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 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:
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.
http://www.bine.info/en - BINE Informationsdienst english
Rüdiger Mack | idw - Informationsdienst Wissenschaft
Biologists unravel another mystery of what makes DNA go 'loopy'
16.03.2018 | Emory Health Sciences
Scientists map the portal to the cell's nucleus
16.03.2018 | Rockefeller University
Animal photoreceptors capture light with photopigments. Researchers from the University of Göttingen have now discovered that these photopigments fulfill an...
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...
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...
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...
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...
16.03.2018 | Event News
13.03.2018 | Event News
08.03.2018 | Event News
16.03.2018 | Earth Sciences
16.03.2018 | Physics and Astronomy
16.03.2018 | Life Sciences