Improved procedure for the elimination of nitrates from ground and surface water and equipment for carrying out said procedure (Machine-translation by Google Translate, not legally binding)

摘要

The invention provides a method and a device for removing nitrates from ground and surface water based on a denitrification by biological filtration, including a stage of chemical conditioning of the water to be treated; a stage of biofiltration and a washing stage of the biofilter, where, in the biofiltration stage, the water to be treated is passed to the reactor containing the biofilter following a horizontal flow, the water entering the reactor at one end and leaving the water treated by the opposite end and the washing stage is carried out without adding treated water, with the water originally treated, with the excess biomass accumulated in the biofilter support material being removed together with the water. (Machine-translation by Google Translate, not legally binding)