Harmless treatment method suitable for mixed compost of kitchen waste and breeding waste

• Main Authors: KOU QUANXIN, GAO KEKE, YE SONG, TIAN WENJIE, LIU HAIYAN, MA LIDA, ZHANG LINLIN, ZHANG FANGYUAN, XU ZHIZONG
• Format: Patent
• Language: Chinese; English
• Published: 05.04.2022
• 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 discloses an innocent treatment method suitable for mixed compost of kitchen waste and breeding waste. The treatment method comprises the following steps: step 1, pretreating the kitchen waste; 2, pretreatment of breeding manure; step 3, pretreatment; step 4, aerobic fermentation; step 5, anaerobic fermentation; performing anaerobic fermentation on liquid excrement obtained after solid-liquid separation of the breeding excrement in the step 2 to generate biogas and biogas slurry, recycling and concentrating the biogas to perform waste heat utilization on aerobic fermentation, performing solid-liquid separation on the biogas slurry, using liquid for preparing a liquid fertilizer, returning a solid phase to the step 2, mixing the solid phase with a solid phase of the breeding excrement, and performing aerobic fermentation, according to the treatment method disclosed by the invention, an aerobic fermentation process and an anaerobic fermentation process are combined, an aerobic fermentation technol