Major Advance in Generating Electricity From Wastewater

January 24, 2013 | By | 2 Replies More

Aaron Jackson, Guest Writer
Waking Times

Engineers at Oregon State University have made a breakthrough in the performance of microbial fuel cells that can produce electricity directly from wastewater, opening the door to a future in which waste treatment plants not only will power themselves, but will sell excess electricity.

The new technology developed at OSU uses new concepts — reduced anode-cathode spacing, evolved microbes and new separator materials — and can produce more than two kilowatts per cubic meter of liquid reactor volume — 10 to 50 more times the electrical per unit volume than most other approaches using microbial fuel cells, and 100 times more electricity than some.

This technology cleans sewage by a very different approach than the aerobic bacteria used in the past. Bacteria oxidize the organic matter and, in the process, produce electrons that run from the anode to the cathode within the fuel cell, creating an electrical current.

Almost any type of organic waste material can be used to produce electricity — not only wastewater, but also grass straw, animal waste, and byproducts from such operations as the wine, beer or dairy industries.

The researchers say this could eventually change the way that wastewater is treated all over the world, replacing the widely used “activated sludge” process that has been in use for almost a century. The new approach would produce significant amounts of electricity while effectively cleaning the wastewater, they suggest.

“If this technology works on a commercial scale, the way we believe it will, the treatment of wastewater could be a huge energy producer, not a huge energy cost,” said Hong Liu, an associate professor in the OSU Department of Biological and Ecological Engineering. “This could have an impact around the world, save a great deal of money, provide better water treatment and promote energy sustainability.”

Experts estimate that about 3 percent of the electrical energy consumed in the United States and other developed countries is used to treat wastewater, and a majority of that electricity is produced by fossil fuels.

The system also works better than an alternative approach to creating electricity from wastewater that is based on anaerobic digestion that produces methane. It treats the wastewater more effectively, and doesn’t have any of the environmental drawbacks of that technology, such as production of unwanted hydrogen sulfide or possible release of methane, a potent greenhouse gas, the researchers believe.

The OSU system has now been proven at a substantial scale in the laboratory, Liu said, and the next step would be a pilot study. A good candidate, she said, might initially be a food processing plant, which is a contained system that produces a steady supply of certain types of wastewater that would provide significant amounts of electricity.

Once advances are made to reduce high initial costs, researchers estimate that the capital construction costs of this new technology should be comparable to that of the activated sludge systems now in widespread use today — and even less expensive when future sales of excess electricity are factored in.

The approach may also have special value in developing nations, where access to electricity is limited and sewage treatment at remote sites is difficult or impossible as a result.

The ability of microbes to produce electricity has been known for decades, but only recently have technological advances made their production of electricity high enough to be of commercial use. OSU researchers reported several years ago on the promise of this technology, but at that time the systems in use produced far less electrical power.  Continued research should also find even more optimal use of necessary microbes, reduced material costs and improved function of the technology at commercial scales, OSU scientists said.

REFERENCES:

About the Author

Aaron Jackson is a writer for the excellent site, Exposing The TruthPlease visit them on Facebook, here.

This article is offered under Creative Commons license. It’s okay to republish it anywhere as long as attribution bio is included and all links remain intact.

~~ Help Waking Times to raise the vibration by sharing this article with the buttons below…

Tags: , , , , , ,

Category: All Original Articles, Business, Community, Contributors, Earth, Energy, Environment, Guest Writers, Science, Society, Technology, Time & Space, Uncategorized

Comments (2)

Trackback URL | Comments RSS Feed

  1. dimitri says:

    Boo! This is going to cost everybody big time. The ad at the end of the article suggests that Tesla’s electricity is free. Why not demand that system right now?

  2. noem says:

    Somebody put here link with “Tesla Secret”, which is a scam don’t buy that crap.

Leave a Reply

Must Watch Videos

Open Source Plans for Modern Tesla Free Energy Generator Released to Public

Open Source Plans for Modern Tesla Free Energy Generator Released to Public













Terence Newton, Staff Writer
Waking Times

In a world of problems and solutions, few ideas spur both immediate hope and skepticism as the idea of free energy, and, on the brink of ecological disaster, nothing may be of greater importance to the human race.

