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Method for producing methane by utilizing waste fresh tobacco leaves

A technology of fresh tobacco leaves and biogas, which is applied in waste fuel, fermentation and other directions, can solve the problems of low reuse rate of waste fresh leaves, spread of tobacco diseases, and long time required, and achieves long gas production cycle, high gas production rate, and reduced gas production. The effect of cost of living

Inactive Publication Date: 2015-03-25
江西省烟草公司吉安市公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current general treatment method for discarded fresh tobacco leaves is to build a centralized treatment pond for every 300 to 500 acres of tobacco leaf planting area, pile discarded fresh tobacco leaves into the pond and bury them with lime, but natural tobacco contains a large amount of alkaloids (92%-95 % is nicotine), it is difficult to degrade, and it takes a long time to process by this method, which is easy to cause environmental pollution and the spread of tobacco diseases, and the recycling rate of discarded fresh leaves is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Take a household biogas digester with a volume of 8m3 as an example:

[0022] Step 1: Cut the collected discarded fresh tobacco leaf raw materials into lengths of about 5-10 cm with a guillotine.

[0023] Step 2: The volume of a 1m3 biogas digester can accommodate 260kg of mixed raw materials of discarded fresh tobacco leaves and first cow dung. According to the calculation of 85% of the volume fed to the biogas digester, the total amount of raw materials that can be accommodated is 1768kg, of which 1683kg of discarded fresh tobacco leaves are needed. 85kg of fresh cow dung.

[0024] Step 3: Put the discarded fresh tobacco leaves and fresh cow dung prepared in the second step into the anaerobic reactor evenly in layers, one layer of discarded fresh tobacco leaves and one layer of fresh cow dung, and step on and compact them layer by layer.

[0025] Step 4: After the feeding is completed, stack retting under natural conditions for 3 days.

[0026] Step 5: After stack r...

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PUM

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Abstract

The invention discloses a method for producing methane by utilizing waste fresh tobacco leaves. The method is characterized by comprising the following steps: pretreating the waste fresh tobacco leaves, feeding the pretreated waste fresh tobacco leaves an anaerobic reactor together with a certain proportion of fresh cow dung, and performing anaerobic fermentation at natural temperature to produce methane. The method concretely comprises the following steps: a, crushing raw materials; b, regulating the carbon-nitrogen ratio of fermented raw materials; c, performing stack composting in a pond; d, inoculating; e, regulating TS concentration; f, regulating pH value; and g, fermenting under a closed environment. The conversion of waste fresh tobacco leaves to clean energy can be realized by performing anaerobic fermentation treatment on the waste fresh tobacco leaves, higher methane production rate can be obtained, no secondary pollution exists in the production of methane, the method provides a new technical path for the innocent treatment and recycling of the waste fresh tobacco leaves resources, and the ecological environment of a tobacco region can be effectively protected.

Description

technical field [0001] The invention relates to a method for reusing discarded fresh tobacco leaves, and belongs to the technical field of waste resource treatment. Background technique [0002] Unsuitable flue-cured tobacco leaves refer to discarded fresh tobacco leaves that need to be disposed of in the field, with stunted structure, rigid structure, and low industrial availability. With the vigorous promotion of tobacco leaf structure optimization policies in recent years, the field treatment of unsuitable tobacco leaves has been fully implemented in various tobacco leaf producing areas across the country, and a large amount of discarded fresh tobacco leaves have been generated during the treatment of unsuitable tobacco leaves. The current general treatment method for discarded fresh tobacco leaves is to build a centralized treatment pond for every 300 to 500 acres of tobacco leaf planting area, pile discarded fresh tobacco leaves into the pond and bury them with lime, bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P5/02
CPCY02E50/30
Inventor 朱红根李亚纯朱军平段史江邹昌淳
Owner 江西省烟草公司吉安市公司
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