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Published on: August 14, 2020
Enhanced electricity generation by using algae biomass and activated sludge in microbial fuel cell
Naim Rashid1, Yu-Feng Cui, Muhammad Saif Ur Rehman
1Dept. of Civil and Environmental Engineering, Korea Advance Institute of Science and Technology, 373-1 Guseong dong, Yuseong-gu, Daejon 305-701, Republic of Korea.
The Science of the Total Environment
|April 16, 2013
Summary
This study demonstrates sustainable electricity generation using algae biomass in microbial fuel cells (MFCs). A concentration of 5 g/L algae biomass yielded the highest voltage and power output, proving its potential for energy production.
Area of Science:
- Biotechnology
- Renewable Energy
- Environmental Science
Background:
- Growing demand for low-cost, sustainable energy solutions.
- Exploration of waste materials for energy production is crucial.
- Microbial fuel cells (MFCs) offer a promising avenue for bioelectricity generation.
Purpose of the Study:
- To investigate the potential of algae biomass as a substrate for electricity production in MFCs.
- To determine optimal conditions for energy generation using algae biomass.
- To evaluate the performance of different algae biomass preparations in MFCs.
Main Methods:
- Utilized activated sludge as anode inoculum and nutrient source.
- Tested various concentrations (1-5 g/L) of dry algae biomass.
- Compared pre-treated and non-pre-treated algae biomass, as well as spent algae biomass.
Main Results:
- The highest voltage (0.89 V) and power density (1.78 W/m²) were achieved with 5 g/L algae biomass (5000 mg COD/L) at 1000 Ω resistance.
- Pre-treated algae biomass and activated sludge resulted in lower power output.
- Spent algae biomass showed reduced power generation compared to whole algae biomass.
Conclusions:
- Algae biomass is a viable substrate for high energy output in MFCs.
- Optimizing algae biomass concentration is key for maximizing electricity generation.
- Further research into pre-treatment methods may be necessary for enhanced performance.
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