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C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P20/00—Technologies relating to chemical industry
Y02P20/10—Process efficiency
Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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FR565509D1923-04-251923-04-25Perfectionnements dans les procédés de traitement des boues des eaux d'égout ou matières analogues
ExpiredFR565509A
(fr)
Perfectionnements aux procédés et aux appareils pour l'incinération de boues d'égoûts et procédé pour le traitement des eaux d'égoûts ou d'autres matières analogues
Procédé de détermination et de réglage de la teneur en chlore ou agents analogues d'épuration de l'eau d'une eau courante ou d'eaux résiduelles