Social Media Sidebar

Announcement

Please sign up, comment on articles and bring your friends!

Current poll

PlanetTech is asking:

What do you think about our new web site?

Love it, indeed
Really good solution
Same as old one
The old one was better
This is a new option

Quote of the day

People say we're running out of energy. That's only true if we stick with these old 19th century technologies. We are awash in energy from sunlight.

 

Ray Kurzweil

 

Giving waste water the power to clean itself

RATE THIS! +1
Posted in Science on 2nd Mar, 2012 07:21 PM by APM

A technique that combines two novel forms of renewable energy — one relying on bacteria and the other on salt water — generates more electricity than either one alone and cleans waste water at the same time.

 

The Pennsylvania State University researchers show that this configuration can achieve maximum power densities of 3 watts per meter squared, much higher than either technology can achieve on its own.

 

One method for converting this energy to a useable form is to use microbial fuel cells (MFC). These generate electricity by using cultures of microorganisms to break down and oxidize organic matter, a process that releases electrons that migrate towards a positive electrode.

 

To boost the power density of the MFC system, the researchers added a second process, called reverse electrodialysis (RED), in which the salinity gradient between fresh water and sea water is harnessed to generate electricity.

 

The researchers’ system, called a microbial reverse-electrodialysis cell (MRC), sandwiches a reverse electrodialysis (RED) stack made up of only a few pairs of membranes between the two chambers of an MFC, where the proton-exchange membrane would normally be.
 



Read original article » Back to category

Comments

Author: Guest
Posted: 2013-11-22
+0
Dec10 Have you given any kind of consideration at all with trnntlasiag your web site in to German? I know a few of translaters right here that might help you do it for no cost if you wanna make contact with me personally. Reply


 

Recent headlines

  • Posted in Medicine on 2017-09-24 12:24:41
    Effective help is available for migraine sufferers..read more
    Posted in Business on 2017-09-24 12:20:40
    AR startup Mira bags $1 million for Google Cardboard-like.....read more
    Posted in Medicine on 2017-09-24 12:14:44
    Alarm as 'super malaria' spreads in South East Asia..read more
    Posted in Science on 2017-09-23 08:31:24
    Fly me to the Moon: For some, lunar village takes shape..read more
    Posted in Software on 2017-09-23 08:22:48
    One year later, Microsoft AI and Research grows to 8k.....read more
Posted in Business on 2013-10-10 01:33
China is working towards a manned lunar mission in about.....read more
Posted in Business on 2013-10-20 07:17
Spacex says China is their main competitor for commercial.....read more
Posted in Software on 2013-10-20 06:43
Pirate Bay Browser Clocks 1,000,000 Downloads..read more
Posted in Medicine on 2013-10-10 02:10
Google reportedly investing hundreds of millions into new.....read more
Posted in Medicine on 2013-10-14 03:13
Endothelial Cells Can Repair and Regenerate Organs,.....read more
Posted in Science on 01.01.2010
Spacex says China is their main competitor for commercial.....read more
Posted in Science on 01.01.2010
Staring at Your Phone Could Be Making You Short Sighted..read more
Posted in Science on 01.01.2010
Oculus Rift virtual reality headset coming to mobile, but.....read more
Posted in Science on 01.01.2010
China is working towards a manned lunar mission in about.....read more
Posted in Science on 01.01.2010
Delivering drugs via nanoparticles to target mitochondria..read more

Recent Blog Posts

  • Posted by AlexMuller
    Scientists probe Neptune's depths to reveal secrets of icy.....read more
    Posted by AlexMuller
    New terahertz imaging approach could speed up skin cancer.....read more
    Posted by AlexMuller
    Rebutting the claim that antidepressants do not work..read more
    Posted by AlexMuller
    Artificial neural networks decode brain activity during.....read more
    Posted by AlexMuller
    Four Earth-sized planets detected orbiting the nearest.....read more

Login to your Account

Login to your PlanetTech Account here

Username:
Password:
Remember me
or

Create a New Account

You just need username and password

The following errors occured:
Username:
Email:
Password:
Verify password:
Remember me