Back to profile profile_subnav_projects - ir. JWH (Jennie) van der Kolk Projects by JWH van der Kolk ER nieuwe methoden ER nieuwe methoden - WUR Project ER nieuwe methoden Commissioned by the Ministry of Agriculture, Nature and Food Quality, the climate envelope is... Helmond climate neutral Production of sustainable energy from manure and other biomass; Options and combinations of digestion in the Helmond region.