The SupremeTech project will provide the scientific basis for developing cost-effective landscape filter technologies targeting nutrient reduction in agricultural drainage water by:
- identifying the best performing filter substrates for retaining and transforming nutrients under highly variable flow regimes and nutrient loads
- exploring technical solutions for field scale implementation of drainage filters
- modeling system performance and analyzing cost-effectiveness The SupremeTech research is structured into eight work packages (WP0-WP7). A broad range of industrial products will be investigated in the laboratory for their suitability as filter substrates. Selection criteria comprise affinity, capacity and kinetics of P-retention (WP1, WP2), hydraulic properties (WP2), biological suitability (WP4) and non-toxicity (WP5). The best performing filter substrates will be investigated in semi- or full scale drainage filter systems and compared with more simple concepts of constructed wetlands (WP3). Nitrogen removal by denitrification and potential greenhouse gas emission will be investigated on field scale systems. The project also addresses the suitability of filter substrates for retaining other micro-pollutants as well as the potential for recycling P-saturated filter substrates on agricultural land (WP5). Modeling filter behavior (WP6) and analyzing cost effectiveness (WP7) will help evaluating the filters suitability for mitigating nutrient losses.