tarboat's photos with the keyword: ruhr

Digester towers at the Bottrop sewage treatment plant in the Ruhr. These are the world's largest digestion towers. The site purifies 8,500 liters of water per second and produces 190,000 tons of sewage sludge annually.

Paint shop of an engineering company manufacturing conveyors and silos.

Shafts 1 & 2 of Zeche Westfalen at Ahlen were sunk from 1909 and the first coal raised in January 1914. Mining here ended on June 30th 2000 and these are the only two of seven headframes that this mine once had at a number of locations in the area. Some of the surface building have been preserved or have found new uses.