The story of Nikola More

April 14, 2014 | By | 19 Replies More
Neuroscientist Exposes Dangers of Electromagnetic Fields

Neuroscientist Exposes Dangers of Electromagnetic Fields













Kevin Samson, Guest
Waking Times

Neuroscience has come under scrutiny for its involvement in an array of mind control initiatives and other ethically questionable research. But at least one neuroscientist from Sweden has gone on record to caution against the increasing dangers of Electromagnetic Fields (EMF) on human beings … More

April 14, 2014 | By | Reply More
On the Eve of Construction

On the Eve of Construction













Zen Gardner, Guest
Waking Times

I love the sound of construction. I always have. Not the industrial sound from the kind of massive, offensive structures made with other-worldly looking machines, but the intentional, gentle kind. Small structures going up, improvements on homes, road repairs, even tending to gardens whether … More

April 13, 2014 | By | 2 Replies More
Are You Inadvertently Investing in Monsanto’s Toxic Legacy?

Are You Inadvertently Investing in Monsanto’s Toxic Legacy?













Brandon Baker, Eco Watch
Waking Times

Monsanto didn’t achieve $11.8 billion in sales and 404 facilities in 66 countries all on its own.

The company is valued at $60 billion in the marketplace with 525 million shares outstanding, but the three largest mutual fund shareholders, Vanguard, Fidelity and State Street, … More

April 10, 2014 | By | Reply More
7 Ways Our Children Are Being Brainwashed

7 Ways Our Children Are Being Brainwashed













Gregg Prescott, M.S., In5D Guest
Waking Times

From birth, virtually all of us have been brainwashed through various outlets that encourage materialism, ego, subservience, control and conformity. But where do the origins of mind control begin and what can we do about it?

1. Religion

As children, the brainwashing begins … More

April 9, 2014 | By | 5 Replies More

Activism Works

The Truth About Fluoride Becoming More Widely Known

The Truth About Fluoride Becoming More Widely Known













Dr. Mercola
Waking Times

Fluoride is a poisonous substance added to many municipal water supplies across the US, Canada, and elsewhere without the permission of the residents. Is there a model that communities can follow to remove it from their water supply? The short answer to this question is yesMore

April 1, 2014 | By | 1 Reply More
6 Crimes Against Nature Perpetrated By The Food Industry

6 Crimes Against Nature Perpetrated By The Food Industry













Martha Rosenberg, AlterNet
Waking Times

While many procedures on factory farms are cruel, breeding animals into mutants and violating mother/offspring bonds are truly crimes against nature.

The horrors of factory farming are multifold. Treating animals like heads of lettuce—”forget it’s an animal” says one farming magazine—has created institutionalized ruthlessness toward … More

March 28, 2014 | By | 5 Replies More
Our Respective Journeys Into the Valley of Reason

Our Respective Journeys Into the Valley of Reason













Michael T. Winter, Contributor
Waking Times

The Internet awakening has given birth to a worldwide multitude of people that are disengaging from the programmed paradigm created for us, and awakening to the reality of the dangers we face. The web has supplied a platform for writers to take a crack … More

March 26, 2014 | By | 1 Reply More
13 Ways Foodies Are Changing The Food Industry

13 Ways Foodies Are Changing The Food Industry













Heather Callaghan & Jeffrey Green, Guests
Waking Times

A major shift in the consciousness of food consumers is forcing the industry into a competitive race to become more natural.  The market is telling food producers that they no longer want so-called factory food because of its many harmful effects on … More

March 25, 2014 | By | 1 Reply More
American Agriculture May Eradicate the Monarch Butterfly Unless Swift Action Is Taken

American Agriculture May Eradicate the Monarch Butterfly Unless Swift Action Is Taken













Dr. Mercola
Waking Times

You may be aware that bees are dying in large numbers across the globe, courtesy of the ever-increasing presence of toxins in our environment. But did you know that the monarch butterfly is also becoming endangered, and for the same reason?

As reported by the New More

March 22, 2014 | By | Reply More