scholarly journals BIOKONVERSI PADA PENGOLAHAN AIR LIMBAH INDUSTRI PULP DAN KERTAS MENGGUNAKAN MEMBRANE-LESS MICROBIAL FUEL CELL (ML-MFC)

2015 ◽  
Vol 5 (01) ◽  
Author(s):  
Kristaufan Joko Pramono ◽  
Krisna Adhitya Wardana ◽  
Prima Besty Asthary ◽  
Saepulloh .
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cell ◽  
Surface Area ◽  
Microbial Fuel Cell ◽  
Supply Voltage ◽  
Pulp And Paper ◽  
Electricity Production ◽  
Organic Load ◽  
Anode Surface ◽  
Renewable Energy Resources

Pulp and paper industry produces large amount of wastewater that has high pollution potentials. Nowadays, development of renewable energy resources is being researched. Membrane-less Microbial Fuel Cell (ML-MFC) can be an alternative for wastewater treatment and bioenergy producers of renewable electricity. This study was subjected to evaluate the performance of ML-MFC in pulp and paper wastewater treatment and to analyze the potentials production of electricity energy. ML-MFC reactors in laboratory scale used in this experiment were made of acrylic, provided with electrodes functioning as anode and cathode which have surface area of 1.4778 x 10-2 m2 and 4.926 x 10-3 m2, respectively. In this experiment, wastewater from pulp and paper mill was continuously fed into the reactor with retention time of 48 hours and organic load about 0.23 – 0.51 kg COD/m3.day. The results showed that there was potential of electricity production from pulp and paper mill’s wastewater treatment by ML-MFC. The maximum COD reduction and maximum power supply voltage that could be achieved were 38.50% and 118.8 mV, respectively. The maximum electric power obtained on the anode surface area of 1.4778 x 10-2 m2 was 8.46 mW/m2 when the electric current value was 101.50 mA/m2 and the resistance was 500 Ω.Keywords: wastewater, organic, bioconversion, electricity, membrane-less microbial fuel cell (ML-MFC) ABSTRAKIndustri pulp dan kertas menghasilkan air limbah dalam jumlah besar yang memiliki potensi pencemaran tinggi. Saat ini, upaya pengembangan sumber energi terbarukan terus dilakukan. Membraneless Microbial Fuel Cell (ML-MFC) adalah salah satu alternatif pengolahan air limbah dan penghasil bioenergi listrik yang dapat terbarukan. Penelitian ini dilakukan untuk mengevaluasi kinerja ML-MFC dalam pengolahan air limbah pulp dan kertas proses biologi dan menganalisa potensi produksi energi listrik. Reaktor ML-MFC skala laboratorium yang digunakan dalam percobaan terbuat dari akrilik dengan rangkaian elektroda yang berfungsi sebagai anoda dengan luas permukaan 1,4778 x 10-2 m2 dan katoda dengan luas permukaan 4,926 x 10-3 m2. Pada percobaan ini, air limbah industri pulp dan kertas dialirkan melalui reaktor secara kontinu dengan waktu tinggal 48 jam dan beban organik 0,23 – 0,51 kg COD/m3.hari. Hasil penelitian menunjukkan bahwa terdapat potensi produksi energi listrik dari proses pengolahan air limbah industri pulp dan kertas oleh ML-MFC. Reduksi maksimum nilai COD dan tegangan listrik maksimum yang dapat dicapai adalah 38,50% dan 118,8 mV. Daya listrik maksimum yang diperoleh pada luas permukaan anoda sebesar 1,4778 x 10-2 m2 adalah 8,46 mW/m2 pada saat nilai arus listrik 101,50 mA/m2 dan beban resistansi 500 Ω.Kata kunci: air limbah, organik, biokonversi, energi listrik, membrane-less microbial fuel cell (ML-MFC)

scholarly journals The effects of biofilm and selective mixed culture on the electricity outputs and wastewater quality of tempe liquid waste based microbial fuel cell

REAKTOR ◽  
2018 ◽  
Vol 18 (2) ◽  
pp. 84
Author(s):  
Tania Surya Utami ◽  
Rita Arbianti ◽  
M Mariana ◽  
Nathania Dwi Karina ◽  
Vifki Leondo
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Mixed Culture ◽  
Biofilm Formation ◽  
Formation Time ◽  
Electricity Production ◽  
Gram Negative Bacteria ◽  
Treatment Unit ◽  
Gram Negative

