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
via Google News
The Latest on: Microbial energy
- Guardian Asset Management's Response to COVID-19on May 12, 2020 at 5:38 am
Guardian Asset Management has partnered with The Germ Killers, a division of Glo-Chem International (GCI), headquartered in Philadelphia, to offer a two-part application system that offers enhanced ...
- A comprehensive study to the assessment of Arrhenius activation energy and binary chemical reaction in swirling flowon May 12, 2020 at 2:30 am
In this connection, it is focus to investigate steady three dimensional rotating flow with heat and mass transfer incorporating gyrotactic microorganisms. Buongiorno’s nanofluid formulation is ...
- Europe Anti-Microbial Coatings Market Size, 2020 Rising Impact of COVID-19, Overview By Growth, Demand And Future Scope to 2025on May 11, 2020 at 2:31 am
Changsha, China, HongChun Research Study on "Europe Anti-Microbial Coatings Market 2020" Highlights on Different Features of the Market with a Specific Spotlight type, application, competitive ...
- Orion Energy Systems: Anti-Microbial LED Lighting Supporting Positive Momentumon May 10, 2020 at 2:03 am
Orion Energy Systems is a U.S. based manufacturer of LED lighting and also offers customized project design solutions. The company has presented strong growth a ...
- We're striving to make buildings — and their microbiomes — healthy placeson May 8, 2020 at 4:18 am
How can societies safeguard buildings or homes from a viral pathogen during an epidemic? What would it take to redesign public and institutional buildings so they could help "flatten the curve," ...
- Viruses Are Likely To Be Ubiquitous Throughout Cosmoson May 8, 2020 at 2:41 am
Viruses are likely to be widespread across the cosmos, says expert. The good news is that most if not all are unlikely to pose threats to space-faring humans.
- Body-size Scaling is Related to Gut Microbial Diversity, Metabolism and Dietary Niche of Arboreal Folivorous Flying Squirrelson May 8, 2020 at 2:09 am
Thermal homeostasis of mammals is constrained by body-size scaling. Consequently, small mammals require considerable energy to maintain a high mass-specific metabolic rate (MSMR) ...
- Microbial–host molecular exchange and its functional consequences in early mammalian lifeon May 7, 2020 at 1:10 pm
Molecules from symbiotic microorganisms pervasively infiltrate almost every organ system of a mammalian host, marking the initiation of microbial–host mutualism in utero, long before the newborn ...
- Minimum energy requirements for microbial communities to live predictedon May 6, 2020 at 8:03 am
A microbial community is a complex, dynamic system composed of hundreds of species and their interactions, they are found in oceans, soil, animal guts and plant roots. Each system feeds the Earth's ...
via Bing News