Our success stories.
Rotterdam Zoo collects rainwater from its main square to irrigate plants and cut dependence on drinking water and groundwater
Client: Diergaarde Blijdorp (Rotterdam Zoo)
Partners: Bufferblock, Hoogheemraadschap Schieland en Krimpenerwaard, Gemeente Rotterdam, TU Delft
Year: 2020–2021
Problems solved: Soil subsidence & water stagnation/flooding on main square, high drinking water demand, sewer overload
Rainwater reused for: Irrigation of tropical plants; supplement to groundwater distribution network
Impact: 7,800 m³/year reused (approx. 8 million litres/year); 9,900 m² catchment; 130 m³ buffer
Rotterdam turns a city street into an underground freshwater reserve
Client: Municipality of Rotterdam
Year: 2020–2021
Problems: Sewer overflow, climate-proofing city centre, public water awareness / education
Rainwater reused for: Deep underground storage; children's interactive hand pump; public demonstration
Impact: 4,000 m³/year reused; 10,000 m³ stored; 1,200 m² catchment