Ventilation systems and ventilation concepts for sewerage networks

Gases that are hazardous to health or explosive can accumulate in sewerage networks. A fresh air supply tailored to requirements, reliable measurement systems and a properly designed ventilation system form the basis for safe working procedures. We support projects from the analysis stage through to technical design, implementation and the training of operational teams.

Our teams analyse the atmosphere within the sewers, assess the required air exchange rate and plan technical measures for maintenance work, inspections and day-to-day operations.

• Development of ventilation concepts for sewer networks and sewer operations
• Calculation of natural air exchange in standard and extra-long sewer systems
• Investigation of the necessity and suitability of mechanical forced ventilation
• Design of measurement-based monitoring systems for the sewer atmosphere
• Planning and monitoring of the control system for a demand-based fresh air supply
• Design of fans and other ventilation equipment
• Determination of air requirements to support protection against concrete corrosion
• Preparation of explosion protection documentation for tunnel systems at risk from gas
• Investigation of suitable manhole spacing to promote natural air exchange
• Assessment of forced ventilation systems (both supply and extract) with regard to their technical and operational requirements
• Support with maintenance work and the planning of safe sewer inspections
• Training of operational teams in the safe implementation of ventilation and monitoring systems