Task
Construction of a municipal wastewater treatment plant with mechanical pre-treatment (coarse and fine screens, aerated grit chamber), primary clarifier, biological treatment with biological phosphorus elimination, secondary clarifier and sludge treatment.
Design data
Preparation quantity:
- Daily wastewater volume: 14,177 m³/d
Target parameters:
- Treated wastewater in accordance with EU water legislation requirements for discharge into surface waters
Solution & implementation
The procedure includes the following process steps:
In the first process step, coarse and fine screens are used to remove coarse impurities from the wastewater. The aerated grit trap installed downstream ensures the separation of grease and oil.
The second treatment stage comprises biological wastewater treatment including nitrification, denitrification and biological phosphorus elimination(ALMA BHU BIO). In the secondary clarifier, the particulate matter and the remaining biomass are separated in a circular clarifier.
The sludge produced in the process is collected separately in a thickener and then dewatered and dried.
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