Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Generating biogas in composting plants


Pre-pressing organic waste and feeding liquid to bacteria

Composting plants can do more than just convert the content of organic waste containers into nutrient-rich soil. If the facilities are supplemented with an additional biogas stage, energy can also be generated there. To achieve this, the organic waste is pre-pressed and the liquid generated is digested in digesters.

The new process is integrated within an existing composting facility. The digestion takes place in four digesters connected in series.

© Sutco Recyclingtechnik GmbH

The BINE-Projektinfo brochure “Organic waste: combining compost and biogas” (17/2014) presents this process for generating biogas along with the initial practical experiences. The developers have paid particular attention to achieving an economical process that is not susceptible to faults.

The new method produces not just compost but also biogas. The organic liquid separated from the organic waste during pressing provides the nutrient that is fed to bacteria in the newly developed bio-film digesters. The biogas generated in the process can be converted into electricity in a CHP plant or fed into the natural gas grid. The method has proved its robustness in practical testing.

The squeezed organic waste is then passed through the usual composting processes and at the end produces compost of an almost unchanged quality. Particularly because of the mechanical ventilation systems, composting plants were previously only energy consumers.

The addition of a biogas stage enables the capacity of existing composting plants to be increased by 10 to 15% with the same energy requirement and without expanding.

The method was developed by the Sutco Recyclingtechnik company in collaboration with the University of Duisburg-Essen and the Entsorgungs-Gesellschaft Westmünsterland (EGW) waste disposal company. The practical tests took place at its composting plant in Gescher, Germany.

For further informations about the BINE-Projektinfo brochure “Organic waste: combining compost and biogas” (17/2014) follow this link:

Press contact
Uwe Milles

About BINE Information Service

Energy research for practical applications

The BINE Information Service reports on energy research topics, such as new materials, systems and components, as well as innovative concepts and methods. The knowledge gained is incorporated into the implementation of new technologies in practice, because first-rate information provides a basis for pioneering decisions, whether in the planning of energy-optimised buildings, increasing the efficiency of industrial processes, or integrating renewable energy sources into existing systems.

About FIZ Karlsruhe

FIZ Karlsruhe – Leibniz Institute for Information Infrastructure is a not-for-profit organization with the public mission to make sci-tech information from all over the world publicly available and to provide related services in order to support the national and international transfer of knowledge and the promotion of innovation.
Our business areas:
• STN International – the world’s leading online service for research and patent information in science and technology
• KnowEsis – innovative eScience solutions to support the process of research in all its stages, and throughout all scientific disciplines
• Databases and Information Services – Databases and science portals in mathematics, computer science, crystallography, chemistry, and energy technology
FIZ Karlsruhe is a member of the Leibniz Association (WGL) which consists of 87 German research and infrastructure institutions.

Weitere Informationen: - BINE Informationsdienst english

Rüdiger Mack | idw - Informationsdienst Wissenschaft

More articles from Life Sciences:

nachricht Biologists unravel another mystery of what makes DNA go 'loopy'
16.03.2018 | Emory Health Sciences

nachricht Scientists map the portal to the cell's nucleus
16.03.2018 | Rockefeller University

All articles from Life Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Locomotion control with photopigments

Researchers from Göttingen University discover additional function of opsins

Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...

Im Focus: Surveying the Arctic: Tracking down carbon particles

Researchers embark on aerial campaign over Northeast Greenland

On 15 March, the AWI research aeroplane Polar 5 will depart for Greenland. Concentrating on the furthest northeast region of the island, an international team...

Im Focus: Unique Insights into the Antarctic Ice Shelf System

Data collected on ocean-ice interactions in the little-researched regions of the far south

The world’s second-largest ice shelf was the destination for a Polarstern expedition that ended in Punta Arenas, Chile on 14th March 2018. Oceanographers from...

Im Focus: ILA 2018: Laser alternative to hexavalent chromium coating

At the 2018 ILA Berlin Air Show from April 25–29, the Fraunhofer Institute for Laser Technology ILT is showcasing extreme high-speed Laser Material Deposition (EHLA): A video documents how for metal components that are highly loaded, EHLA has already proved itself as an alternative to hard chrome plating, which is now allowed only under special conditions.

When the EU restricted the use of hexavalent chromium compounds to special applications requiring authorization, the move prompted a rethink in the surface...

Im Focus: Radar for navigation support from autonomous flying drones

At the ILA Berlin, hall 4, booth 202, Fraunhofer FHR will present two radar sensors for navigation support of drones. The sensors are valuable components in the implementation of autonomous flying drones: they function as obstacle detectors to prevent collisions. Radar sensors also operate reliably in restricted visibility, e.g. in foggy or dusty conditions. Due to their ability to measure distances with high precision, the radar sensors can also be used as altimeters when other sources of information such as barometers or GPS are not available or cannot operate optimally.

Drones play an increasingly important role in the area of logistics and services. Well-known logistic companies place great hope in these compact, aerial...

All Focus news of the innovation-report >>>



Industry & Economy
Event News

Ultrafast Wireless and Chip Design at the DATE Conference in Dresden

16.03.2018 | Event News

International Tinnitus Conference of the Tinnitus Research Initiative in Regensburg

13.03.2018 | Event News

International Virtual Reality Conference “IEEE VR 2018” comes to Reutlingen, Germany

08.03.2018 | Event News

Latest News

Wandering greenhouse gas

16.03.2018 | Earth Sciences

'Frequency combs' ID chemicals within the mid-infrared spectral region

16.03.2018 | Physics and Astronomy

Biologists unravel another mystery of what makes DNA go 'loopy'

16.03.2018 | Life Sciences

Science & Research
Overview of more VideoLinks >>>