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
OHIO professor Hla develops robust molecular propeller for unidirectional rotations
22.08.2019 | Ohio University
In cystic fibrosis, lungs feed deadly bacteria
22.08.2019 | Columbia University Irving Medical Center
Theoretical physicists at Trinity College Dublin are among an international collaboration that has built the world's smallest engine - which, as a single calcium ion, is approximately ten billion times smaller than a car engine.
Work performed by Professor John Goold's QuSys group in Trinity's School of Physics describes the science behind this tiny motor.
Together with the University of Innsbruck, the ETH Zurich and Interactive Fully Electrical Vehicles SRL, Infineon Austria is researching specific questions on the commercial use of quantum computers. With new innovations in design and manufacturing, the partners from universities and industry want to develop affordable components for quantum computers.
Ion traps have proven to be a very successful technology for the control and manipulation of quantum particles. Today, they form the heart of the first...
Experimental progress towards engineering quantized gauge fields coupled to ultracold matter promises a versatile platform to tackle problems ranging from condensed-matter to high-energy physics
The interaction between fields and matter is a recurring theme throughout physics. Classical cases such as the trajectories of one celestial body moving in the...
Soft robots have a distinct advantage over their rigid forebears: they can adapt to complex environments, handle fragile objects and interact safely with humans. Made from silicone, rubber or other stretchable polymers, they are ideal for use in rehabilitation exoskeletons and robotic clothing. Soft bio-inspired robots could one day be deployed to explore remote or dangerous environments.
Most soft robots are actuated by rigid, noisy pumps that push fluids into the machines' moving parts. Because they are connected to these bulky pumps by tubes,...
Researchers at TU Graz are working together with European partners on new possibilities of measuring vehicle emissions.
Today, air pollution is one of the biggest challenges facing European cities. As part of the Horizon 2020 research project CARES (City Air Remote Emission...
16.08.2019 | Event News
14.08.2019 | Event News
12.08.2019 | Event News
22.08.2019 | Life Sciences
22.08.2019 | Physics and Astronomy
22.08.2019 | Physics and Astronomy