scholarly journals Membrane-less microbial fuel cell: Monte Carlo simulation and sensitivity analysis for COD removal in dewatered sludge

AIP Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 065016
Author(s):  
Muaz Mohd Zaini Makhtar ◽  
Husnul Azan Tajarudin ◽  
Mohd Dinie Muhaimin Samsudin ◽  
Vel Murugan Vadivelu ◽  
Noor Fazliani Shoparwe ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Cod Removal ◽  
Dewatered Sludge

scholarly journals Effect of Anolyte pH on the Performance of a Dual-Chambered Microbial Fuel Cell Operated with Different Biomass Feed

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Md. Abdul Halim ◽  
Md. Owaleur Rahman ◽  
Mohammad Ibrahim ◽  
Rituparna Kundu ◽  
Biplob Kumar Biswas
Keyword(s):  
Wastewater Treatment ◽  
Fuel Cell ◽  
River Water ◽  
Microbial Fuel Cell ◽  
Alternative Energy ◽  
Coulombic Efficiency ◽  
Oxygen Demand ◽  
Cod Removal ◽  
Bioelectricity Generation ◽  
Alternative Energy Resources

Finding sustainable alternative energy resources and treating wastewater are the two most important issues that need to be solved. Microbial fuel cell (MFC) technology has demonstrated a tremendous potential in bioelectricity generation with wastewater treatment. Since wastewater can be used as a source of electrolyte for the MFC, the salient point of this study was to investigate the effect of pH on bioelectricity production using various biomass feed (wastewater and river water) as the anolyte in a dual-chambered MFC. Maximum extents of power density (1459.02 mW·m−2), current density (1288.9 mA·m−2), and voltage (1132 mV) were obtained at pH 8 by using Bhairab river water as a feedstock in the MFC. A substantial extent of chemical oxygen demand (COD) removal (94%) as well as coulombic efficiency (41.7%) was also achieved in the same chamber at pH 8. The overall performance of the MFC, in terms of bioelectricity generation, COD removal, and coulombic efficiency, indicates a plausible utilization of the MFC for wastewater treatment as well as bioelectricity production.

scholarly journals Study of the Effect of Activated Carbon Cathode Configuration on the Performance of a Membrane-Less Microbial Fuel Cell

Catalysts ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 619
Author(s):  
M. L. Jiménez González ◽  
Carlos Hernández Benítez ◽  
Zabdiel Abisai Juarez ◽  
Evelyn Zamudio Pérez ◽  
Víctor Ángel Ramírez Coutiño ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Removal Efficiency ◽  
Internal Resistance ◽  
Cod Removal ◽  
The Other ◽  
Cod Removal Efficiency ◽  
Water Recirculation ◽  
Better Than

In this paper, the effect of cathode configuration on the performance of a membrane-less microbial fuel cell (MFC) was evaluated using three different arrangements: an activated carbon bed exposed to air (MFCE), a wetland immersed in an activated carbon bed (MFCW) and a cathode connected to an aeration tower featuring a water recirculation device (MFCT). To evaluate the MFC performance, the efficiency of the organic matter removal, the generated voltage, the power density and the internal resistance of the systems were properly assessed. The experimental results showed that while the COD removal efficiency was in all cases over 60% (after 40 days), the MFCT arrangement showed the best performance since the average removal value was 82%, compared to close to 70% for MFCE and MFCW. Statistical analysis of the COD removal efficiency confirmed that the performance of MCFT is substantially better than that of MFCE and MFCW. In regard to the other parameters surveyed, no significant influence of the different cathode arrangements explored could be found.

Coupling of anaerobic digester and microbial fuel cell for COD removal and ammonia recovery

2015 ◽  
Vol 195 ◽  
pp. 217-222 ◽  
Author(s):  
Taeyoung Kim ◽  
Junyeong An ◽  
Jae Kyung Jang ◽  
In Seop Chang
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Anaerobic Digester ◽  
Cod Removal ◽  
Ammonia Recovery

scholarly journals Energy capture and nutrients removal enhancement through a stacked constructed wetland incorporated with microbial fuel cell

2017 ◽  
Vol 76 (1) ◽  
pp. 28-34 ◽  
Author(s):  
Lei Xu ◽  
Yaqian Zhao ◽  
Tongyue Wang ◽  
Ranbin Liu ◽  
Fei Gao
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Removal Efficiency ◽  
Oxygen Demand ◽  
Open Circuit ◽  
Cod Removal ◽  
Electrical Performance ◽  
Electricity Production ◽  
Performance Reduction ◽  
Tiered System

To improve the sustainability of constructed wetlands (CWs), a novel tiered wetland system integrated with a microbial fuel cell (MFC) was developed in this study. Compared to the single stage CW, chemical oxygen demand (COD) removal efficiency was improved from 83.2% to 88.7%. More significantly, this tiered system significantly enhanced total nitrogen removal efficiency (an increase from 53.1% to 75.4%). In terms of MFC integration, a gradually decreased performance in electricity production was observed during its 3 months of operation (the voltage dropped from nearly 600 mV to less than 300 mV), which resulted in a reduction of power density from around 2 W/m3 to less than 0.5 W/m3. The deterioration in performance of the air-cathode is the main reason behind this, since the electrode potential of the cathode under open circuit reduced from 348.5 mV to 49.5 mV while the anode potential kept constant at around −400 mV. However, in spite of its electrical performance reduction, it was proved that MFC integration enhanced COD removal and the nitrification process. Further work is needed to improve the stability and feasibility of this new system.

Risk Management of Construction Schedule by PERT with Monte Carlo Simulation

2014 ◽  
Vol 548-549 ◽  
pp. 1646-1650 ◽  
Author(s):  
Yang Liu ◽  
Yan Li
Keyword(s):  
Sensitivity Analysis ◽  
Monte Carlo Simulation ◽  
Monte Carlo ◽  
Critical Path ◽  
Total Duration ◽  
Control Points ◽  
Schedule Management ◽  
Simulation Results ◽  
Critical Paths ◽  
Construction Schedule

It has been proved that the construction schedule management was an uncertain problem. Traditional CPM method was a good way to define the total duration and critical paths but can not solve uncertainty. The paper use CPM to define the duration and critical path firstly, then defined the parameters with Delphi and make Monte Carlo simulation. Through simulation results, it is found that the probability to finish the work on time was only 35.3%. The following step is to make sensitivity analysis, through the calculation, the work which has large influence was found and treat as key control points. It is proved that Monte Carlo simulation is useful to solve the problem of construction schedule management.

Sign in / Sign up

Export Citation Format

Share Document