Bioeconomy

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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.

Article - 25/01/2016

How the application of chemicals in response to oil spills can be improved

When an oil spill occurs, chemical dispersants are routinely applied to the surface of the oil-contaminated seawater or into deeper water regions. Dr. Sara Kleindienst, a molecular ecologist from the Centre for Applied Geoscience at the University of Tübingen, has now shown that chemical dispersants do not stimulate oil biodegradation. In cooperation with an international team of researchers, Kleindienst simulated the Deepwater Horizon oil well…

Article - 11/11/2015

A metal enzyme that can cleave benzene rings

Aromatic rings are extremely stable and very difficult to break apart. Prof. Dr. Matthias Boll from the University of Freiburg’s Faculty of Biology and his team work with Geobacter metallireducens, a bacterium that can completely degrade aromatic compounds under strictly anaerobic conditions. While the biological degradation of aromatic hydrocarbons is of global relevance, the chemical resulting from the reduction of benzene rings could also be…

Article - 11/10/2010

Mineral-forming bacteria of great usage value

They’ve been active in the background for billions of years, but they have now come to the fore as potent helpers – we’re referring to iron-oxidising bacteria. Researchers from Tübingen have recently shown that iron-oxidising bacteria lead to rust-coloured, banded rock formations in countries like South Africa and Australia. When the bacteria form iron minerals they bind heavy metals, a characteristic that makes them interesting candidates for…

Article - 13/09/2010

Molecules adapted to the environment

For many years Prof. Dr. Klaus Kümmerer from the University Medical Centre Freiburg has been investigating how the chemical structures of drugs and other chemicals can be modified in order to enable them to be degraded more quickly in rivers and soils. There has to be a new way of thinking said Kümmerer going on to add the appropriate methods are already in place.

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.

Article - 19/06/2009

Bacteria with a chromium envelope

Heavy metals have become a huge problem for mankind. The construction of factories and the varnishing of cars leads to the contamination of soils and waters and therefore also to the poisoning of many organisms including people. Scientists are trying to use natural means to remove inorganic chemicals from the cycle or at least make them harmless. Dr. Johannes Gescher and his team at the Department of Microbiology at the University of Freiburg…