Bioeconomy

Article - 01/12/2014

wusoa GmbH: What shall we do with manure? Liquid manure for decentralized small-scale biogas plants.

Biogas has become an alternative and sustainable energy resource. In 2013, the 7,850 biogas plants in Germany – including 858 in Baden-Württemberg – produced enough biogas to cover around seven percent of Germany’s total electricity needs. Martin Falger, managing director of wusoa GmbH in Stuttgart, explained in an interview with Sanja Fessl (BIOPRO) why he believes that small-scale biogas plants have a promising future. They expand the biogas…

Perspectives of methane as energy source - 18/06/2020

New technologies for using biogas as a balancing energy

The microorganisms in biogas plants do a great job biologically converting CO₂ and hydrogen, which are primary fermentation products, into methane. Biomethane has a great future as an energy source. Scientists at the University of Hohenheim are investigating new ways to produce and use biomethane.

Article - 14/05/2012

Biogas and sustainability

The German Renewable Energy Sources Act (EEG) has led to a considerable increase in the use of biogas in Germany. However, increasing biogas production must make ecological sense and not generate conflict with the sustainability objectives of environmental conservation schemes. There must therefore be a careful consideration of the overall conditions. An analysis of the ecological impact of the generation and use of biogas in Germany taking into…

Article - 13/09/2017

Flexible biogas plant operation – new concepts for stabilising bioenergy provision

The lack of flexibility with regard to peak demand for electricity – both for consumers and producers – is a well-known problem as far as the production of electricity from renewable resources is concerned. Biogas plants present a particular challenge due to the complex and relatively slow microbial processes involved. A research project called FLEXIZUCKER at the Universities of Ulm and Göttingen aims to make biogas production more flexible and…

Article - 14/05/2012

Making money with waste – biogas

At a time when energy crops are competing with food crops for agricultural land, the company n-bio GmbH is doing something positive by turning what is considered waste into bioenergy. This not only reduces waste disposal costs, but also protects the environment. The technically highly sophisticated waste fermentation plants manufactured by n-bio GmbH automatically remove packaging residues and are also able to cope with pralines. The company’s…

Article - 18/06/2012

Bioenergy villages: biogas sets the tone

In 2011 Baden-Württemberg was home to around 37 bioenergy villages and several others are under construction or in the planning phase. Bioenergy villages produce all of their electricity and energy for heating locally from renewable resources such as maize and wood electricity is mainly generated from biogas.

Press release - 23/08/2010

University of Stuttgart participates in EU project: Parameters that help advance biogas technologies in Europe

There is a binding EU-wide target to source 20 per cent of each country’s energy needs, as stipulated in the Kyoto Protocol, from renewable sources by 2020. The production of biogas is one promising key technology that could lead to this target being reached. But which technologies, measures and conditions are needed to advance biogas technology in Europe? The EU research project SEBE (Sustainable and Innovative European Biogas Environment) is…

Article - 29/10/2018

The International Biogas and Bioenergy Competence Centre (IBBK) and its role in Baden-Württemberg’s bioeconomy

The number of biogas plants in Germany has increased almost tenfold since the start of the new millennium1. IBBK Fachgruppe Biogas GmbH, founded in 2000, has helped shape this development through training, consulting services and projects. Since 2015, the company has also been working on behalf of the Baden-Württemberg government to advise operators of existing and planned biogas facilities.

Biogas plants have become a familiar sight in Baden-Württemberg's rural areas. It might therefore be expected that broad experience exists in the comprehensive evaluation of this type of energy generation from renewable resources or organic materials. However, scientists draw a very differentiated picture. It is difficult to make any generalisations, although the analysis of individual facets can provide further help.

Article - 03/11/2014

Modern biogas plant in a picturesque landscape

Biogas plants have become well-known sights throughout Germany and are usually built according to standardised concepts. The biogas plant that is currently being constructed in the village of Zermatt below the Matterhorn presented the GICON Großmann Ingenieur Consult GmbH planners with a particular challenge. The geographical and climatic conditions of the area and seasonal waste variations due to seasonally fluctuating tourist numbers required…

Press release - 25/03/2010

Pure biogas in three steps: University of Hohenheim develops new type of biogas plant

Higher methane level, shorter process times, more flexible products: researchers from the University of Hohenheim are planning to establish a three-tier pilot plant over the next three years that is able to produce all this. In the long term, this will contribute to a reduction in the energy required to produce biogas relative to the energy currently required to produce natural gas and it will also enable biogas to be supplied via existing gas…

Dossier - 14/05/2012

Biogas – a promising source of renewable energy?

