NOVELTY - Removing pollutants from water, where the pollutants are hardly biodegradable or non-biodegradable organic compounds and/or heavy metal compounds, comprises supplying the polluted water to a sorption stage to adsorb the pollutants, where the sorption stage comprises at least one main filter (1.3) with renewable raw material as a sorbent material, and anaerobically fermenting the sorption material enriched with pollutants as a substrate in a biogas plant to produce biogas, and optionally after-treating the digestate produced during the fermentation.    USE - The method is useful for removing pollutants from water (claimed).    ADVANTAGE - The method ensures continuous treatment of water samples with hazardous substances difficult to degrade, which harmful to health and environment even in very low concentrations, and the obtained problematic substances loaded sorbent materials can be completely metabolized in a fermentation process and obtained biomass as a final product can be treated safely, and thus the method saves resources, since the comparatively small amounts of residual materials are generated, and material and energy are recyclable.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (1) treating polluted sorption material from renewable raw materials with heavy or non-degradable organic compounds and/or heavy metal compounds as pollutants, comprising anaerobically fermenting the sorption material enriched with pollutants as a substrate in a biogas plant to produce biogas and optionally after-treating the digestate produced during the fermentation; and    (2) a plant for removing the pollutants from water, comprising a sorption stage with at least one main filter which is connected to a biogas plant having at least one biogas fermenter optionally connected to a digestate after-treatment having at least one digestate.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of a plant for removing the pollutants from water.    Inlet (1.1)    Pre-filter (1.2)    Main filter (1.3)    Post-filter (1.4)    Outlet (1.5)