Gjornâl Furlan des SiencisFriulian Journal of Science

No. 25 (2018): GFS
RICERCJIS

The EOX parameter in characterisation of sewage sludge in Friuli Venezia Giulia

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  • DANIELE GOI,
  • ALI KHAKBAZ
DANIELE GOI
Dipartimento Politecnico di Ingegneria e Architettura, University of Udine, Udine, Italy
ALI KHAKBAZ
Dipartimento Politecnico di Ingegneria e Architettura, University of Udine, Udine, Italy

Peraulis clâf

  • EOX, Sewage sludge, Agricultural use

Cemût citâ

[1]
GOI, D. and KHAKBAZ, A. 2018. The EOX parameter in characterisation of sewage sludge in Friuli Venezia Giulia. Gjornâl Furlan des Siencis - Friulian Journal of Science. 25, 25 (May 2018), 77–82.

Ristret

Sewage sludge generated from wastewater treatment plants (WWTPs) has attracted greater attention because of its potential for improving soil properties and for providing important nutrient and trace element supplements that are essential for plant growth. In agricultural use of sewage sludge the pollutant risk for all sludge should be specifically evaluated due to the different characteristics of different types of sludge, which undergo different levels of treatment, as well as the extensive and variable nature of wastewater pollutant inputs. Sewage sludge generated from wastewater treatment plants in Friuli Venezia Giulia region were analysed to evaluate the extractable organic halogen (EOX) concentration. Ethyl acetate and n-hexane were used as extraction solvents and EOX values were determined coulometrically and compared with respect to the potential of solvents and size of WWTPs. For all sewage sludge samples, the obtained results proved ethyl acetate to be a more effective solvent in EOXdetermination. It was found that sewage sludge from small WWTPs are more suitable for agricultural use due to their low concentration of EOX.

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Riferiments

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