Hans has a long-standing experience in water and wastewater treatment technology companies, both as a consultant and as a technology supplier. Today Hans is entrepreneur and co-founder of technology developer Brightwork BV (www.brightwork.nl) in water and wastewater.

He has set up an international network of partners and agents for successfully introducing the developed products into the marketplace. Hans is author and co-author of over 60 papers in both peer reviewed and open journals in water and wastewater technology.