System (S) for the treatment of organic waste and/or waste (B), particularly waste from biogas plants, slurry and the like, cut or green waste and/or sewage sludge, comprising - a device for removal of impurities from the organic waste (B), - a device for crushing the organic waste material (B) which is arranged downstream the device for removal of impurities, - a device for conversion of the organic waste (B) into the processed products coal (K) and process water (P) using hydrothermal carbonization which is arranged downstream the device for removal of impurities and/or the device for crushing the organic waste material (B), - a device for separation of the processed products coal (K) and process water (P) resulting from the hydrothermal carbonization, particularly a chamber filter press or a centrifuge, which is arranged downstream the device for conversion of the organic waste (B) into the processed products coal (K) and process water (P) using hydrothermal carbonization, - a device for drying the coal (K) obtained as a processed product, which is arranged downstream the device for separation of the processed products coal (K) and process water (P) resulting from the hydrothermal carbonization, wherein a process water (P) resulting from the drying of the coal (K) is conveyed to the process water (P) obtained by the hydrothermal carbonization, and - a device for an at least partial vacuum distillation of the process water (P) obtained as a processed product by concentrating using negative pressure for the production of fertilizer which is arranged downstream the device for separation of the processed products resulting from the hydrothermal carbonization, comprising - an apparatus for a distillation of a volatile ammonium contained in the process water (P) and - an apparatus for the subsequent mixing of the distilled ammonium with a sulphuric acid for the production of an ammonium sulphate usable as fertilizer. - a device for removal of impurities from the organic waste (B), - a device for crushing the organic waste material (B) which is arranged downstream the device for removal of impurities, - a device for conversion of the organic waste (B) into the processed products coal (K) and process water (P) using hydrothermal carbonization which is arranged downstream the device for removal of impurities and/or the device for crushing the organic waste material (B), - a device for separation of the processed products coal (K) and process water (P) resulting from the hydrothermal carbonization, particularly a chamber filter press or a centrifuge, which is arranged downstream the device for conversion of the organic waste (B) into the processed products coal (K) and process water (P) using hydrothermal carbonization, - a device for drying the coal (K) obtained as a processed product, which is arranged downstream the device for separation of the processed products coal (K) and process water (P) resulting from the hydrothermal carbonization, wherein a process water (P) resulting from the drying of the coal (K) is conveyed to the process water (P) obtained by the hydrothermal carbonization, and - a device for an at least partial vacuum distillation of the process water (P) obtained as a processed product by concentrating using negative pressure for the production of fertilizer which is arranged downstream the device for separation of the processed products resulting from the hydrothermal carbonization, comprising - an apparatus for a distillation of a volatile ammonium contained in the process water (P) and - an apparatus for the subsequent mixing of the distilled ammonium with a sulphuric acid for the production of an ammonium sulphate usable as fertilizer. <EOS>