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HRAPPSTEAD KENNETH W
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HRAPPSTEAD KENNETH W
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Application filed by HRAPPSTEAD KENNETH WfiledCriticalHRAPPSTEAD KENNETH W
Application grantedgrantedCritical
Publication of CA1073731ApublicationCriticalpatent/CA1073731A/fr
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
Process and equipment for the utilization of sludges forming as by-products of the purification of waste waters containing organic contamination,mainly of communal wastes