A method for promoting methanogenesis by anaerobic digestion of sludge using β-cyclodextrin
By using β-cyclodextrin during the anaerobic digestion of sludge, the problems of low hydrolysis efficiency and low methane yield of difficult-to-degrade organic matter are solved, and the efficiency of converting organic matter into methane in sludge has been significantly improved, and the cumulative methane production has increased by more than 60%.
CN118206260BActive Publication Date: 2025-02-28HARBIN INST OF TECH
Patent Information
- Application Number
- CN202410448609.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-15
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2044-04-15
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Figure CN118206260B_ABST
Abstract
A method for promoting methane production by anaerobic digestion of sludge using β-cyclodextrin, which belongs to the technical field of anaerobic digestion. The purpose of the present invention is to solve the problems of low hydrolysis efficiency of refractory organic matter and low yield of energy-type product methane in the process of anaerobic digestion of excess sludge. The present invention provides a method for promoting methane production by anaerobic digestion of sludge using β-cyclodextrin, and uses β-cyclodextrin to enhance the production of biological methane in the process of anaerobic digestion of excess sludge. The efficiency of β-cyclodextrin in promoting the conversion of organic matter in sludge into methane gradually increases as the dosage of β-cyclodextrin increases from 50 mg / g to 300 mg / g. When the dosage of β-cyclodextrin is 300 mg / g, the cumulative methane production of the experimental group increases by more than 60% compared with that of the control group. The present invention can obtain a method for promoting methane production by anaerobic digestion of sludge using β-cyclodextrin.
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Citation Information
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