Microbial fuel celi with Ni-Co cathode

• Autorzy: Włodarczyk B. , Włodarczyk P. P.

Identyfikatory

DOI

10.15199/67.2017.8.3

Warianty tytułu

PL

Mikrobiologiczne ogniwa paliwowe z katodą Ni-Co

• Języki publikacji: EN

Abstrakty

EN

With the increasing standard of living, the energy consumption increases as well. So, waste production, like wastewater, increases as well too. But, there is a possibility to combine energy production and wastewater treatment. Technical device that can accomplish this task is a microbial fuel cell. In microbial fuel cells activated sludge bacteria can be used for electricity production during wastewater treatment. One of the problems of this solution is a low current density obtained in microbial fuel cells. Nonetheless, it is possible to increase the current density by using the catalyst for electrodes. The possibility of wastewater treatment using the Ni-Co alloy as cathode catalyst for microbial fuel cells is presented in this paper. The measurements included a preparation of catalyst and comparison of changes in the concentration of COD, NH* and N03 in the reactor with aeration and with using a microbial fuel cell (with Ni-Co cathode). The reduction time for COD with the use of microbial fuel cell with the Ni-Co catalyst is similar to the reduction time with aeration. The current density (0.26 mA/cm2) and amount of energy (0.94 Wh) obtained in reactor (151) are low. But, the obtained amount of energy allows elimination of the energy needed for reactor aeration. It has been shown that the Ni-Co can be used as cathode catalyst in microbial fuel cells.

PL

Wraz ze wzrostem poziomu życia wzrasta zarówno zużycie energii, jak i ilość ścieków. Istnieje jednak możliwość produkcji energii z jednoczesnym oczyszczaniem ścieków. Urządzeniem, które może zrealizować to zadanie jest mikrobiologiczne ogniwo paliwowe. W ogniwach tego typu bakterie osadu czynnego wykorzystane są do produkcji energii podczas oczyszczania ścieków, jednym z ograniczeń tego rozwiązania jest niska gęstość uzyskiwanego prądu. Możliwe jest jednak podwyższenie tego parametru przy wykorzystaniu odpowiedniego katalizatora elektrod. W artykule przedstawiono możliwość wykorzystania stopu Ni-Co jako katalizatora katody. Badania obejmowały przygotowanie elektrody oraz porównanie zmian stężenia ChZT, NHt' oraz N03 w reaktorze z napowietrzaniem i przy wykorzystaniu mikrobiologicznego ogniwa paliwowego (z katodą Ni-Co). Czas redukcji ChZT przy wykorzystaniu mikrobiologicznego ogniwa paliwowego jest porównywalny z czasem uzyskanym podczas napowietrzania. Gęstość prądu (0,26 mA/cm2) i ilość energii (0,94 Wh) uzyskanej w reaktorze (15 I) jest niska, jednak rozwiązanie to pozwala na eliminację ko¬nieczności napowietrzania reaktora. Wykazano więc możliwość wykorzystania stopu Ni-Co jako katalizatora katody w mikrobiologicznym ogniwie paliwowym.

Słowa kluczowe

EN

microbial fuel cell; Ni-Co alloy; cathode; wastewater treatment; renewable energy sources; environmental engineering; clean technology

PL

mikrobiologiczne ogniwa paliwowe; katoda; stop Ni-Co; oczyszczanie ścieków; odnawialne źródła energii; ochrona środowiska; inżynieria środowiska; czyste technologie

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Rudy i Metale Nieżelazne Recykling
• Rocznik: 2017
• Tom: R. 62, nr 8
• Strony: 11--14
• Opis fizyczny: Bibliogr. 26 poz., rys., tab.

Twórcy

autor

Włodarczyk B.

• University of Opole, Faculty of Natural Science and Technoiogy, Department of Process Engineering, ul. Dmowskiego 7-9,45-365 Opole

autor

Włodarczyk P. P.

• University of Opole, Faculty of Natural Science and Technoiogy, Department of Process Engineering, ul. Dmowskiego 7-9,45-365 Opole

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