

Industrial Biotechnology

Journal Section

Research Article

Authors

Elif Yakamercan This is me
0000-0003-4176-1976
Türkiye

Ahmet Aygün ^* This is me
0000-0002-6321-0350
Türkiye

Publication Date

November 17, 2021

Submission Date

October 26, 2020

Acceptance Date

January 21, 2021

Published in Issue

Year 2021 Volume: 39 Number: 4

IZ

https://izlik.org/JA94RM87NB

Cite

RIS / Bibtex

APA

Yakamercan, E., & Aygün, A. (2021). Ecological risk assessment of domestic sewage sludge: a case study. Sigma Journal of Engineering and Natural Sciences, 39(4), 422-433. https://izlik.org/JA94RM87NB

AMA

1.Yakamercan E, Aygün A. Ecological risk assessment of domestic sewage sludge: a case study. SIGMA. 2021;39(4):422-433. https://izlik.org/JA94RM87NB

Chicago

Yakamercan, Elif, and Ahmet Aygün. 2021. “Ecological Risk Assessment of Domestic Sewage Sludge: A Case Study”. Sigma Journal of Engineering and Natural Sciences 39 (4): 422-33. https://izlik.org/JA94RM87NB.

EndNote

Yakamercan E, Aygün A (November 1, 2021) Ecological risk assessment of domestic sewage sludge: a case study. Sigma Journal of Engineering and Natural Sciences 39 4 422–433.

IEEE

[1]E. Yakamercan and A. Aygün, “Ecological risk assessment of domestic sewage sludge: a case study”, SIGMA, vol. 39, no. 4, pp. 422–433, Nov. 2021, [Online]. Available: https://izlik.org/JA94RM87NB

ISNAD

Yakamercan, Elif - Aygün, Ahmet. “Ecological Risk Assessment of Domestic Sewage Sludge: A Case Study”. Sigma Journal of Engineering and Natural Sciences 39/4 (November 1, 2021): 422-433. https://izlik.org/JA94RM87NB.

JAMA

1.Yakamercan E, Aygün A. Ecological risk assessment of domestic sewage sludge: a case study. SIGMA. 2021;39:422–433.

MLA

Yakamercan, Elif, and Ahmet Aygün. “Ecological Risk Assessment of Domestic Sewage Sludge: A Case Study”. Sigma Journal of Engineering and Natural Sciences, vol. 39, no. 4, Nov. 2021, pp. 422-33, https://izlik.org/JA94RM87NB.

Vancouver

1.Elif Yakamercan, Ahmet Aygün. Ecological risk assessment of domestic sewage sludge: a case study. SIGMA [Internet]. 2021 Nov. 1;39(4):422-33. Available from: https://izlik.org/JA94RM87NB