Bioeconomy

Raw materials from wastewater - 21/12/2022

Wastewater treatment plants as biorefineries: the RoKKa project

RoKKa, a joint project coordinated by the Fraunhofer IGB, is testing methods for recovering raw materials such as phosphorus and nitrogen compounds to produce fertiliser from municipal and industrial wastewater in a climate-neutral way. These new methods are being investigated under real conditions at wastewater treatment plants in the Ulm area with a view to developing them into sustainable biorefineries.

A tasty dish for chickens: Researchers from the University of Hohenheim in Stuttgart were able to feed the animals the first 50 kilos of protein extract that were obtained from pasture. Yet the plants found in fields and meadows offer much more than a new source of protein for pigs and poultry: They could also constitute an alternative to soy for human nutrition. They also form a basis for organic-based plastics and paper, energy, and…

Büsnau biorefinery - 05/10/2022

KoalAplan: municipal wastewater as a source of recyclable materials

Our wastewater not only contains dirt and excretions, but is also rich in carbon, nitrogen and phosphorus, which can be recovered. A sewage plant can thus become a source of raw materials. In the KoalAplan project, a new type of biorefinery will be used to convert the carbon recovered from wastewater into sustainable products.

Lentil cultivation in a producers’ association - EIP-AGRI Rhizo-Linse project - 23/05/2022

From cultivation to market – lentils from the Swabian Alb

Complicated cultivation, fluctuating yields and complex cleaning: Leisa – as lentils are called in Swabian – are demanding. So to produce lentils economically, 130 farmers in the Swabian Alb have joined forces and set up the organic producers’ association Alb-Leisa. Their lentil harvests are processed and marketed by a company called Lauteracher Alb-Feld-Früchte.

Lentil cultivation and cleaning on the farm - EIP-AGRI Rhizo-Linse project - 16/03/2022

Lentils return to the Heckengäu region

Lentils are among the oldest crop plants in Central European agriculture and were once a popular food in ancient Egypt, Persia and Mesopotamia. The legume was widespread in Germany until the mid-20th century, but has since disappeared completely from farmers’ fields. Over the past decade, lentils have reappeared as a crop grown locally and are cultivated in harmony with nature.

The Ministry of the Environment, Climate Protection and the Energy Sector is funding the KoalAplan project, which extends the functional scope of a wastewater treatment plant. The project, based in the Stuttgart district of Büsnau, aims at recovering raw materials from wastewater and is therefore making a positive contribution to climate neutrality, as the products obtained replace fossil raw materials and energy-intensive processes.

The Ministry for the Environment, Climate Protection and the Energy Sector is funding the new research project RoKKa which is used to prove the viability of recovering raw materials from wastewater. This adds a crucial function to the scope of a conventional sewage treatment plant. Together with the operators of the sewage treatment plants in Erbach and Neu-Ulm, the project partners demonstrate the positive contribution towards climate protection…

Refuels are renewable fuels that can be produced in different ways. When they are mixed and processed such that they meet the existing fuel standards, they are suited for all types of combustion engines. This is the result of the latest vehicle and fleet tests within the project “reFuels – Rethinking Fuels” at Karlsruhe Institute of Technology (KIT). Compared to fully fossil fuels, refuel mixes allow for a CO2 reduction by 25% at least. Moreover,…

The EU funded research project HyFlexFuel recently succeeded to produce biocrudes via hydrothermal liquefaction (HTL) from a variety of biomasses, including sewage sludge, food waste, manure, wheat straw, corn stover, pine sawdust, miscanthus and microalgae in a pilot-scale continuous HTL plant at Aarhus University (Denmark).

Textiles can be coated with the biopolymer chitosan and thus made water-repellent by binding hydrophobic molecules. The good thing is that this can also replace toxic and petroleum-based substances that are currently used for textile finishing. In the last few years Fraunhofer IGB and partners have developed technology to provide fibers with the desired properties using biotechnological processes and chitosan.

Phosphorus recovery from sewage sludge - 21/10/2020

Bacteria help to recycle phosphorus

Biotechnology for the bioeconomy: in something known as the P-bac process, sulphur bacteria extract phosphorus from sewage sludge ash. Phosphorus is one of the key building blocks of life and an essential nutrient for plant growth. When there is not enough phosphorus in the soil, farmers apply it via organic or mineral fertilisers.

The urgency of the ongoing climate change is increasing. There is no doubt that emissions must be drastically reduced at all levels, but that is not enough. To prevent the worst consequences of climate change, additional carbon sinks, so-called negative emissions, are needed. A recently published whitepaper clearly and scientifically substantiates that biochar is a key technology in this fight against climate change.

