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Turmeric saponin extraction method without waste emission

An extraction method and technology of turmeric saponin, applied in the directions of inorganic fertilizers, steroids, organic chemistry, etc., can solve the problems of high treatment cost, dust pollution, waste of resources, etc., and reduce the difficulty of wastewater treatment and the loss of gasoline volatilization. , The effect of saving cleaning water

Inactive Publication Date: 2014-06-11
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This process has the advantages of simple operation and low production cost, but there are many problems in this traditional process:
This kind of wastewater belongs to the typical "three high" wastewater with high acidity, high salt and high organic pollutants. It is difficult to treat, the cost of treatment is high, and the pollution is serious. It has become a bottleneck for the healthy development of the turmeric industry.
[0007]2. The acid liquid produced during the acid hydrolysis process of this process contains a large amount of SO42- ions, which is difficult to Recycling and direct discharge not only cause serious environmental pollution, but also cause serious waste of resources
[0008]3. A large amount of saponin extraction residue is produced, most enterprises dump it as waste, and some enterprises join coal-fired incineration, but the problems of dust pollution and flue blockage are serious

Method used

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  • Turmeric saponin extraction method without waste emission
  • Turmeric saponin extraction method without waste emission
  • Turmeric saponin extraction method without waste emission

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1 A method for extracting turmeric saponin without waste discharge, comprising the following steps, (for its technical process see figure 1 ） :

[0032] 1) Cleaning: 135Kg of fresh turmeric is transported to the production line. First, the silt mixed with turmeric is screened out by a drum screen machine, and then the turmeric is washed with water. After the mud water produced is treated by sedimentation, the bottom sediment mud, which accounts for 25% of the cleaning water consumption, is reduced to the paddy field , and the remaining 75% supernatant returns to the ginger cleaning process.

[0033] 2) Crushing: The cleaned turmeric directly enters the crusher for crushing, and the diameter of the screen used is between 60-100 mesh.

[0034] 3) Fermentation: The crushed turmeric material enters the fermentation tank, and steam is passed into the fermentation tank to make the temperature reach 43 。 C, kept at a constant temperature for 35.5 hours to obtain a...

Embodiment 2

[0040] Example 2 A method for extracting turmeric saponin without waste discharge, comprising the following steps, (for its technical process see figure 1 ):

[0041] 1) Cleaning: 67.5 tons of fresh turmeric is transported to the production line. First, the silt mixed with turmeric is screened out by a drum screen machine, and then the turmeric is washed with water. After the mud water is processed by sedimentation, the bottom sediment mud, which accounts for 25% of the cleaning water consumption, is reduced. paddy fields, and the remaining 75% supernatant returns to the turmeric cleaning process.

[0042] 2) Crushing: The cleaned turmeric directly enters the crusher for crushing, and the diameter of the screen used is between 60-100 mesh.

[0043] 3) Fermentation: The crushed turmeric material enters the fermentation tank, and steam is passed into the fermentation tank to make the temperature reach 45 。 C, kept at a constant temperature for 36 hours to obtain a fermented ...

Embodiment 3

[0049] Example 3 A method for extracting turmeric saponin without waste discharge, comprising the following steps, (for its technical process see figure 1 ） :

[0050] 1) Cleaning: 135 tons of fresh turmeric is transported to the production line. First, the silt mixed with turmeric is screened out by a drum screen machine, and then the turmeric is washed with water. After the muddy water is processed by sedimentation, the bottom sediment accounts for 25% of the cleaning water consumption. The mud is reduced to the paddy field, and the remaining 75% of the supernatant is returned to the turmeric cleaning process.

[0051] 2) Crushing: The cleaned turmeric directly enters the crusher for crushing, and the diameter of the screen used is between 60-100 mesh.

[0052] 3) Fermentation: The crushed turmeric material enters the fermentation tank, and steam is passed into the fermentation tank to make the temperature reach 48 。 After C, the temperature was maintained for 36.5 h ...

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Abstract

The invention discloses a turmeric saponin extraction method without waste emission, which comprises the following steps: 1) cleaning the turmeric dug out of farmland with clear water; performing purification treatment of the muddy water after the cleaning to separate mud from water; and returning the mud to the farmland, and circularly cleaning the turmeric with the water until the turmeric is clean; 2) grinding the clean turmeric and performing fermentation, hydrolysis, plate-frame pressure filtration, drying and hydrolysis; 3) adding gasoline into the hydrolysate to extract saponin residue; 4) performing concentration treatment on the SO4<2-> acid liquid after the plate-frame pressure filtration, applying the product to produce potassium sulfate fertilizer, and circularly applying the water to the hydrolysis of the fermented product; and 5) performing concentration, crystallization, diaphragm pressure filtration and drying of the solution after saponin residue extraction in the step 3) to obtain the saponin. The method reduces pollutants from the source and realizes treatment and resource utilization of the pollutants which cannot be reduced from the source in various ways.

Description

technical field [0001] The invention relates to a new method for extracting turmeric saponin, in particular to a method for extracting turmeric saponin without waste discharge. [0002] Background technique [0003] Turmeric saponin is not only an important raw material for the synthesis of steroidal corticosteroids, steroidal anti-inflammatory drugs and family planning drugs, but also the most important pharmaceutical raw material for various drugs in the pharmaceutical industry. Moreover, extracting saponin from natural plants and processing steroid hormone drugs have the characteristics of renewable resources, simple synthesis process, low drug cost, and less toxic and side effects. The market prospect is very broad. my country is a major producer of turmeric saponin. More than 60 counties (cities) in 11 provinces (cities), including Hubei, Shaanxi, Henan, Sichuan, Chongqing, Hunan, Jiangxi, Zhejiang, Guizhou, Fujian, and Yunnan, grow turmeric. Especially in Shaanxi and...

Claims

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Application Information

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IPC IPC(8): C07J71/00C05D1/02
Inventor 呼世斌韩玉婕
Owner NORTHWEST A & F UNIV
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