New research shows that sewage contains a source of energy that can be harvested by using hungry bacteria.
Domestic sewage contains various organic substances, mainly from toilets and kitchens. These are harmful to the environment, but also contain energy. Researchers from Ghent University discovered how to efficiently extract this energy from the wastewater.
Researcher dr. Francis Meerburg (Center for Microbial Ecology and Technology): “The levels of organic matter in sewage are too low to be directly recovered. We investigated how we can use bacteria to capture this material. Our approach is unique because we have developed a high-rate variation of the so-called contact-stabilization process.”
Professor Nico Boon: “We periodically starve the bacteria, in a kind of ‘fasting regimen’. Afterwards, wastewater is briefly brought into contact with the starved bacteria which are gluttonous and gobble up the organic matter without ingesting all of it. This enables us to harvest the undigested materials for the production of energy and high-quality products. We starve the rest of the bacteria, so that they can purify fresh sewage again. ”
Energy neutral wastewater treatment
By using the contact-stabilization process, up to 55% of the organic matter could be recovered from sewage. This is a huge step forward, because the existing processes cannot recover more than 20 to 30%. The researchers calculated that this amount can provide sufficient amounts of energy to completely treat sewage without the need for external electricity.
“This is an important step in the direction of wastewater treatment that is energy neutral, or even produces energy,” Professor Siegfried Vlaeminck said.
Learn more: Binge-eating bacteria extract energy from sewage
The Latest on: Microbial energy
[google_news title=”” keyword=”microbial energy” num_posts=”10″ blurb_length=”0″ show_thumb=”left”]
via Google News
The Latest on: Microbial energy
- Unveiling Earth’s Hidden World: Scientists Map Vast Subsurface Microbial Universeon December 1, 2023 at 9:40 pm
A former goldmine serves as a gateway to explore microbial life deep within the Earth's crust. If you totaled the mass of all microbes dwelling beneath the Earth's surface, their combined biomass ...
- Researchers Map the Microbes Living Deep Beneath the Earth’s Surfaceon November 29, 2023 at 1:49 am
Researchers have characterized nearly 600 microbial genomes, some of which are new to science, from a former goldmine.
- Microbial magic: ChampionX & GH2 transforming hydrogen fuelon November 28, 2023 at 10:38 pm
ChampionX and GH2 collaborate to produce hydrogen using microbes in oil reservoirs, innovating in sustainable energy and technology.. Microbial magic: ChampionX & GH2 transforming hydrogen fuel.
- Minimalist or maximalist? The life of a microbe a mile undergroundon November 28, 2023 at 7:17 pm
Researchers characterize nearly 600 microbial genomes collected from goldmine. The study illuminates 'microbial dark matter' residing below the surface. Microbes divide into two groups: minimalists ...
- Definition of 'microbial'on November 26, 2023 at 4:01 pm
Microbial means relating to or caused by microbes. ...the question of whether microbial life exists, or once existed, on Mars. Microbial infections now kill 17m people a year.
- Anti-microbial awareness week: Experts caution against self-medicationon November 23, 2023 at 12:56 am
In an event to mark World Anti-microbial Awareness Week here on Wednesday, health experts here expressed concerns over the rising tendency to self-medication, stating that it could prove dangerous ...
- AI Editor Unlocks Microbial Potential for Renewable Chemicals and Fuelson November 15, 2023 at 1:38 am
In a groundbreaking move toward sustainable bioengineering, researchers at Oak Ridge National Laboratory (ORNL) have harnessed the power of artificial intelligence to develop an AI editor to ...
- Microbial Electrochemical Technologies: Fundamentals and Applications, 2 Volumeson November 5, 2023 at 6:04 am
Rao Y. Surampalli, PhD, is President and CEO of the Global Institute for Energy, Environment, and Sustainability. He previously spent 30 years with the United States Environmental Protection Agency ...
- The Complex Microbial World of Pit Latrineson October 31, 2023 at 5:00 pm
A new study sheds light on the complex microbial ecosystems found in pit latrines, which are used by billions of people around the world. The findings are relevant for efforts to both improve public ...
via Bing News