Street waste water treatment plant (SWWTP) Hallmatt

Project planning and realization of a SSWTP for the treatment of street waste water of the N12 national main road.

Special features:

• SWWTP with large catchment area
• 9 ha road surface area
• 38'000 vehicles per day
• 4 tons of pollutants per year
• 2-stage treatment process
• 7 pumping stations/ incident basins along the highway that feed the SWWTP
• Chip filter, and retention filter basin as pre-treatment
• Infiltration via soil passage into groundwater

Services provided by SWISSWATER:

Planning:

• Variant analysis
• Choice of the process
• Emergency incident concept

Project planning:

• Procedure / design
• Hydraulic system
• Structural design
• Estimate of costs

Realization:

• Entire plant
• E I&C system
• Monitoring support