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Oczyszczanie scieków w mikrobiologicznym ogniwie paliwowym z anodą Cu-B

Wastewater treatment in microbial fuel cell with Cu-B anode

Oczyszczanie scieków w mikrobiologicznym ogniwie paliwowym z anodą Cu-B

Abstract

Technology of microbial fuel cells (MFC), allowing for the direct production of electricity from biodegradable materials can provide the future of not only energy production, but also wastewater treatment technologies. The fuel for microbial fuel cells can be every source of biodegradable organic matter. An important feature of this technology is to provide cells with very low investment costs. In microbial fuel cell as electrode are used carbon electrodes are most common. The paper presents an analysis of the possibilities of using Cu-B alloy as the electrode in microbial fuel cells. The catalyst should have high catalytic activity and low price. It is therefore necessary to search for materials that meet both of these criteria. The presented measurements include a comparison of changes in the concentration of COD, NH4+ and NO3- in the reactor without aeration, with aeration and with using a microbial fuel cell. It has been shown that the Cu-B alloy may be used as electrode in MFC. The reduction time for COD with the use of microbial fuel cell with the steel catalyst is similar to the reduction time with aeration. However, the characteristic of the curve for aeration is more advantageous for the wastewater treatment process. However, the use of microbial fuel cell allow save energy required for aeration. The obtained current density was approx. 0.18 mA/cm2. The measurements showed that microbial fuel cells may contribute to the development of renewable energy sources while being used for wastewater treatment plant or assisting their purification. The search for new catalysts can contribute to increasing the efficiency of microbial fuel cells both in terms of wastewater treatment, as well as the amount of energy produced. The resulting current density is small, however, to find new, efficient catalysts may allow for more rapid development of renewable energy technologies.

Mikrobiologiczne ogniwa paliwowe, których technologia opiera się na bezpośredniej produkcji energii elektrycznej z surowców biodegradowalnych z pewnością może być rozpatrywana jako technologia przyszłości zarówno pod względem produkcji energii jak i oczyszczania ścieków. Istotnym aspektem staje się zatem poszukiwanie takich ogniw, których koszty inwestycyjne byłyby niewielkie. W przypadku mikrobiologicznych ogniw paliwowych ze względów inwestycyjnych najczęściej stosuje się elektrody węglowe. Praca przedstawia analizę możliwości wykorzystania stopu Cu-B jako katalizatora elektrody paliwowej. Metodyka pomiarowa obejmuje porównanie zmian stężenia ChZT, NH4+ oraz NO3- w reaktorze z napowietrzaniem oraz przy wykorzystaniu mikrobiologicznego ogniwa paliwowego. Badania wykazują, że istnieje możliwość wykorzystania stopu Cu-B jako katalizatora elektrody paliwowej. Czas redukcji ChZT przy wykorzystaniu mikrobiologicznego ogniwa paliwowego z katalizatorem Cu-B zbliżony jest do czasu redukcji przy napowietrzaniu. Charakterystyka krzywej dla napowietrzania jest jednak bardziej korzystna dla procesu oczyszczania ścieków. Jednak wykorzystanie mikrobiologicznego ogniwa paliwowego pozwala na zaoszczędzenie energii koniecznej do napowietrzania. Uzyskiwana gęstość prądu wynosiła ok. 0,18 mA/cm2. Pomiary wykazują, że wykorzystanie mikrobiologicznych ogniw paliwowych do oczyszczania ścieków jest kierunkiem jak najbardziej słusznym, a jednocześnie może w przyszłości w znacznym stopniu przyczynić się do rozwoju odnawialnych źródeł energii.

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Keywords

odnawialne źródła energii, microbial fuel cell, wastewater treatment, environmental engineering, stop Cu-B, Cu-B alloy, oczyszczanie ścieków, inżynieria środowiska, renewable energy sources, mikrobiologiczne ogniwa paliwowe

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
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