Method for improving anaerobic dry fermentation gas production characteristic by using biogas residue hydrothermal product
An anaerobic dry and dry fermentation technology, applied in fermentation, waste fuel, biological sludge treatment, etc., can solve the problems of low biogas residue utilization rate, low gas production rate, long reaction time, etc., and accelerate the accumulation of methanogenic bacteria , Improve gas production efficiency, strengthen the effect of gas production performance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0022] (1) The residue discharged after continuous anaerobic dry fermentation of 300g of straw and cow dung mixed raw materials is separated from solid and liquid to obtain biogas residue and biogas slurry. The moisture content of biogas residue is 20%, and the moisture content of biogas slurry is 85%.
[0023] (2) All the biogas slurry is returned to the reactor, and the biogas residue is subjected to hydrothermal carbonization treatment, the hydrothermal temperature is 150°C, and the reaction time is 3 hours.
[0024] (3) After hydrothermal carbonization of biogas residues, hydrothermal liquid and hydrothermal charcoal are obtained. The hydrothermal liquid is collected in the spray tank, and the pH value of the hydrothermal liquid is adjusted to 6.5. The continuous anaerobic dry fermentation reaction is carried out through peristaltic pumps and pipelines. Spray the fermented material in the container.
[0025] (4) Add 4g / L hydrothermal charcoal and mix it with straw and cow ...
Embodiment 2
[0028] (1) The residue discharged after continuous anaerobic dry fermentation of 300g of straw and cow dung mixed raw materials is separated from solid and liquid to obtain biogas residue and biogas slurry. The moisture content of biogas residue is 20%, and the moisture content of biogas slurry is 85%.
[0029] (2) The biogas slurry was used as the inoculum and all returned to the reactor, and the biogas residue was subjected to hydrothermal carbonization treatment, the hydrothermal temperature was 150°C, and the reaction time was 4 hours.
[0030] (3) After hydrothermal carbonization of biogas residues, hydrothermal liquid and hydrothermal charcoal are obtained. The hydrothermal liquid is collected in the spray tank, and the pH value of the hydrothermal liquid is adjusted to 7.0, and the continuous anaerobic dry fermentation reactor is fermented through the pipeline. The material is sprayed.
[0031] (4) Add 6g / L hydrothermal charcoal and mix it with straw and cow dung raw ma...
Embodiment 3
[0034] (1) The residue discharged after continuous anaerobic dry fermentation of 300g of straw and cow dung mixed raw materials is separated from solid and liquid to obtain biogas residue and biogas slurry. The moisture content of biogas residue is 20%, and the moisture content of biogas slurry is 85%.
[0035] (2) All the biogas slurry is returned to the reactor, and the biogas residue is subjected to hydrothermal carbonization treatment, the hydrothermal temperature is 200°C, and the reaction time is 4h.
[0036] (3) After hydrothermal carbonization of biogas residues, hydrothermal liquid and hydrothermal charcoal are obtained. The hydrothermal liquid is collected in the spray tank, and the pH value of the hydrothermal liquid is adjusted to 7.5. The continuous anaerobic dry fermentation reactor is fermented through the pipeline. The material is sprayed.
[0037] (4) Add 8g / L hydrothermal charcoal and mix it with straw and cow dung raw materials and add it into the reactor to...
PUM
Login to View More Abstract
Description
Claims
Application Information
Login to View More