Abstract The present invention relates to a system and method for enriching water. The system comprises means for receiving water; a layer comprising at least 80 wt.% dried plant material, preferably hay; a layer allowing passage of water, the layer comprising at least 80 5 wt.% plastic or soil, preferably clay; a layer comprising at least 80 wt.% plant silage; a filter layer; and means for collecting the water processed by the system. The system can be used in a method for enriching water. Further, the present invention relates to the enriched water thus obtainable 10