Microbial Fuel Cell (MFC) technology is highly prospective to be developed because it could be utilized as the alternative electricity sources and simultaneously as the wastewater treatment unit using microorganism as catalyst. Industrial Tempe wastewater has the potential to be used as MFC substrate since it still contains high nutrition for microbe and could pollute the environment if it disposed before being processed first. This study focused on investigating the effect of selective mixed culture addition and biofilm formation on the electricity production and the wastewater treatment aspects with tubular single chamber membranless reactor and industrial Tempe wastewater substrate. The result showed that, with the addition of selective mixed culture, the optimum electricity production obtained with addition of 1 ml gram-negative bacteria with increase in electricity production up to 92.14% and average voltage of 17.91 mV, while the optimum decreased levels of COD and BOD obtained with addition of 5 ml gram-negative bacteria which are 29.32% and 51.32%. On the biofilm formation experiment, optimum electricity production obtained from biofilm formation time for 14 days with increase in electricity production up to 10-folds and average voltage of 30.52 mV, while the optimum decreased levels of COD and BOD obtained from biofilm formation time for 7 days which are 18.2% and 35.9%.Keywords : biofilm, Microbial Fuel Cell, selective mixed culture, Tempe wastewater, tubular reactor

A single chamber packed bed microbial fuel cell biosensor for measuring organic content of wastewater

2009 ◽  
Vol 60 (11) ◽  
pp. 2879-2887 ◽  
Author(s):  
Mirella Di Lorenzo ◽  
Tom P. Curtis ◽  
Ian M. Head ◽  
Sharon B. Velasquez-Orta ◽  
Keith Scott
Keyword(s):  
Fuel Cell ◽  
Surface Area ◽  
Microbial Fuel Cell ◽  
Packed Bed ◽  
Organic Content ◽  
Anode Surface ◽  
Carbon Cloth ◽  
Single Chamber ◽  
Steady State Current ◽  
Bed Thickness

This study reports an investigation of the effect of the anode surface area on the performance of a single chamber microbial fuel cell (SCMFC) based biosensor for measuring the organic content of wastewater. A packed bed of graphite granules was used as the anode. The surface area of the anode was changed by altering the granule bed thickness (0.3 cm and 1 cm). The anode surface area was found to play a role in the dynamic response of the system. For a granule bed thickness of 1 cm and with an external resistance of 500 Ω, the response time (defined as the time required to achieve 95% of the steady-state current) was reduced by approximately 65% in comparison to a SCMFC biosensor with a carbon cloth anode.

scholarly journals Wastewater Treatment and Electricity Production in a Microbial Fuel Cell with Cu–B Alloy as the Cathode Catalyst

Catalysts ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 572 ◽  
Author(s):  
Paweł P. Włodarczyk ◽  
Barbara Włodarczyk
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Microbial Fuel Cells ◽  
Oxygen Demand ◽  
Electricity Production ◽  
Cathode Catalyst ◽  
Similar Reduction ◽  
Fuel Cell Operation

The possibility of wastewater treatment and electricity production using a microbial fuel cell with Cu–B alloy as the cathode catalyst is presented in this paper. Our research covered the catalyst preparation; measurements of the electroless potential of electrodes with the Cu–B catalyst, measurements of the influence of anodic charge on the catalytic activity of the Cu–B alloy, electricity production in a microbial fuel cell (with a Cu–B cathode), and a comparison of changes in the concentration of chemical oxygen demand (COD), NH4+, and NO3– in three reactors: one excluding aeration, one with aeration, and during microbial fuel cell operation (with a Cu–B cathode). During the experiments, electricity production equal to 0.21–0.35 mA·cm−2 was obtained. The use of a microbial fuel cell (MFC) with Cu–B offers a similar reduction time for COD to that resulting from the application of aeration. The measured reduction of NH4+ was unchanged when compared with cases employing MFCs, and it was found that effectiveness of about 90% can be achieved for NO3– reduction. From the results of this study, we conclude that Cu–B can be employed to play the role of a cathode catalyst in applications of microbial fuel cells employed for wastewater treatment and the production of electricity.

