Voluntari WWTP, Romania
Project description
Voluntari municipality decided to elaborate the feasibility study for city’s upgrade of the sewerage system infrastructure through extending the wastewater and stormwater separate/combined collection networks and build a new wastewater treatment plant.
Within this contract, our team provided process design for Voluntari city (Ilfov county, Romania) wastewater treatment plant covering preliminary treatment, primary treatment, advanced biological treatment and sludge treatment up to 22% solids content.
The plant was designed for a dry weather maximum daily flowrate of 55.226,4 m3/day serving an equivalent population of 300.000 PE.
The plant’s treatment scheme comprised:
- wastewater treatment: preliminary treatment (screening, grit and grease removal), primary treatment (primary clarification), advanced biological treatment with sludge stabilization (pre-denitrification for biological nitrogen removal, enhanced phosphorus biological removal), chemical phosphorous removal
- sludge treatment: primary sludge gravity thickening, excess sludge mechanical thickening, thickened sludge anaerobic digestion, biogas cogeneration, digested sludge mechanical dewatering, and dewatered sludge storage.
The following disciplines were covered within the project:
- Process
- Hydraulics
- Mechanical