New flocculation filtration system
Modernization of wastewater treatment plant
Engineering services
Engineering structures, LPH 1-9
Structural engineering, LPH 1-6
Technical equipment, LPH 1-9
Processing period
Planning: 2020 - 2024
Construction: 2024 - 2027
Client
KASSELWASSER
Gartenstraße 90
34125 Kassel
Contact
Dipl.-Ing. Alexander Voigt
Project Management
Tel. +49 (0)201 89 67-251
a.voigt@dahlem-ingenieure.de
Short description
In view of future increased requirements for Pges and Nges flow values, KASSELWASSER is constructing a new flocculation filtration system at the Kassel wastewater treatment plant for further phosphorus elimination, as well as a C-source dosing station to improve denitrification.
The aim here is to ensure a future Pges discharge value of ≤ 0.2 mg/l as an annual average and an Nges monitoring value of 13 mg/l. This measure will significantly reduce the phosphorus and nitrogen input into the receiving water (Fulda).
The expansion of the wastewater treatment plant to include ozonation for further micropollutant elimination has already been taken into account in the planning.
In view of future increased requirements for Pges and Nges flow values, KASSELWASSER is constructing a new flocculation filtration system at the Kassel wastewater treatment plant for further phosphorus elimination, as well as a C-source dosing station to improve denitrification.
The aim here is to ensure a future Pges discharge value of ≤ 0.2 mg/l as an annual average and an Nges monitoring value of 13 mg/l. This measure will significantly reduce the phosphorus and nitrogen input into the receiving water (Fulda).
The expansion of the wastewater treatment plant to include ozonation for further micropollutant elimination has already been taken into account in the planning.
Project data
- Expansion size: 340,000 PE
- Peak inflow during rainy weather: 8,640 m³/h
- New flocculation filtration system including separate dosing station (addition of precipitating agents and optional flocculants for chemical P elimination to achieve an operating value of Pges. ≤ 0.2 mg/l)
- Planning consideration of ozonation (as an option for later implementation)
- New construction of connection shafts
- New construction of C-source dosing station to improve denitrification (tightening of Nges monitoring value to 13 mg/l)
