New Approach for Sewage Sludge Stabilization with Ozone

Patryk Kosowski, Małgorzata Szostek, Rafał Pieniążek, Piotr Antos, Karol Skrobacz, Tomasz Piechowiak, Anna Żaczek, Radosław Józefczyk and Maciej Balawejder
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Patryk Kosowski: Department of Food Chemistry and Toxicology, Institute of Food Technology and Human Nutrition, University of Rzeszow, St. Ćwiklińskiej 2, 35-601 Rzeszów, Poland
Małgorzata Szostek: Department of Soil Science, Environmental Chemistry and Hydrology, Institute of Agriculture Sciences, Land Management and Environmental Protection, University of Rzeszów, Zelwerowicza 8b, 35-601 Rzeszów, Poland
Rafał Pieniążek: Department of Soil Science, Environmental Chemistry and Hydrology, Institute of Agriculture Sciences, Land Management and Environmental Protection, University of Rzeszów, Zelwerowicza 8b, 35-601 Rzeszów, Poland
Piotr Antos: Department of Computer Science in Management, Faculty of Management and Marketing, Rzeszow University of Technology, al. Powstańców Warszawy 8, 35-959 Rzeszów, Poland
Karol Skrobacz: Department of Food Chemistry and Toxicology, Institute of Food Technology and Human Nutrition, University of Rzeszow, St. Ćwiklińskiej 2, 35-601 Rzeszów, Poland
Tomasz Piechowiak: Department of Food Chemistry and Toxicology, Institute of Food Technology and Human Nutrition, University of Rzeszow, St. Ćwiklińskiej 2, 35-601 Rzeszów, Poland
Anna Żaczek: Department of Microbiology, Institute of Medical Sciences, University of Rzeszow, Rejtana 16C, 35-959 Rzeszów, Poland
Radosław Józefczyk: Department of Food Chemistry and Toxicology, Institute of Food Technology and Human Nutrition, University of Rzeszow, St. Ćwiklińskiej 2, 35-601 Rzeszów, Poland
Maciej Balawejder: Department of Food Chemistry and Toxicology, Institute of Food Technology and Human Nutrition, University of Rzeszow, St. Ćwiklińskiej 2, 35-601 Rzeszów, Poland

Sustainability, 2020, vol. 12, issue 3, 1-9

Abstract: Due to a variety of physicochemical properties of the sewage sludge the selection of proper methods for its stabilization is difficult. In this work, the effect of ozone treatment on physico-chemical and microbiological parameters of sludge was investigated. Ozonation was carried out using a counter-current bed reactor, which ensures optimal mass transfer and the contact time of ozone with excessive sediment. The ozonation process was carried out for 15, 30, 45 and 60 min at an ozone concentration of 90–110 ppm. As a result of the ozone treatment it was possible to reduce the number of colony forming units. Also the potential for dewatering of the sludge improved while the total solids of the sludge did not change. The values of COD and BOD 5 increased with time of the process.

Keywords: sewage sludge; ozonation; stabilization of the sewage sludge (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:gam:jsusta:v:12:y:2020:i:3:p:886-:d:312777

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