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The plant was constructed in several stages:#
1. preparatory measures
- Sheet pile sealing wall constructed and maintained until the end of the construction work. 3,700 m² of steel sheet piling in lengths between 14.0 and 15.0 metres installed as a temporary sealing wall.
- Construction of a sheet pile box using the CSM construction method (cutter-soil mix). The soil was excavated under water, after which 950 m³ of underwater concrete was placed as the base of the excavation pit.
2. construction dewatering
- Closed dewatering with vertical filter wells, combined with vacuum filter lances including water treatment for transfer to the tunnel stream; geodetic head up to 6.0 metres.
3. civil engineering, engineering and transport facilities
- Neutralisation basin system with a basin volume of up to 3,600 m³.
4. traffic facilities in asphalt construction including drainage and lighting
5. mechanical and process engineering including pipeline construction and steel construction for
- feed
- Neutralisation / sedimentation / post-sedimentation
- Demanganisation / final pH adjustment
- Dewatering
- Control air supply / drinking and process water supply
Exhaust air technology and unloading area for chemicals
6. electrical and process control technology
- Ensuring the security of supply of the existing plant
- Utilisation and expansion of the existing infrastructure
Medium-voltage supply / centralised main energy management / decentralised low-voltage supply
7. automation and process control technology with a focus on
- Social building
- Sludge treatment
- Chemical treatment
- Lime milk treatment
- Communication technology
