Featured Research

from universities, journals, and other organizations

New harvesting approach boosts energy output from bacteria

Date:
April 25, 2012
Source:
University of Colorado Denver
Summary:
A novel energy system increases the amount of energy harvested from microbial fuel cells by more than 70 times.

MFCs are emerging as a way to use bacteria to directly harvest electricity from biodegradable materials, such as wastewater or marine sediments.
Credit: Image courtesy of University of Colorado Denver

A team of scientists from University of Colorado Denver has developed a novel energy system that increases the amount of energy harvested from microbial fuel cells (MFCs) by more than 70 times. The new approach also greatly improves energy efficiency. MFCs are emerging as a way to use bacteria to directly harvest electricity from biodegradable materials, such as wastewater or marine sediments

The energy from a single MFC reactor is usually too low to be used in the real world. But CU Denver engineers developed a harvesting system to allow active extractions of electrons from bacteria.

"This process changes the way we think about MFC energy," said Zhiyong (Jason) Ren, PhD, assistant professor of civil engineering in CU Denver's College of Engineering and Applied Science. "This may be a game changer for waste treatment or remote sensing because we've proven we can harvest energy as well as generate savings."

Data collected shows the system increased energy output by 76 times and improved energy efficiency by 21 times compared to a commonly used charge pump.

"The energy output from an MFC reactor is difficult to use directly," said Jae-Do Park, PhD, assistant professor of electrical engineering at CU Denver, who developed the harvesting scheme and prototype system. "That is why the role of the control system is so important. Our prototype has shown great progress toward harvesting energy."


Story Source:

The above story is based on materials provided by University of Colorado Denver. Note: Materials may be edited for content and length.


Journal Reference:

  1. Heming Wang, Jae-Do Park, Zhiyong Ren. Active Energy Harvesting from Microbial Fuel Cells at the Maximum Power Point without Using Resistors. Environmental Science & Technology, 2012; 120417074157000 DOI: 10.1021/es300313d

Cite This Page:

University of Colorado Denver. "New harvesting approach boosts energy output from bacteria." ScienceDaily. ScienceDaily, 25 April 2012. <www.sciencedaily.com/releases/2012/04/120425143638.htm>.
University of Colorado Denver. (2012, April 25). New harvesting approach boosts energy output from bacteria. ScienceDaily. Retrieved April 20, 2014 from www.sciencedaily.com/releases/2012/04/120425143638.htm
University of Colorado Denver. "New harvesting approach boosts energy output from bacteria." ScienceDaily. www.sciencedaily.com/releases/2012/04/120425143638.htm (accessed April 20, 2014).

Share This



More Earth & Climate News

Sunday, April 20, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Drought Concerns May Hurt Lake Tourism

Drought Concerns May Hurt Lake Tourism

AP (Apr. 18, 2014) Operators of recreational businesses on western reservoirs worry that ongoing drought concerns will keep boaters and other visitors from flocking to the popular summer attractions. (April 18) Video provided by AP
Powered by NewsLook.com
Man Claims He Found Loch Ness Monster With... Apple Maps?

Man Claims He Found Loch Ness Monster With... Apple Maps?

Newsy (Apr. 18, 2014) Andy Dixon showed the Daily Mail a screenshot of what he believes to be the mythical beast swimming just below the lake's surface. Video provided by Newsy
Powered by NewsLook.com
First Ever 'Female Penis' Discovered In Animal Kingdom

First Ever 'Female Penis' Discovered In Animal Kingdom

Newsy (Apr. 18, 2014) Not only are these newly discovered bugs' sex organs reversed, but they also mate for up to 70 hours. Video provided by Newsy
Powered by NewsLook.com
Ark. Man Finds 6-Carat Diamond At State Park

Ark. Man Finds 6-Carat Diamond At State Park

Newsy (Apr. 18, 2014) An Arkansas man has found a nearly 6.2-carat diamond, which he dubbed "The Limitless Diamond," at the Crater of Diamonds State Park. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins