| abstract |
The invention relates to a planted organic filter for the treatment of pollutants, said planted organic filter comprising an inlet for the pollutants to be treated, an outlet for the non-degraded pollutants, and means of filtration and depollution arranged between the inlet and the outlet of the pollutants. The invention is characterised in that a) said filtration and depollution means take the form of an organic substrate consisting of between 10 and 20% of aggregates that are preferably non-soluble and have an irregular surface, more than 30% of plant fibres in the form of a ligneous material, and between 20 and 40% of compost containing more than 30% of ligneous material and preferably having a biological stability index (BSI) higher than 0.5, and b) said organic substrate is planted with european and/or tropical/desertic canes, said canes preferably encouraging a high carbon dioxide sequestration. The invention also relates to a device for treating polluted water, soil or air, comprising at least one above-mentioned planted organic filter, and to a method for treating polluted water, soil or air, including the introduction of polluted water, soil or air into an above-mentioned device. |