The “Rhizo-Lentil" EIP-AGRI project - 20/05/2020

NovoCarbo turns plant waste into biochar

NovoCarbo GmbH produces biochar from plant residues such as wood chips, nutshells and manure. Different feedstocks, and the way these materials are processed, create biochars with different properties. This makes biochar suitable for different uses, including as a soil conditioner, in biogas plants or as bedding for stables and cowsheds. The Rhizo-Linse project is currently investigating whether biochar is also suitable as inoculant carrier for…

The “Rhizo-Lentil" EIP-AGRI project - 03/03/2020

University of Hohenheim wants to improve the conditions for lentil cultivation

Lentils were once considered poor man’s food, but in Germany demand for them has never been greater. And to satisfy this growing demand, more lentils need to be cultivated. This is why the University of Hohenheim is involved in the EIP-AGRI "Rhizo-Linse" project. The aim of the project is to find rhizobia strains that go well with lentil plants to increase yield and improve quality.

EIP-AGRI project coordination - 12/12/2019

nadicom: “Rhizo-Linse” project – excellent small fertiliser factories

Lentil plants, rarely cultivated in Central Europe in the twentieth century, are making a comeback. The "Rhizo-Linse"1 EIP-AGRI project aims to reintroduce old lentil varieties and make them appealing to farmers. A company called nadicom Gesellschaft für angewandte Mikrobiologie mbH is working on the development of an ecological product consisting of nodule bacteria that can improve lentil plant growth.

The European Union's Horizon 2020 project MAGIC has reached a milestone by uploading a beta version of its Decision Support System for farmers and end users, showing marginal land and an overview of industrial crops suitable to be grown on this land.

Dossier - 09/04/2018

Digitisation in agriculture - from precision farming to farming 4.0

Automated steering systems, data-driven targeted application of fertilisers and pesticides, field robots and drones, soil analysis sensors, autonomous driving - digitisation is advancing in agriculture as elsewhere. The question asked by farmers and by society in general is whether the increasing adoption of digital technologies in agriculture is a curse or a blessing.

Article - 25/01/2018

Ö-Klo: recovering valuable materials by composting toilets

The Freiburg-based start-up company Ö-Klo leases composting toilets and is committed to the recovery of human urine and faeces. The young Ö-Klo entrepreneurs believe that reviving natural material cycles of soil, plants, food and excreta is crucial in times when natural resources such as phosphorus are dwindling.

Article - 14/12/2017

75 percent decline in insects in parts of Germany

A recent study on the disappearance of insects is making headlines: it found that the insect biomass has declined by more than 75% in certain areas in Germany that were monitored by the study over a period of 27 years. The authors believe that the dramatic decline in insect biomass is down to industrial agriculture, which is therefore in conflict with certain bioeconomic principles: the sustainable cultivation of biomass and the safeguarding of…

Article - 27/11/2017

Microalgae – resource-saving raw materials for the food and feed sectors

Coal, petrol and natural gas are our energy sources and the basis for the food, pharmaceutical and chemical industries. However, the supply of fossil fuels is gradually running out. The Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB in Stuttgart has turned to microalgae in the search for alternative sources of energy. Initial pilot projects in which a variety of different methods based on state-of-the-art technologies were…

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 - 08/02/2016

Sustainable bioeconomy for a decarbonised world

At the Global Bioeconomy Summit held in Berlin in November 2015, international agendas were adopted that aim to integrate the bioeconomy as part of the development of a sustainable global economy and the fight against man-made global warming. The Summit also called for halting the further deterioration of planetary environmental processes to ensure a sustainable future.

Article - 21/12/2015

What to do with manure?

Pigs, cattle and poultry produce around 1,800 million tons of manure in Europe every year. Farmers provide crops with nutrients by spreading manure on their fields. But what can be done with manure when there are not enough fields to use it on? Researchers from the Fraunhofer Institute for Interfacial Engineering and Biotechnology (IGB) and the University of Hohenheim have joined forces with 13 partners from Germany, the Netherlands, Spain and…

Article - 01/06/2015

Cyanobacteria: real all-rounders – biofuel producers and climate savers

Prof. Dr. Annegret Wilde and Prof. Dr. Wolfgang Hess from the Institute of Biology III at the University of Freiburg have been using the versatile cyanobacteria for quite some time. The two researchers are part of the project "Cyanosys - Systems biology of cyanobacterial biofuel production", which aims to use cyanobacteria for the large-scale production of biofuels from sunlight and carbon dioxide.