Mariska Ronteltap works for Delfland Water Authority with the transition to a circular water system as a main focus. She is an environmental engineer with a degree from Wageningen and ETH Zurich / EAWAG Swiss Institute for Aquatic Research. 

The transition to a circular water system raises many challenges: energy reduction, safe water reuse with respect to nutrients and micropollution, recovery of resources, sustainable sludge management, optimisation of the water system in its surrounding. Mariska applies an integrated vision to the water system in order to be more ready for a sustainable future. 

research interest

• Water in a circular economy 
• Resource recovery from wastewater sources 
• Education for water professionals