A group of young German scientists founded a company in the late 1990s that today is the world leader in solar sludge drying. The star of the environmentally friendly drying process is an unusual mole, that works all day without food or complaint. The first electrical mole was built by Tilo Conrad, together with two of his fellow students from the University of Hohenheim ca. 12 years ago.
The stainless steel mole, an important part of a larger solar drying process, was patented by Thermo-System GmbH, a company founded by Tilo Conrad in 1997 in Filderstadt, Germany.
This device is now being used as a solution to waste disposal problems throughout the world.
The electrical mole is a fully automated robot complete with stainless steel mixing tools and tills. It aerates the microbiologically active sludge, thereby accelerating the drying process. The whole system is fully automated, is easily to maintain and uses very little energy.
Today, nearly 200 mechanical wallow in and shuffle through the mud to reduce sewer sludge disposal costs and protect the environment.
Source: Young Germany
© Flavia Westerwelle