Informed individual about the subsequent details:
The Emschergenossenschaft, a German water management association, is currently undertaking a significant renovation project at the wastewater treatment plant in Bottrop. The project, spanning nine phases, aims to modernise and enhance the functionality of the plant, particularly the final clarification tanks.
The Bottrop wastewater treatment plant, which began operation in 1996, was constructed in 1991, making it one of the earliest facilities built as part of the Emscher conversion project. The plant is designed to clean a maximum of 8,500 liters per second and is capable of serving approximately 1.34 million population equivalents.
The first three phases of the renovation focus on the main influent channels and require an extensive pumping system. From the fourth phase onwards, the pumping system will no longer be necessary. This streamlining is expected to minimise operational disruptions.
To improve the flow behaviour in the final clarification tanks, the inlet openings are being enlarged, and new, optimised baffle plates are being installed. This adjustment is expected to enhance the uniform aeration of the water. The final clarification of the Bottrop wastewater treatment plant consists of three main influent channels and 36 tanks, organised in three "streets" with one main influent channel and twelve tanks each.
As part of the project, operational safety is being improved by replacing the old rakes with two rakes for two tanks each. Safety at work is a priority, with the Emschergenossenschaft making adjustments to the slopes and stairs in the tank area to ensure a safe working environment.
In the future, the clear water channels will be covered to control algae growth. The challenge in such a project is the renovation during operation, allowing a maximum of four tanks to be taken out of service at the same time.
The Welheimer Mark wastewater treatment plant, operated by the Emschergenossenschaft, is Germany's first fully energy-autarkic large wastewater treatment plant. It began construction in 1991, just before the start of the Emscher conversion project, and went into operation five years later, in 1996.
The renovation work at the Bottrop wastewater treatment plant is scheduled to be completed by the end of 2027. The Emschergenossenschaft is investing approximately 45 million euros in the renovation of the final clarification at the wastewater treatment plant site in Bottrop. This investment is aimed at extending the service life of the plant, which is approximately 30 years old.
The renovation project at the Bottrop wastewater treatment plant involves the structural and mechanical renovation or replacement of 36 final clarification tanks. The project is a testament to the Emschergenossenschaft's commitment to maintaining and improving the efficiency and safety of its wastewater treatment facilities.