In addition to sunlight water and wind biogas is a regenerative source of energy that contributes to saving fossil resources. Germany is home to around 7100 biogas plants including 796 as of 2011 in Baden-Württemberg. In 2010 these facilities produced 11 per cent of the electricity generated from renewables in Germany. Energy-rich methane is the major constituent of biogas and is produced when organic compounds are broken down by bacteria in the…

Article - 16/05/2012

Ecologists can drive forward biogas research too

The biologist Prof. Dr. Marian Kazda from Ulm has worked on biogas research for many years. However, he occupies a particular niche in that he approaches the topic from the point of view of a problem-oriented ecologist. The 55-year-old is head of the Institute of Systematic Botany and Ecology at the University of Ulm and his specific field of research is plant ecology. It was his work on wetlands that first got him interested in biogas research.

Biogas experts at the University of Hohenheim believe that up to 50 per cent more energy can be achieved per hectare of cultivated energy crops. The researchers are hoping that Germanys first biogas research plant will provide them with new insights.

Article - 14/05/2012

Can green cuttings be turned into biogas?

Grass flowers and small bushes are constant features along roadsides they are mowed at regular intervals and either dumped left where they are or less frequently composted. Cuttings like these could contribute to solving the global energy problem and even generate money. However communities that are aiming to turn green waste from roadsides riversides or sports grounds into biogas and hence a renewable source of energy are confronted with…

Article - 13/02/2018

Pleasant aromas from biogas

Butyric acid is an important source of fruity aromas. It accumulates as an intermediary product during biogas production, from where it can be siphoned off and used for producing flavours. A new collaborative project aims to explore the technological and bioeconomic potential of extracting butyric acid from biogas plants.

The Hallertau is Germany's largest hop-growing region. During harvesting, hop bine chaff is left over, which is converted into environmentally friendly bio natural gas on site in a biogas plant. But that is not the end of the utilization chain for this fiber plant. Researchers at the German Institutes of Textile and Fiber Research Denkendorf (DITF) have used the plant-containing biogas digestate to produce a composite material that can be…

Press release - 14/02/2012

Fuel from market waste

Mushy tomatoes, brown bananas and overripe cherries – to date, waste from wholesale markets has ended up on the compost heap at best. In future it will be put to better use: Researchers at the Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB in Stuttgart have developed a new facility that ferments this waste to make methane, which can be used to power vehicles.

From field to socket - 03/02/2021

Energy park & Donau-Silphie: a symbiosis that benefits nature

Biogas plants that produce non-fossil fuels are very much in vogue at the moment. In the Swabian hamlet of Hahnennest, four family farms have joined forces to form an energy park and operate a local biogas plant, covering everything from substrate production to the sale of energy.

Article - 14/01/2013

Novel bioreactor and sponges that thin out light

Microalgae are veritable treasure troves. The cosmetics food and chemical industries already use algal metabolic products for various applications. In future the green unicellular organisms might also be grown on a large scale in photobioreactors installed on fallow land where they will be used as regenerative sources of energy. Mark Fresewinkel from the Karlsruhe Institute of Technology KIT is involved in a cooperative project aimed at…

Article - 27/03/2019

Residues from biogas plants as feed for algae

Algae are frugal organisms. They require only light, water, minerals and carbon dioxide to be able to produce biomass. These properties will now be exploited economically in a two-year research project. Dr. Stefan Sebök from the University of Hamburg plans to study the holistic utilisation of degradation products of a biogas plant in Wallerstädten by linking them to land-based algae cultivation.

Dossier - 30/09/2014

Industrial biotechnology: a challenging change to the raw material base

Biogenic raw materials have never been as popular as they are now. Efforts to tap renewable carbon resources are already underway, despite the fact that new oil drilling technologies are boosting fossil fuel stockpiles. In the medium term, industry will have to expand its raw materials base, and in the long term it may have to renew it completely. Industrial biotechnology is one of the key technologies in the transition from an economy based on…

Article - 17/08/2009

The source of biomass – young people experience this agricultural energy source

A biomass action day was recently organised at the Unterer Lindenhof experimental station in order to show schoolchildren a number of features of different agricultural products that fuel that is made from rape seed is capable of taking them from Egypt to South Africa that the use of wood for heating houses is very ecological and that various plant oils can taste very differently. This action day was made possible thanks to the Hohenheim…

Article - 08/05/2019

Environmentally friendly alternative to fossil natural gas: methane from biomass

In cooperation with the research unit of the German Technical and Scientific Association for Gas and Water (DVGW), KIT researchers have built a pilot plant in which biogas produced by fermenting residual organic materials can be upgraded to synthetic methane (synthetic SNG). Biobased methane is not only a sustainable energy source for the heating and transport sectors, but also opens up new opportunities for temporary storage of renewable…

Press release - 21/01/2010

Driving cars with biogas produced from biological waste

The ETAMAX research project brings together partners from research, the energy sector and industry and is aimed at using a combined, modular process to produce biogas from low-lignocellulosic waste such as supermarket waste and micro-algal biomass, at the same time as closing all substance cycles. The regenerative biomethane will be used to fuel a small fleet of gas-driven vehicles.