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A method for producing biogas from camellia oleifera husk

A technology of Camellia oleifera husk and biogas, which is applied in the field of forestry waste resource utilization, can solve the problems of waste of resources and achieve the effects of increased gas production, large economic benefits, and accelerated reproduction

Active Publication Date: 2022-05-10
GUANGXI FORESTRY RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, camellia oleifera husks are usually dried and deseed from camellia oleifera fruit, which are treated as waste or used as fuel for heating in winter, and have not been well developed and utilized, resulting in a great waste of resources.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of method utilizing camellia oleifera husk to produce biogas, comprises the steps:

[0026] (1) Powder 15 kg of Camellia oleifera husk, add 40 g of urea, 3 kg of molasses, 5 kg of tea dregs, add water and mix to 80 kg, mix evenly to obtain a mixture;

[0027] (2) Add the mixed liquid to the biogas fermentation tank, and then add the primary fermentation bacteria consisting of EM bacteria and Klebsiella oxytoca with a mass ratio of 2:1, the amount of which is 0.5% of the mixed liquid mass, anaerobic fermentation After 7 days, the pH was reduced to 4.5, and the pH was adjusted to 6 with quicklime, and the secondary fermentation bacteria composed of Methanobacter soxleyi, Methanobacterium formate, and Methanobacterium ruminant were added in a mass ratio of 3:2:2, and the addition amount was mixed liquor 0.7% of the mass, the biogas produced was collected, and the anaerobic fermentation ended after 14 days.

[0028] (3) The waste residue produced after fermentation ...

Embodiment 2

[0031] A kind of method utilizing camellia oleifera husk to produce biogas, comprises the steps:

[0032] (1) Powder 20 kg of Camellia oleifera husk, add 50 g of urea, 5 kg of molasses, 8 kg of tea dregs, add water and mix to 100 kg, mix evenly to obtain a mixture;

[0033] (2) Add the mixed liquid to the biogas fermentation tank, and then add the primary fermentation bacteria composed of EM bacteria and Klebsiella oxytoca with a mass ratio of 3:1, the amount of which is 0.3% of the mixed liquid mass, anaerobic fermentation After 8 days, the pH was reduced to 5, and the pH was adjusted to 7 with quicklime, and the secondary fermentation bacteria composed of Methanobacter soxleyi, Methanobacterium formate, and Methanobacterium ruminant were added in a mass ratio of 5:3:1, and the addition amount was mixed liquor 1.0% of the mass, the biogas generated was collected, and the anaerobic fermentation ended after 15 days.

[0034] (3) The waste residue produced after fermentation is...

Embodiment 3

[0037] A kind of method utilizing camellia oleifera husk to produce biogas, comprises the steps:

[0038] (1) Powder 10 kg of Camellia oleifera husk, add 40 g of urea, 4 kg of molasses, 6 kg of tea dregs, add water and mix to 60 kg, mix well to obtain a mixture;

[0039] (2) Add the mixed liquid to the biogas fermentation tank, and then add the primary fermentation bacteria composed of EM bacteria and Klebsiella oxytoca with a mass ratio of 2:1, the amount of which is 0.8% of the mixed liquid mass, anaerobic fermentation After 6 days, the pH was reduced to 4, and the pH was adjusted to 6 with quicklime, and the secondary fermentation bacteria composed of Methanobacter soxleyi, Methanobacterium formate, and Methanobacterium ruminant were added in a mass ratio of 4:2:1, and the addition amount was mixed liquor 0.5% of the mass, the biogas produced was collected, and the anaerobic fermentation ended after 14 days.

[0040] (3) The waste residue produced after fermentation is fil...

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PUM

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Abstract

The invention discloses a method for producing biogas by using camellia oleifera husk, which is to grind 10-20 kg of camellia oleifera husk into powder, add 30-50 grams of urea, 3-5 kg ​​of molasses, and 5-10 kg of tea dregs, add water and mix to 60 ‑100 kg, mixed evenly to obtain a mixed solution; put the mixed solution into a biogas fermenter, then add the primary fermentation bacteria composed of EM bacteria and Klebsiella oxytocin, and anaerobically ferment for 6‑8 days until the pH is reduced to 4 ‑5, adjust the pH to 6‑7, add the secondary fermentation bacteria composed of Methanobacterium soxleyi, Methanobacterium formate, and Methanobacterium ruminante, start to collect the generated biogas, and finish the anaerobic fermentation after 12‑16 days. The invention uses the forestry waste camellia oleifera husk as the main raw material to produce biogas through anaerobic fermentation, the biogas is used as a new energy fuel, the fermented biogas slurry is used as foliage fertilizer, and the biogas residue is used as organic fertilizer, so as to realize the complete recovery of camellia oleifera husk. The utilization of resources has good economic benefits, social benefits and ecological benefits, and provides an effective way to build an ecological new countryside.

Description

technical field [0001] The invention relates to the technical field of utilization of forestry waste resources, in particular to a method for producing biogas by using camellia oleifera husks. Background technique [0002] Camellia oleifera, also known as tea tree and camellia oleifera, is one of the four major woody edible oil source tree species in the world (the remaining three are coconut, olive and oil palm), and one of the four major woody oil plants in my country (the remaining three are black cypress, tung tree and walnut) are perennial shrubs or trees with a history of more than two thousand years of cultivation and utilization. In my country, its main production areas are the south and southwest, and mainly concentrated in Hunan, Guangxi, Guangdong and other places, accounting for 83.2% of the total area of ​​the country. It is a unique pure natural high-grade oil in China. In recent years, the planting area and output of camellia oleifera have been increasing year...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P39/00C12P5/02C07H13/08C07H1/08C05G1/00C05F17/20C05F17/50C12R1/22
CPCC12P39/00C12P5/023C07H13/08C07H1/08C05C9/00C05F5/002Y02W30/40Y02E50/30
Inventor 杨漓马锦林谷瑶陈国臣
Owner GUANGXI FORESTRY RES INST