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A method for degrading nicotine content in tobacco waste by using high-temperature composting

A technology of tobacco waste and high-temperature composting, which is applied in the preparation and application of fertilizer mixtures and organic fertilizers. It can solve the problems of long decomposing time, inability to return directly to the field, and inability to be suitable for soil, etc., and achieves fast degradation and easy operation. , the effect of simple operation

Inactive Publication Date: 2018-03-23
HUNAN AGRICULTURAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, tobacco waste is alkaline, has a high C / N ratio, and has strong phytotoxicity, so it cannot be directly applied to the soil as an organic fertilizer.
Foreign studies on the use of tobacco waste fertilizers mainly focus on the impact of tobacco waste on the soil; domestic research on tobacco waste only discusses the role of biological agents in the composting process of tobacco waste, and has not yet carried out the material ratio Aspects of research, and the decomposing time is too long
The applicant mixed the tobacco waste with livestock and poultry manure or chemical nitrogen fertilizers such as urea and ammonium sulfate in a certain proportion, and added a certain amount of calcium magnesium phosphate fertilizer or phosphate rock powder for composting and fermentation, effectively solving the problem of nicotine in tobacco waste. However, there is no relevant report about the problem that it cannot be directly returned to the field because of its biological toxicity.

Method used

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  • A method for degrading nicotine content in tobacco waste by using high-temperature composting
  • A method for degrading nicotine content in tobacco waste by using high-temperature composting
  • A method for degrading nicotine content in tobacco waste by using high-temperature composting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1 Effect of Chemical Nitrogen Fertilizer on Nicotine Degradation Rate in High Temperature Composting of Tobacco Waste

[0025] The experiment was carried out at the teaching and practice base of the Department of Agricultural Resources of Hunan Agricultural University, using tobacco waste as compost raw materials. Tobacco waste comes from Liuyang Tianfu Rebaking Factory. Before high-temperature composting, the tobacco waste is dried, crushed, and passed through a 10-mesh sieve. The moisture, total carbon and total nitrogen contents of tobacco waste were 15.3%, 53.4% ​​and 2.13%, respectively, and the C / N ratio was 25.07.

[0026] Three treatments were set up in the experiment, treatment 1: tobacco waste; treatment 2: adjusting the C / N ratio of tobacco waste with urea = 20; treatment 3: adjusting the C / N ratio of tobacco waste with ammonium sulfate = 20. Adjust the moisture content to 65% before composting and fermentation. After each treatment is stirred and mi...

Embodiment 2

[0030] Example 2 Effect of chicken manure addition on nicotine degradation rate in high temperature composting of tobacco waste

[0031] The experiment was carried out at the teaching and practice base of the Agricultural Resources Department of Hunan Agricultural University, using tobacco waste and chicken manure as compost materials. Tobacco waste comes from Liuyang Tianfu Rebaking Factory. Before high-temperature composting, the tobacco waste is dried, crushed, and passed through a 10-mesh sieve. The moisture, total carbon and total nitrogen contents of tobacco waste were 15.3%, 53.4% ​​and 2.13%, respectively, and the C / N ratio was 25.07. The moisture, total carbon and total nitrogen contents of chicken manure were 16.4%, 50.2% and 2.91%, respectively, and the C / N ratio was 17.25.

[0032] Three treatments were set up in the experiment, treatment 1: tobacco waste; treatment 2: adjusting the C / N ratio of tobacco waste with chicken manure = 23; treatment 3: adjusting the C / ...

Embodiment 3

[0036]Example 3 Effect of calcium magnesium phosphate fertilizer and phosphate rock powder on nicotine degradation rate in high temperature composting of tobacco waste

[0037] The experiment was carried out at the teaching and practice base of the Agricultural Resources Department of Hunan Agricultural University, using tobacco waste, chicken manure calcium magnesium phosphate fertilizer and phosphate rock powder as compost materials. Tobacco waste comes from Liuyang Tianfu Rebaking Factory. Before high-temperature composting, the tobacco waste is dried, crushed, and passed through a 10-mesh sieve. The moisture, total carbon and total nitrogen contents of tobacco waste were 15.3%, 53.4% ​​and 2.13%, respectively, and the C / N ratio was 25.07. The moisture, total carbon and total nitrogen contents of chicken manure were 16.4%, 50.2% and 2.91%, respectively, and the C / N ratio was 17.25.

[0038] Three treatments were set up in the experiment, treatment 1: tobacco waste; treatme...

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Abstract

The invention discloses a method for reducing nicotine content in tobacco waste by using high temperature composting. The tobacco waste is smashed and then is mixed with livestock excrement, urea or ammonium sulfate; a calcium magnesia phosphate fertilizer or powdered rock phosphate is added, and high temperature composting is performed by a pile turning or forced ventilation way, so that the nicotine content in the tobacco waste can be reduced by over 90 percent. The method is simple and practical, is capable of achieving the aim of quickly treating the tobacco waste and meanwhile solving the problem that the tobacco waste cannot be directly returned to the field due to the biotoxicity of nicotine in the tobacco waste, and is suitable for being popularized and used in organic fertilizer factories and the vast rural areas.

Description

technical field [0001] The invention belongs to the technical field of biological composting, and in particular relates to a method for degrading nicotine content in tobacco waste by using high-temperature composting. Background technique [0002] my country is the country with the largest tobacco cultivation and output in the world, with an annual output of 4.5-5 million tons of tobacco leaves, of which nearly 25% of tobacco leaves, tobacco waste and other leftovers are discarded. Waste tobacco leaves and leftovers are the by-products of cigarette production, rich in various bio-organic components and secondary metabolites with production and application value, and also contain a large amount of nutrients such as nitrogen, phosphorus, potassium and trace elements, which have high utilization value . The current utilization methods are mainly used in the production of pesticides, coenzyme Q10 and other drugs, protein extraction, feed additives, fertilizers, etc., but there ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G1/00C05F17/00
CPCY02W30/40
Inventor 谢桂先刘强何云龙荣湘民宋海星彭建伟张玉平张振华
Owner HUNAN AGRICULTURAL UNIV
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