Reduction of spills : Exploiting the network's storage capacities
Limit discharges from the sewerage network to the receiving environment via storm overflows and optimise implementation costs for the project owner.
The 3D EAU solution
Exploit the storage capacities of existing networks with the help of carefully positioned tilting valves developed and implemented by HYDRASS-3D WATER.
1 – Dry weather
2 – Storage
3 – Storage limit
4 – Spill
5 – Back to normal
Proposed general methodology
Phase 1 - Feasibility study
Taking into account the real environment of the work.
Characterisation of the hydraulic behaviour of the future valve to guarantee a good integration in the existing environment.
Phase 2 - Design and implementation
Design, manufacture and assembly in the workshop.
Testing on hydraulic test bench.
Phase 3 - Delivery
Delivery on site
Assistance with commissioning
Less costly alternative to the creation of basins
Mechanical system that does not require a power supply
Can be integrated into a hydraulic network model
Instrumentable device for self-monitoring purposes
Anti-return function possible in case of downstream influence of the receiving medium
1. Installation in thunderstorm overflow - Deomatic valve
The Déomatic valve makes it possible to set the discharge height according to the capacity of the upstream network in order to store during current rains and to maintain the discharge capacity for heavy rains.
no impact on the network
limited impact on the network
2. Networking - Stocko valve
The Stocko valve makes it possible, when there is no discharge point, to store in the upstream manifold for routine rainfall without limiting its discharge capacity for heavy rainfall.
Valve closed,no impact on the network
Valve closed,network storage
Valve open,limited impact on the network
Reason managers are encouraged to test the impact of the Déomatic and StockO valves in their network models using the tool proposed by HYDRASS-3D EAU for this purpose.