Related Experiment Video
Updated: Jan 26, 2026

15:08
Probing and Mapping Electrode Surfaces in Solid Oxide Fuel Cells
Published on: September 20, 2012
16.5K
A New Technology Breaks Through: 1000-Litre Microbial Fuel Cell Generates Pure Water and Electricity
1Journalist science and technology.
Chimia
|April 13, 2019
Summary
Researchers developed a 14-meter microbial fuel cell system using electrogenic bacteria to generate electricity and purified water from wastewater. This innovative bio-electrochemical system aims to produce energy while saving electricity at a wastewater treatment plant.
Area of Science:
- Environmental Engineering
- Electrochemistry
- Microbiology
Background:
- Microbial fuel cells (MFCs), or bio-electrochemical systems, harness electrogenic bacteria for electricity generation.
- Previous research has focused on optimizing MFCs for energy production.
Purpose of the Study:
- To innovate and scale up MFC technology for practical energy and water purification applications.
- To investigate the use of bio-electrogenic microbes in a large-scale system for energy production and electricity savings.
Main Methods:
- Construction of a 14-meter long MFC device.
- Installation of the device in underground tunnels ('catacombs') at a wastewater treatment plant in Sion.
- Utilizing bio-electrogenic microbes for energy generation and water purification.
Main Results:
- Successful deployment of a scaled-up MFC system.
- Demonstration of energy production and water purification capabilities.
- Potential for electricity savings in wastewater treatment processes.
Conclusions:
- Large-scale MFC systems are feasible for simultaneous energy and purified water production.
- Bio-electrogenic microbes offer a sustainable solution for wastewater treatment, generating energy and reducing operational costs.
- This innovation represents a significant advancement in the practical application of bio-electrochemical systems.
Related Concept Videos
Batteries and Fuel Cells
30.8K
A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
30.8K
Electric Generator: Alternator
3.3K
Electric generators induce an emf by rotating a coil in a magnetic field. A simple alternator is an AC generator that creates electrical energy that varies sinusoidally with time. A simple alternator consists of a conducting loop that is placed inside a uniform magnetic field. The loop is connected to split rings connected to the external circuit with the help of brushes.
The magnetic flux passing through the coil varies sinusoidally as the loop rotates inside the magnetic field. This...
The magnetic flux passing through the coil varies sinusoidally as the loop rotates inside the magnetic field. This...
3.3K
Fixing Double-strand Breaks
14.4K
The double-stranded structure of DNA has two major advantages. First, it serves as a safe repository of genetic information where one strand serves as the back-up in case the other strand is damaged. Second, the double-helical structure can be wrapped around proteins called histones to form nucleosomes, which can then be tightly wound to form chromosomes. This way, DNA chains up to 2 inches long can be contained within microscopic structures in a cell. A double-stranded break not only damages...
14.4K
Fixing Double-strand Breaks
4.3K
4.3K
States of Water
56.5K
Water exists in any one of the three classical states: solid (ice), liquid (water), and gas (steam or water vapor). The state of water depends on i) the intermolecular forces that draw molecules together and ii) the kinetic energy that leads to movements that pull them apart.
Water freezes when the intermolecular forces are greater than the kinetic energy. Unlike most other substances, water is less dense in its solid state than in its liquid state. This is because each water molecule can form...
Water freezes when the intermolecular forces are greater than the kinetic energy. Unlike most other substances, water is less dense in its solid state than in its liquid state. This is because each water molecule can form...
56.5K
Need for Obtaining Pure Cultures
1.1K
Pure cultures, defined as the growth of a single microorganism species isolated from mixed populations, are fundamental tools in microbiological research and practical applications. These cultures ensure genetic and physiological uniformity, allowing researchers to study microbial traits under controlled conditions.Isolation and Maintenance of Pure CulturesObtaining a pure culture involves isolating a single microbial type from a mixed sample through techniques such as serial dilutions, streak...
1.1K

