The Nitrate scrubber

To remove gaseous ammonia and other odor compounds from the air, the air is 'washed.' Acidic wash water is used to capture basic ammonia and convert it into a fertilizer substitute, which remains dissolved in the washing water. Thanks to a patented control protocol developed at the KU Leuven that utilizes nitric acid, water consumption is ten times lower than that of traditional air scrubbers. This control protocol also increases the concentration of ammonium nitrate in the produced discharge water, resulting in a very high fertilization value. This not only leads to lower operational costs but also contributes to sustainable water management and circularity while reducing dependence on industrially produced fertilizers.