Bioeconomy

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.

An interdisciplinary team of scientists at the Max Planck Institutes for Intelligent Systems and Solid State Research has developed a biocompatible microswimmer made of carbon nitride, which they can propel forward through light. The particle can also store solar energy similar to miniature solar cells equipped with batteries, and can thus also swim in the dark using the stored energy.

Germany generates around 38 kilograms of plastic waste per capita each year. Researchers from the Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB and the Fraunhofer Institute for Process Engineering and Packaging IVV are now working to establish a holistic concept for the sustainable use of biologically degradable packaging materials in the cosmetics industry. The project is focusing on polyhydroxyalkanoates (PHAs).

The European Environment Agency (EEA) recently published its new report “Biodegradable and compostable plastics – challenges and opportunities”. The report highlights many positive aspects of biodegradable and compostable plastics. Unfortunately, its interpretation in several media outlets focused exclusively on the few critical assumptions the report makes regarding consumer perception.

The European Commission (EC) and the European Investment Bank (EIB) have launched a circular bioeconomy fund with a target size of €250m.

The workshop organised by Science Business, a leading publication on European research and innovation, involving BIC and the BBI JU, refined several key policy recommendations to European and national policymakers.

New EIT Food project aims to use computer models to optimize bakery processes in order to minimize food waste, energy consumption, and CO2 emissions. Prof. Dr. Bernd Hitzmann: "With the help of simulations, we want to optimize the processes in bakeries, which leads to higher economic and ecological efficiency. This not only reduces production costs for bakeries, but also helps to slow the progress of climate change".

New biomaterials developed at the University of Bayreuth eliminate risk of infection and facilitate healing processes. These nanostructured materials are based on spider silk proteins. They prevent colonization by bacteria and fungi, but at the same time proactively assist in the regeneration of human tissue. They are therefore ideal for implants, wound dressings, prostheses, contact lenses, and other everyday aids.

A viscous biopaste that is easy to process, solidifies quickly and is suitable for producing even complex structures using the 3D printing process has been developed by a research team headed by Prof. Dr. Marie-Pierre Laborie from the Chair of Forest Biomaterials at the University of Freiburg. The wood-based biodegradable synthetic could potentially be used in lightweight construction, amongst other things.

What alternatives to conventional agriculture exist to produce carbohydrates for food and feed? Scientists at Heidelberg University performed model calculations for artificial sugar production with a view towards synthesis of other carbohydrates such as starch.

Time for climate protection is pressing. One approach to tackle this challenge is to use the greenhouse gas CO2 as a raw material for chemicals. The researchers of the Fraunhofer Institute for Interfacial Engineering and Biotechnology IGB, together with partners from science and industry, were able to produce a value-added terpenoid dye from CO2 adsorbed from air by a combination of electrochemical and biotechnological conversion.

In Sumatra, small-scale farmers in particular play a key role, according to a study on the conversion of rainforests into monocultures and their effects Oil palm plantations as far as the eye can see. In addition to a dramatic loss of many animal and plant species, such plantations often lead to massive environmental problems.

Packaging protects products during transport and storage. In order to develop sustainable packaging and conserve resources, Henkel developed an evaluation tool that quickly and reliably checks plastic packaging for recyclability. The tool has now been expanded to include common materials, so that packaging made of paper/cardboard, glass, aluminum and tinplate can be analyzed in addition to plastic. Fraunhofer UMSICHT tested the software tool.

A soft material that heals itself instantaneously is now reality.

Since the beginning of 2019, the Fraunhofer Institute for Biomedical Engineering IBMT has been working on a comprehensive characterization and humantoxicological assessment of nanocellulose along its life cycle in the BMBF-funded joint project "NanoCELL" under the coordination of Postnova Analytics GmbH, in order to achieve a reliable risk assessment and safe use in environmentally friendly packaging materials.

Qualitative soil fertiliser - 10/07/2020

How natural cycles can be closed with wood ash

Recycled material instead of waste: wood ash is good for soil and plants - if the quality is right. The German Federal Quality Association for Food Ash ensures reliable wood ash standards with its certifications. The RAL-Dünger label for fertilisers provides the necessary certification for natural wood ashes to be used in the circular economy.

A report recently published by the Bio-based Industries Consortium (BIC) and Zero Waste Europe (ZWE) shows that with only 16% of the biowaste potential being used, the biowaste management still remains an untapped potential for the European Union to further transition to a Circular Economy. Both organizations jointly produced a first-of-its-kind report estimating the current and future availability of bio-waste in the EU27.

The Witzenhausen Institute and the University of Bayreuth conducted a very interesting study, analysing the compost of several German industrial composting facilities for possible plastic content deriving from compostable biowaste bags. The field study concluded that compostable bags, certified according to the European standard EN 13432, do not pose any challenges to the quality of the compost.