System and method for preparing functional bio-organic fertilizer by aerobic fermentation of biogas residue

By integrating dehydration and conditioning, compound microbial agent inoculation, dynamic turning and oxygen supply temperature control, and intelligent control, the problems of broken dehydration and conditioning process, single functional microbial agent, crude fermentation control, and unscientific maturity determination in the fermentation process of biogas residue have been solved, thus realizing efficient and stable fermentation and high-value utilization of biogas residue.

CN122404046APending Publication Date: 2026-07-17HENAN ZHENGSHAN NEW ENERGY TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HENAN ZHENGSHAN NEW ENERGY TECHNOLOGY CO LTD
Filing Date
2026-05-12
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing biogas residue treatment technologies have problems such as high moisture content, low carbon-nitrogen ratio, and the presence of pathogens and weed seeds. Direct application can easily lead to risks such as seedling burn and the spread of pests and diseases, and these are technical challenges that existing technologies cannot effectively solve.

Method used

A system and method integrating dehydration and conditioning, compound functional microbial agent inoculation, dynamic turning and oxygen supply temperature control coupled fermentation, and intelligent control and intelligent determination of maturity are adopted to achieve efficient and stable fermentation and high-value conversion of biogas residue.

Benefits of technology

The integrated system enables rapid decomposition of biogas residue, inhibition of pathogens and activation of nutrients. The fermentation process is stable and controllable, the product quality is consistently up to standard, energy consumption and land area are reduced, and the functionality and market competitiveness of biogas residue are enhanced.

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Abstract

本发明公开了一种沼渣好氧发酵制备功能性生物有机肥的系统及方法,包括依次连接的沼渣脱水调理一体化系统、复合菌剂接种系统、动态翻抛发酵系统、智能通风控制系统和腐熟度检测判定系统,通过沼渣脱水、调理、发酵一体化集成设计,将机械脱水、碳氮比调节、物料混合合并为连续工序,减少物料转运与养分流失,降低能耗与占地面积,避免二次污染;通过多功能复合菌剂配伍与均匀接种技术,实现有机物快速分解、病原菌抑制与养分活化,提升发酵效率,赋予产品抗病、促生、固氮解磷解钾等功能性;通过动态翻抛、供氧、温控耦合发酵工艺,分阶段精准控制温度与翻抛频率,避免局部厌氧与温度异常,发酵过程稳定可控,腐熟更均匀。
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