scholarly journals Microbial Fuel Cell with Ni–Co Cathode Powered with Yeast Wastewater

Energies ◽  
2018 ◽  
Vol 11 (11) ◽  
pp. 3194 ◽  
Author(s):  
Paweł Włodarczyk ◽  
Barbara Włodarczyk
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Sewage Treatment ◽  
Sewage Treatment Plant ◽  
Treatment Plant ◽  
Oxygen Demand ◽  
Electricity Production ◽  
High Concentration ◽  
Yeast Wastewater

Wastewater originating from the yeast industry is characterized by high concentration of pollutants that need to be reduced before the sludge can be applied, for instance, for fertilization of croplands. As a result of the special requirements associated with the characteristics of this production, huge amounts of wastewater are generated. A microbial fuel cell (MFC) forms a device that can apply wastewater as a fuel. MFC is capable of performing two functions at the same time: wastewater treatment and electricity production. The function of MFC is the production of electricity during bacterial digestion (wastewater treatment). This paper analyzes the possibility of applying yeast wastewater to play the function of a MFC (with Ni–Co cathode). The study was conducted on industrial wastewater from a sewage treatment plant in a factory that processes yeast sewage. The Ni–Co alloy was prepared by application of electrochemical method on a mesh electrode. The results demonstrated that the use of MFC coupled with a Ni–Co cathode led to a reduction in chemical oxygen demand (COD) by 90% during a period that was similar to the time taken for reduction in COD in a reactor with aeration. The power obtained in the MFC was 6.1 mW, whereas the volume of energy obtained during the operation of the cell (20 days) was 1.27 Wh. Although these values are small, the study found that this process can offer an additional level of wastewater treatment as a huge amount of sewage is generated in the process. This would provide an initial reduction in COD (and save the energy needed to aerate wastewater) as well as offer the means to generate electricity.

Effect of increasing anode surface area on the performance of a single chamber microbial fuel cell

2010 ◽  
Vol 156 (1) ◽  
pp. 40-48 ◽  
Author(s):  
Mirella Di Lorenzo ◽  
Keith Scott ◽  
Tom P. Curtis ◽  
Ian M. Head
Keyword(s):  
Fuel Cell ◽  
Surface Area ◽  
Microbial Fuel Cell ◽  
Anode Surface ◽  
Single Chamber

scholarly journals Bioconversion on Wastewater of Soybeans using Microbial Fuel Cell

2019 ◽  
Vol 1 (1) ◽  
Author(s):  
Yohanes A Cahyono ◽  
Tilana Madurani ◽  
Widya F Azzahra ◽  
Retno A S Lestari
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Electrical Energy ◽  
Electricity Production ◽  
Anode Chamber ◽  
Cathode Chamber ◽  
Renewable Electricity ◽  
Electric Currents ◽  
Washing Wastewater

Microbial fuel cell (MFC) is a technology developed to obtain new sources of renewable energy to produce electricity.  It can be an alternative for wastewater treatment and bioenergy producers of renewable electricity. This method requires bacteria to convert substrate in wastewater into electrical energy. The mechanism of MFC were oxidation of substrate by bacteria to produce electrons and protons at the anode. The proton in anode chamber passes through a membrane exchange to the cathode chamber, however the electrons couldn’t through. It caused accumulation of electron in anode chamber and then both of electrode had a potential difference, so electron in anode chamber passed through membrane exchange to cathode chamber. In this study used dual-chambers reactors with each compartment having 8 cm × 10 cm × 10 cm of dimensions and 5 mm of thickness. This study was subjected to evaluate the performance of MFC in soybean washing wastewater treatment with bacteria of EM4 to analyze the potentials production of electricity energy. The focus of this study was to evaluate the effect of time to electricity. MFC system was observed for 40 hours, measurement of voltages and electric currents performed every 4 hours. The results showed that there was potential of electricity production from soybean wastewater treatment by MFC. The maximum electricity reached in soybean wastewater media were voltage 441 mV (at 24 h), the electric currents 170 µA and the power density 51, 35 mW/m2 (at 24 h after acclimatization). Increasing of time effect to decreasing of electricity produced.Keywords: bioenergy, electricity, microbial fuel cell, membrane, wastewater soybean

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