Patents
Patented methods for sludge treatment
Agrosistemi has developed and patented specific treatment methods for biological sludge and residual biomasses concerning the extraction of heavy metals, the reduction of POPs (Persistent Organic Pollutants), nitrogen recovery, thermal hydrolysis under pressure, granulation.
Agrosistemi currently has 14 registered patents.
- Patent n. 0001364037, registered on 20/07/2009, for the production of the corrective fertilizer "Gesso di defecazione";
- Patent n. 0001407357, registered on 04/04/2014, on the preparation of a corrective fertilizer precursor, treated with oxidation pushed by H2O2;
- Patent n. 0001410538, registered on 12/09/2014, on the demetallization process of biological sludge;
- Patent n. 0001413642, registered on 30/01/2015, on the production of corrective product "Gesso di defecazione" from digestates;
- Patent n. 0001413643, registered on 30/01/2015, on the production of corrective product “calcium carbonate for defecation†from digestates;
- Patent n. 0001415675, registered on 29/04/2015, on the purification of gaseous fluids from nitrogen oxides (NOx);
- Patent n. 0001415676, registered on 29/04/2015, on the extraction of nitrogen from biomass and / or digestates from methanogenic fermentation;
- Patent n. 0001416010, registered on 04/08/2015, on the extraction of nitrogen from exhausted digestates;
- Patent n. 0001424130, registered on 07/09/2016, on the extraction and energetic recovery and / or agronomic recovery of nitrogen contained in biomass;
- Patent n. 0001426165, registered on 02/12/2016, revised on 28/11/2017, on the treatment of biological materials of the wastewater purification cycle;
- Patent n. EP 2 998 277 A1, registered on 23/03/2016, on the method for the treatment of biological materials associated with the wastewater purification cycle;
- Patent n. 102019000007203, registered on 06/04/2021, on the process and equipment for the recovery of phosphorus from a biomass;
- Patent n. 102019000012378, registered on 05/07/2021, on the thermal hydrolysis method for the treatment of biomass and waste water purification process using the treatment method;
- Patent n. 102021000003791 filed on 18/02/2021, in the approval phase, on the residual biological sludge treatment process for the production of granular fertilizer;