EP 4291534 A1 20231220 - METHOD FOR THE COMBINED RECYCLING OF PHOSPHATE AND NITROGEN FROM SEWAGE SLUDGE AND OPTIONALLY BIOLOGICAL WASTE
Title (en)
METHOD FOR THE COMBINED RECYCLING OF PHOSPHATE AND NITROGEN FROM SEWAGE SLUDGE AND OPTIONALLY BIOLOGICAL WASTE
Title (de)
VERFAHREN ZUR KOMBINIERTEN RÜCKGEWINNUNG VON PHOSPHAT UND STICKSTOFF AUS KLÄRSCHLAMM UND GEGEBENENFALLS BIOLOGISCHEN ABFÄLLEN
Title (fr)
PROCÉDÉ DE RECYCLAGE COMBINÉ DE PHOSPHATE ET D'AZOTE À PARTIR DE BOUES D'ÉPURATION ET ÉVENTUELLEMENT DE DÉCHETS BIOLOGIQUES
Publication
Application
Priority
- DE 102021103522 A 20210215
- DE 102021000786 A 20210216
- DE 2022100126 W 20220215
Abstract (en)
[origin: WO2022171252A1] The invention relates to a method for the combined recycling of phosphate and nitrogen from sewage sludge. The core task of the invention consists in the recycling of phosphorus from sewage sludge ash and the reaction of phosphorus with nitrogen from the vapors of the sewage sludge drying and the manure to form the NP fertilizer diammonium phosphate.
IPC 8 full level
C02F 1/00 (2023.01); C01B 25/01 (2006.01); C01B 25/20 (2006.01)
CPC (source: EP US)
C01B 25/01 (2013.01 - EP); C01B 25/20 (2013.01 - EP); C02F 1/42 (2013.01 - US); C02F 9/00 (2013.01 - EP); C02F 11/008 (2013.01 - US); C02F 11/06 (2013.01 - US); C02F 11/12 (2013.01 - US); C05B 1/00 (2013.01 - EP); C05B 7/00 (2013.01 - EP); C05B 17/00 (2013.01 - EP); C05F 7/00 (2013.01 - EP); C01B 25/32 (2013.01 - EP); C02F 1/20 (2013.01 - EP); C02F 1/42 (2013.01 - EP); C02F 1/5236 (2013.01 - EP); C02F 1/66 (2013.01 - EP); C02F 11/06 (2013.01 - EP); C02F 11/121 (2013.01 - EP); C02F 11/13 (2018.12 - EP); C02F 2101/105 (2013.01 - EP US); C02F 2101/16 (2013.01 - EP US); C02F 2103/005 (2013.01 - US); C02F 2209/07 (2013.01 - US); C02F 2303/26 (2013.01 - EP)
Citation (search report)
See references of WO 2022171252A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022171252 A1 20220818; AU 2022219144 A1 20230824; CA 3207915 A1 20220818; DE 112022001097 A5 20240215; EP 4291534 A1 20231220; JP 2024509713 A 20240305; US 2024116792 A1 20240411
DOCDB simple family (application)
DE 2022100126 W 20220215; AU 2022219144 A 20220215; CA 3207915 A 20220215; DE 112022001097 T 20220215; EP 22711461 A 20220215; JP 2023547645 A 20220215; US 202218546326 A 20220215