Disconnection devicesDisconnection devicesNijmegenNijmegen

Antal ZuurmanAntal Zuurman

Consultant water Consultant water management Municipality management Municipality

NijmegenNijmegen

Collect & application Collect & application of rainwater (2)of rainwater (2)

1. Treatment techniques of stormwater

Infiltration (1)Infiltration (1)

1.1. Infiltration over ground levelInfiltration over ground level – Grass swale trenchGrass swale trench– Infiltration fieldInfiltration field– Infiltration basinInfiltration basin

2.2. HybridHybrid– AquaflowAquaflow

1. Treatment techniques of stormwater

Infiltration (2)Infiltration (2)

3.3. Infiltration undergroundInfiltration underground– Porous infiltration tube Porous infiltration tube

(concrete/plastic) (concrete/plastic) – Plastic infiltration cratePlastic infiltration crate– Infiltration hemispheresInfiltration hemispheres

1. Treatment techniques of stormwater

Infiltration (3)Infiltration (3)

1. Treatment techniques of stormwater

Infiltrationfield versus grass Infiltrationfield versus grass swale/trench (4)swale/trench (4)

geo textile

Coarse sanddrain

‘Slok-op’

Humous soil

35 cm

Flexible length

1. Treatment techniques of stormwater

Infiltration (5)Infiltration (5)AquaflowAquaflow

1. Treatment techniques of stormwater

Infiltration (5)Infiltration (5)AquaflowAquaflow

1. Treatment techniques of stormwater

Storage of rainwater (1)Storage of rainwater (1)

1.1. Hybride = Watershell / concrete basinsHybride = Watershell / concrete basins2.2. Existing surface water pondsExisting surface water ponds3.3. New surface waterNew surface water

1. Treatment techniques of stormwater

PROGRAMMEPROGRAMME

1.1. Disconnection techniques in Disconnection techniques in commoncommon

2.2. Applied systems in NijmegenApplied systems in Nijmegen3.3. Tips & TricksTips & Tricks

ConstraintmentsConstraintments

1.1. Contribution to public awareness of Contribution to public awareness of rainwaterrainwater

2.2. Access to devices for inspectionAccess to devices for inspection3.3. Access for appropriate maintenanceAccess for appropriate maintenance

2. Applied systems in Nijmegen

1. Grass Swale /Trench1. Grass Swale /Trench

2. Applied systems in Nijmegen

2. Aquaflow2. Aquaflow

2. Applied systems in Nijmegen

3. Porous paving3. Porous paving

2. Applied systems in Nijmegen

4. Infiltration tube4. Infiltration tube

2. Applied systems in Nijmegen

5. Visual Water art projects5. Visual Water art projects

2. Applied systems in Nijmegen

6. Transport Gutters at private 6. Transport Gutters at private areaarea

2. Applied systems in Nijmegen