Method for enhancing removal of resistance genes in aerobic compost and promoting humification

• Main Authors: ZHU YANYUN, CAO YUN, LONG YUJIAO, JIN HONGMEI, ZHU NING, ZHANG JING
• Format: Patent
• Language: Chinese; English
• Published: 28.06.2024
• Subjects: CHEMISTRY; FERTILISERS; FERTILISERS CHARACTERISED BY THEIR FORM; MANUFACTURE THEREOF; METALLURGY; MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS; ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE

The invention provides a method for enhancing removal of resistance genes in aerobic compost and promoting humification, which comprises the following steps: mixing livestock and poultry manure with compost auxiliary materials, adjusting the water content to 55-65%, and adding a MnFe2O4 additive to obtain a compost raw material; the materials are subjected to aerobic composting, turning is conducted once every 2-3 days in the heating period and the high-temperature period, turning is conducted once every 7 days in the cooling period and the decomposition period, and the aerobic composting time is 20-30 days; compared with a conventional composting method, the method has the advantages that the relative abundance of resistance genes of sulfonamides, tetracyclines, macrolides and aminoglycosides in a compost rotten product obtained through the method is reduced by 60%-73%, 50%-57%, 20%-80% and 45%-66% respectively, the humic acid HA is increased by about 15%, meanwhile, efficient harmlessness and recycling of o