Fresh water to use in greenhouses is not a scarce product in the Netherlands. Compared to other substantial financial expenses for greenhouses like energy and wages, it is actually quite cheap. But the environmental impact of discharging water (containing nutrients and pesticides) to the nearby canals or ditches is very large. In areas with much greenhouse activity the water quality is low despite regulations from the government. Therefore Hoogheemraadschap van Delfland is looking for a way to create more awareness among the entrepreneurs so that they feel responsible for their own pollution. The challenge to the participants: which technical, social or other solution is necessary to create such awareness for water quality issues?
Hoogheemraadschap van Delfland
Wetskills The Netherlands 2015