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Method for producing alcohol by aid of yellow ginger hydrolysis waste water

A waste water and alcohol technology, applied in the direction of fermentation, etc., can solve the problems of pollution degree, ecological environment damage, environmental pollution, etc., and achieve the effects of high wine yield, reduced fermentation loss, and simple process methods

Inactive Publication Date: 2015-11-25
BAIHE YONGHONG CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are serious problems in the production of saponin: the waste liquid discharged from the hydrolysis and washing of turmeric contains a large amount of organic matter and inorganic acids, which has caused great damage to the ecological environment, and the degree of pollution is second only to that of paper-making enterprises.
Although many saponin factories have established sewage treatment facilities under the supervision of the local environmental protection department, the acid in the waste water can be neutralized by adding lime and mixing, but for the super high COD value in the waste water, the existing ones can make the soap The technology accepted by the factory is powerless
[0003] The biggest pollutant of saponin production enterprises is hydrolysis wastewater. However, the wastewater after hydrolysis of turmeric contains a lot of sugar. Discarding it will cause waste of resources and pollute the environment. It is a pity.

Method used

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  • Method for producing alcohol by aid of yellow ginger hydrolysis waste water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Using turmeric hydrolysis wastewater as raw material, use the following steps to produce alcohol

[0022] 1. Neutralization

[0023] The general pH value of turmeric hydrolysis wastewater is about 1, which cannot meet the needs of alcohol production. First, adjust the pH value of wastewater to 2-3 through limestone, and then use Ca(OH) 2 Adjust the pH value to 3.8 and enter the next step.

[0024] 2. Fermentation

[0025] Add yeast to the wastewater that has been neutralized to meet the requirements, and use the method of semi-continuous fermentation of serial tanks to ferment. The method is to add active dry yeast 1kg / m3 to the yeast activation tank 3 , urea 4kg / m 3 , penicillin (3.2 million units) plus 1.5g / m 3 , the active dry yeast is activated (rehydrated) in warm water at 38-40°C for 15-20 minutes and immediately put into the distiller's tank, and then add the turmeric hydrolyzed wastewater that has been cooled and adjusted the pH value to the distiller's tank...

Embodiment 2

[0029] Using turmeric hydrolysis wastewater as raw material, use the following steps to produce alcohol

[0030] 1. Neutralization

[0031] The PH value of turmeric hydrolysis wastewater is generally about 1, which cannot meet the needs of alcohol production. First, adjust the PH value of the wastewater to 2-3 through limestone, and then adjust the PH value to 4 with NaOH, and enter the next step.

[0032] 2. Fermentation

[0033] The wastewater that has been neutralized to meet the requirements plus yeast is fermented by the method of semi-continuous fermentation of serial tanks. The method is to add active dry yeast 1kg / m3 to the yeast activation tank 3 , urea 4kg / m 3 , penicillin (3.2 million units) plus 3g / m 3 , the active dry yeast is activated (rehydrated) in warm water at 38-40°C for 15-20 minutes and immediately put into the distiller's tank, and then add the turmeric hydrolyzed wastewater that has been cooled and adjusted the pH value to the distiller's tank; The ...

Embodiment 3

[0037] Using turmeric hydrolysis wastewater as raw material, use the following steps to produce alcohol

[0038] 1. Neutralization

[0039] The general pH value of turmeric hydrolysis wastewater is about 1, which cannot meet the needs of alcohol production. First, adjust the pH value of wastewater to 2-3 through limestone, and then use Ca(oH) 2 Adjust the pH value to 4.2 and enter the next step.

[0040] 2. Fermentation

[0041] The wastewater that has been neutralized to meet the requirements plus yeast is fermented by the method of semi-continuous fermentation of serial tanks. The method is to add active dry yeast 1kg / m3 to the yeast activation tank 3 , urea 2kg / m 3, penicillin (3.2 million units) plus 3g / m 3 , the active dry yeast is activated (rehydrated) in warm water at 38-40°C for 15-20 minutes and immediately put into the distiller's tank, and then add the turmeric hydrolyzed wastewater that has been cooled and adjusted the pH value to the distiller's tank; The di...

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Abstract

The invention relates to a method for producing alcohol by the aid of yellow ginger hydrolysis waste water. The method includes neutralizing the yellow ginger hydrolysis waste water by the aid of limestone so as to regulate a PH (potential of hydrogen) value of the waste water until the PH value reaches 2-3; regulating the PH value by the aid of alkali Ca(OH)<2> or NaOH until the PH value reaches 3.8-4.5; fermenting the yellow ginger hydrolysis waste water by the aid of yeast and distilling the yellow ginger hydrolysis waste water to obtain the alcohol. The method has the advantages that the yellow ginger hydrolysis waste water generated in hydrolysate producing procedures in yellow ginger processing enterprises is comprehensively utilized by the aid of the method for producing the alcohol by the aid of the yellow ginger hydrolysis waste water and is used as a raw material, accordingly, the high-purity alcohol can be produced, the COD (chemical oxygen demand) content of the yellow ginger hydrolysis waste water can be greatly reduced, the technological method is simple, and the alcohol produced from the waste water is high in yield.

Description

technical field [0001] The invention belongs to a method for comprehensive utilization and treatment of waste water produced in the production process of hydrolyzate in a turmeric processing enterprise, and specifically relates to a method for producing alcohol by using turmeric hydrolyzed waste water. Background technique [0002] my country's development and utilization of turmeric resources began in the 1950s. After years of development, my country's steroid hormone drug industry has begun to take shape. The national saponin and diene production enterprises have reached about 200, and large and medium-sized hormone pharmaceutical factories have reached 100. More than 100 kinds of drugs have been synthesized by using diosgenin, and the annual output value accounts for 4% of the total output value of the pharmaceutical industry, becoming an important part of my country's pharmaceutical industry system. However, there are serious problems in the production of saponin: the was...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P7/08
Inventor 陈永宏孙辉学
Owner BAIHE YONGHONG CHEM CO LTD
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