Nitrification onto a rotating electro-biological contactor

• Autorzy: Rodziewicz J. , Filipkowska U.

Warianty tytułu

PL

Nitryfikacja na elektrobiologicznym złożu tarczowym

• Języki publikacji: EN

Abstrakty

EN

The goal of the conducted experiment was to determine the electric current impact on the efficiency of nitrogen compounds oxidation at COD to total Kjeldahl’s nitrogen ratio of 20, 10, 5. The experiments were run in bench scale, in a rotating electro-biological contactor (REBC) under both, conventional conditions (i.e. without electric current) and with electric current passage at the following densities: 0.2 A m⁻², 0.8 A m⁻², and 1.5 A m⁻². The cathode comprised stainless steel discs with immobile biofilm, and the anode a stainless steel electrode, submerged in waste water contained in the flow-tank of the contactor. The process of nitrogen oxidation was the most effective with electric current passage at the density of 1.5 A m⁻² regardless of applied COD/NTK ratio.

PL

Celem doświadczenia było określenie wpływu przepływu prądu elektrycznego na sprawność utleniania związków azotu gdy stosunek ChZT do azotu ogólnego Kjeldahla wynosił 20, 10 i 5. Badania prowadzono w skali laboratoryjnej na elektrobiologicznym złożu tarczowym (REBC) gdy nie przepływał prąd elektryczny, oraz gdy przepływał prąd elektryczny o gęstości: 0,2 A m⁻², 0,8 A m⁻², 1,5 A m⁻². Katodą były tarcze ze stali nierdzewnej z unieruchomioną błoną biologiczną, anodą – elektroda ze stali nierdzewnej, zanurzona w ściekach komory przepływowej złoża. Najefektywniej proces utleniania azotu przebiegał gdy przepływał prąd elektryczny o gęstości 1,5 A m⁻², niezależnie od stosunku ChZT:NTK.

Słowa kluczowe

EN

nitrification; rotating electro-biological contactor; electrolysis

• Wydawca: -
• Czasopismo: Polish Journal of Natural Sciences
• Rocznik: 2011
• Tom: 26
• Numer: 4
• Opis fizyczny: p.311-321,fig.,ref.

Twórcy

autor

Rodziewicz J.

• Department of Environmental Protection Engineering, University of Warmia and Mazury in Olsztyn, Romana Prawochenskiego 1, 10-957 Olsztyn, Poland

autor

Filipkowska U.

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