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.
https://www.biooekonomie-bw.de/en/articles/news/bacteria-help-recycle-phosphorusWhile the use of biotechnological methods for the purification of water, soil and air has already been state of the art for quite a few years, the use of microorganisms for the recovery of metal and mineral raw materials from industrial and agricultural waste has also started to attract the interest of scientists. This dossier addresses this topic, explains what geobiotechnology and urban mining are all about.
https://www.biooekonomie-bw.de/en/articles/dossiers/microbial-raw-material-recycling
