A method of black soldier fly larvae bioconversion of municipal sewage sludge
By using black soldier fly larvae to biotransform urban sewage sludge and wheat bran as a co-substrate, the potential environmental risks and insufficient resource utilization caused by improper sludge treatment have been solved. This has achieved the harmlessness and resource utilization of sludge, and improved the growth performance of black soldier fly larvae and the bioavailability of sludge.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- LANZHOU JIAOTONG UNIV
- Filing Date
- 2025-01-16
- Publication Date
- 2026-07-17
AI Technical Summary
Urban sewage sludge contains toxic and harmful substances, and improper treatment can pose potential risks to the environment, while its resource utilization value is not fully realized.
A method for biotransforming urban sewage sludge using black soldier fly larvae was adopted. The sludge was granulated and different proportions of wheat bran were added as a co-matrix. The feeding and digestive functions of the black soldier fly larvae were used to degrade organic matter, creating an environment conducive to the survival of the insects. The insect bodies and excrement were then harvested as raw materials for organic fertilizer.
This approach achieves the harmless and resource-based utilization of sludge, improves the growth performance of black soldier fly larvae, and enhances the bioavailability and reduction rate of sludge.