Water Quality

  • Goals: Improved water quality, enhanced environmental quality, counteract coastal saline intrusion.
  • Solutions: Water purification through (partial) in-situ processes, MAR and ASR.
  • Green infrastructure: subsurface environment providing natural and in-situ attenuation of contaminants, carbon and nutrient regulation, riparian buffer strips.
  • Grey infrastructure: Pump-and-treat solutions, managed/enhanced in-situ soil and aquifer treatment, reactive subsurface barriers, subsurface dams, riverbank filtration, injection wells in coastal areas.
  • Policy interventions: (Ground)water and soil quality standards, groundwater and soil protection policies, pollution liability regulations.


Case Studies

ASR-Coastal (Aquifer Storage and Recovery using multiple partially penetrating wells)

Optimizing freshwater storage in brackish and saline aquifers through innovative well design and pumping schemes



Riverbank filtration for year-round safe water supplies – experiences from Uttarakhand, India

Groundwater systems and solar power help clean river water naturally and sustainably



Saving a big city’s water supply from contamination through in-situ bioremediation – the case of Berlin, Germany

Enhancing the ability of groundwater to recover from quality degradation




Stormwater harvesting via brackish aquifers

Making use of brackish aquifers to store urban stormwater in winter for summer irrigation





Unmanaged aquifer recharge with poor outcomes in India

Leaving untreated wastewater from the textile industry to infiltrate compromises nature-based solutions



A nature-based, innovative and low-cost solution for disaster-resilient drinking water supply in coastal Bangladesh

Using managed aquifer recharge (MAR) to buffer water storage and shield against saltwater ingress

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