The Influence of Electrical Current Density and Type of the External Source of Carbon on Nitrogen and Phosphorus Efficiency Removal in the Sequencing Batch Biofilm Reactor

• Autorzy: Kłodowska I. , Rodziewicz J. , Janczukowicz W.

Identyfikatory

DOI

10.12911/22998993/89811

• Języki publikacji: EN

Abstrakty

EN

This work presents the results of a study on the effect of electrical current density (53, 105, 158 and 210 mA/m²), type of the external source of carbon (citric acid, potassium bicarbonate), and C/N_NO3 ratio (0.5, 1.0 and 1.5) on the effectiveness of nitrogen and phosphorus removal from synthetic wastewater with physicochemical parameters typical of municipal sewage subjected to bio-treatment in the highly efficient system for organic compounds removal ensuring efficient course of the nitrification process. The denitrification efficiency was found to depend on the type and dose of carbon and on the electrical current density. Higher values of this parameter were determined in the reactor with citric acid than in one with potassium bicarbonate used as carbon sources. Total phosphorus was removed in the processes of electrocoagulation and biomass growth. Higher efficiency of dephosphatation was achieved in the reactor with electrical current passage than in the reactor without it. The type of carbon source had little effect on the dephosphatation efficiency. The use of electrical current density of 210 mA/m² and citric acid as a carbon source with C/N=1.5 allowed achieving 87.61(±1.6)% efficiency of denitrification and 97.69(±2.1)% efficiency of dephosphatation.

Słowa kluczowe

EN

bio-electrochemical reactor; external source of carbon; citric acid; potassium bicarbonate; denitrification; dephosphatation

• Wydawca: Polskie Towarzystwo Inżynierii Ekologicznej ; Lublin University of Technology
• Czasopismo: Journal of Ecological Engineering
• Rocznik: 2018
• Tom: Vol. 19, nr 5
• Strony: 172--179
• Opis fizyczny: Bibliogr. 26 poz., rys.

Twórcy

autor

Kłodowska I.

• University of Warmia and Mazury in Olsztyn, Faculty of Environmental Sciences, Department of Environment Engineering, Warszawska 117a, 10-719 Olsztyn, Poand

autor

Rodziewicz J.

• University of Warmia and Mazury in Olsztyn, Faculty of Environmental Sciences, Department of Environment Engineering, Warszawska 117a, 10-719 Olsztyn, Poand

autor

Janczukowicz W.

• University of Warmia and Mazury in Olsztyn, Faculty of Environmental Sciences, Department of Environment Engineering, Warszawska 117a, 10-719 Olsztyn, Poand

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