Method for preparing organic fertilizer through tobacco extracting solution

A technology of tobacco extract and organic fertilizer, applied in application, fertilization equipment, fertilizer mixture, etc., can solve the problems of low resource utilization, unsatisfactory treatment effect, unbalanced discharge of extract, etc., and achieve improved physical and chemical properties and biological activity , increase and update soil organic matter, and promote the effect of microbial reproduction

Inactive Publication Date: 2013-02-13
SHANGHAI JUHUA TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The disadvantages of this method are: (1) The investment is too large and the operating cost is high
Generally, the investment of 10,000 tons/year paper-making tobacco flake sewage treatment station is more than 10 million yuan, and the operating cost is relatively high. The cost of sewage treatment per ton is more than 6 yuan. In the entire sewage load, the extract accounts for

Method used

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  • Method for preparing organic fertilizer through tobacco extracting solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Take 100kg of discarded flue-cured tobacco stems from Shanghai for this experiment.

[0034]Extraction: Put 100kg of tobacco stems into a stirring tank, inject 600kg (60°C) hot water into the tank, keep stirring for 2 hours, and then pump out 450kg of the extract.

[0035] Purification: Pump 450kg of the extract into a decanter centrifuge for sedimentation and centrifugation, and separate about 0.3kg of solid slag.

[0036] Concentration: pump 450kg of the purified extract into a negative pressure single-effect concentrator, and concentrate at a temperature of 60°C. After concentrating for 2 hours, 120 kg of tobacco stem liquid was produced, and the concentration of the detected stem liquid was 39%.

[0037] Fermentation: The concentrated stalk liquid is sterilized, then pumped into the biochemical reactor, and at the same time, 0.2kg of the prepared microbial agent is mixed into the stalk liquid. The pH value was adjusted to 6.5, the fermentation temperature was 50°C...

Embodiment 2

[0040] Take 150 kg of shredded stems of waste flue-cured tobacco from Shanghai for this test.

[0041] Extraction: Put 150kg of shredded stems into a mixing tank, pour 1500kg (70°C) hot water into the tank, heat and stir for 30 minutes, then squeeze dry with a single-screw juicer to obtain 1100kg of extract.

[0042] Purification: pump 1100kg of extract into a decanter centrifuge for sedimentation and purification, and separate 0.8kg of solid slag.

[0043] Concentration: pump 1100kg of purified extract into a negative pressure single-effect concentrator, and concentrate at a temperature of 60°C. After concentrating for 4 hours, 200 kg of tobacco stem liquid is produced, and the concentration of the detected stem liquid is 45%.

[0044] Fermentation: The concentrated stalk liquid is then pumped into the biochemical reactor, and at the same time, 2kg of the prepared microbial agent is mixed into the stalk liquid. The pH value was adjusted to 7, the fermentation temperature wa...

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Abstract

The invention discloses a method for preparing organic fertilizer through tobacco solution. By adopting the method, the tobacco extracting solution can be subjected to waste recovery and prepared into organic fertilizer, and the method for processing the extracting solution by degrading through a large number of devices at present is replaced. According to the method, a microbial agent is added to the tobacco extracting solution for fermenting, and the prepared organic fertilizer includes a plurality of organic acid, peptides and rich nutrient elements such as nitrogen, phosphorus and potassium, so that the organic fertilizer can be used for providing comprehensive nutrition to crops, and the plant can be absorbed well; and furthermore, the organic matters in the soil can be increased and updated, so that the microbial proliferation can be promoted, and the physicochemical property and biological activity of the oil can be improved. The tobacco extracting solution includes nicotine which can be used for disinfesting, and the nicotine is remained in the finally obtained organic fertilizer during the processing of the method, so that the organic fertilizer has the effect of disinfesting.

Description

technical field [0001] The invention relates to the field of organic fertilizers, in particular to a method for manufacturing organic fertilizers using tobacco extracts. Background technique [0002] my country is the largest producer of tobacco leaves and cigarettes in the world, and a large amount of waste is produced in the tobacco production process, which mainly includes waste tobacco stems, waste tobacco leaves, tobacco residues, tobacco stalks, and tobacco dust. Tobacco stems and tobacco powder contain a large amount of N, P, K, trace elements and organic matter, which are very valuable agricultural resources. Rational use of this resource is an important task for the sustainable development of agriculture. [0003] Relevant data show that only the organic compounds in tobacco stems account for about 90%-95% (accounting for the total dry matter), and the mineral elements are 5%-10%; the nitrogen content is 0.5%-1.2%, and the phosphorus content is 0.1%- 0.25%, potassi...

Claims

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Application Information

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IPC IPC(8): C05G3/02C05G3/04C05G3/60C05G3/80
Inventor 王绍宗段煌王鸿铭
Owner SHANGHAI JUHUA TECH
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