Stock Photo - 02 March 2021, North Rhine-Westphalia, Oberhausen: A lever for opening and closing a valve is attached to the plant. 16,000 litres of water from the Emscher will flow through the pipes of the pumping station per second once the plant goes into operation. The wastewater from the Emscher sewer will arrive at a depth of around 40 metres and will then be pumped to a level close to the surface, after which it will be transported to the ""Emschermündung wastewater treatment plant"" in Dinslaken via a connecting sewer almost three kilometres long. Photo: Fabian Strauch/dpa. - Oberhausen/North Rhine-Westphalia/Germany