Drop in Conductivity of Sewage Sludge in the Process of Autothermal Thermophilic Aerobic Digestion

• Autorzy: Bartkowska I.

Identyfikatory

DOI

10.12911/22998993/74280

• Języki publikacji: EN

Abstrakty

EN

The article presents research on the assessment of electrolytic conductivity changes of sludge during the process of its autothermal thermophilic aerobic digestion (ATAD), which takes place in a two-stage installation system, operating in a municipal sewage-treatment plant. In the years 2012–2014 sludge was studied and the results were analyzed. Thickened sludge in the intermediate tank, which was then directed to installation reactors, was examined. Conductivity was measured in each tank. In this manner collected results made it possible to follow the changes of this index at consecutive stages of the system. The results were statistically analyzed and it was determined to what degree, as a result of an objective process, the values of processed sludge conductivity would change. The conclusions from the carried-out studies and from own experiments are also presented.

Słowa kluczowe

EN

autothermal stabilization of sewage sludge; conductivity of sewage sludge; neutralization of sewage sludge; sanitation of sewage sludge; sewage sludge processing

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2017
• Tom: Vol. 18, nr 4
• Strony: 67--75
• Opis fizyczny: Bibliogr. 27 poz., tab., rys.

Twórcy

autor

Bartkowska I.

• Department of Environmental Engineering Systems, Bialystok University of Technology, Wiejska 45A, 15-351 Bialystok, Poland

Bibliografia

• 1. Augustin O., Bartkowska I., Dzienis L. 2007. Efficiency of wastewater sludge disinfection by autoheated thermophilic aerobic digestion (ATAD). W: IWA Specialist Conference: Moving Forward : Wasterwater Biosolids Sustainability: technical, managerial and public synergy : conference proceedings, Moncton, Canada, June 24–27, 1037–1043.
• 2. Bartkowska I. 2005. Operation’s initial period of the autothermal thermophilic sludge instalation (ATAD) in Giżycko waste water treatment plant. Polish Journal of Natural Sciences, 18 (1), 105–116.
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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).