Method for producing carbon source through co-fermentation of sludge and kitchen waste

By constructing a bubble coupling distribution model and nonlinear resonance fingerprint, high-frequency energy accumulation regions were identified. Phase conjugate correction and cavitation damping were applied to solve the mechanical impact problem caused by bubble resonance in the co-fermentation of sludge and kitchen waste, thereby improving the stability of the fermentation system and the carbon source release efficiency.

CN121555583AInactive Publication Date: 2026-02-24TAIAN DONGYUE ECOLOGICAL ENVIRONMENT HOSPITAL CO LTD
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Patent Information

Application Number
CN202511734882.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-11-25
Publication Date
2026-02-24
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

During the co-fermentation of sludge and kitchen waste, the nonlinear resonance effect caused by uneven bubble generation leads to local energy accumulation, resulting in mechanical impact on the mixing blades and pipe connections, which intensifies structural fatigue or even causes breakage, and reduces reaction efficiency.

Method used

By collecting bubble generation time sequence, liquid phase pressure fluctuation signal and acoustic scattering signal, a coupled distribution model of bubble size and oscillation frequency is constructed, high-frequency energy accumulation region is identified, nonlinear resonance fingerprint is generated, shock wave propagation trajectory is simulated, a controllable suppression bandwidth model is established, phase conjugate correction operation is applied and cavitation damping is injected, self-suppression interference control is implemented, and gas-liquid circulation path is reconstructed to dissipate abnormal energy.

Benefits of technology

It enables real-time energy fluctuation sensing and interference of the fermentation system, reduces the risk of equipment structural fatigue, improves gas-liquid mixing uniformity and carbon source release efficiency, extends equipment service life and improves system stability.

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Abstract

The invention discloses a method for producing a carbon source through co-fermentation of sludge and kitchen waste, and relates to the technical field of organic waste recycling, and the method comprises the following steps: collecting a bubble generation time sequence, a liquid phase pressure fluctuation signal and an acoustic scattering signal in a sludge and kitchen waste co-fermentation system, and constructing a coupling distribution model of a bubble size and an oscillation frequency; generating an initial energy evolution spectrum; and under the constraint of the initial energy evolution spectrum, identifying a coherent feature sequence of bubble oscillation, calculating the energy concentration intensity of a multi-scale bubble group, positioning a high-frequency energy concentration area and generating a nonlinear resonance fingerprint. By means of dynamic monitoring and intelligent regulation and control, the energy gathering area is accurately positioned, the resonance process is intervened in real time, suppression of shock wave propagation and predictive control over the structural fatigue risk are achieved, and the fermentation system stability and the carbon source release efficiency are improved.
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