Treatment method for reducing amount and pollution of yellow liquor of Maotai-flavor wine

A treatment method, the technology of Maotai-flavored wine, applied in the field of Maotai-flavored wine yellow water reduction and pollution reduction treatment, can solve the problems of excessive water quality, impact of sewage treatment system, unsteady output speed and output, etc., to reduce workload and difficulty, ease the impact of water quality, and facilitate the effect of pollution treatment

Pending Publication Date: 2021-11-26
BEIJING HUIHENG ENVIRONMENTAL PROTECTION ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology helps prevent odor from being released during production or use after cleanliness procedures such as washing with grayish liquids for better clarity on waste materials. By reducing the amounts of liquid that are used without losing flavors it becomes easier to dispose off any remaining impurities like dirt particles. Additionally, this method also lowers the levels of harmful substances present in grey waters while improving their purification efficiency. Overall, these technical results help improve environmental safety standards and minimizing damage caused through disposal processes.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the efficiency and effectiveness of treating liquid wastes such as greenhouse gas emissions into clean waters due to their low concentrated content compared to traditional methods like evaporation ponds. Current disposal techniques involve incurring significant expenses associated with these processes.

Method used

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  • Treatment method for reducing amount and pollution of yellow liquor of Maotai-flavor wine
  • Treatment method for reducing amount and pollution of yellow liquor of Maotai-flavor wine
  • Treatment method for reducing amount and pollution of yellow liquor of Maotai-flavor wine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Taking 300L yellow water as an example, the above system is used for processing. During distillation, the distillation method is to use 172°C hot steam to pass into the distillation pot of primary yellow water, and the organic matter in the yellow water is azeotropically brought out by the hot steam. ; The distillation product is cooled, collected, and recycled. The pressure of the hot steam is 0.7MPa. 3 The speed of / s continues to feed hot steam, and the time of hot steam feeding lasts for 35 minutes.

[0046] After distillation, the total amount of secondary yellow water collected is about 180L, and the reduction of yellow water wastewater reaches 40%. Sampling and analysis of COD changes in the secondary yellow water showed that the COD concentration decreased from 334,000mg / L to 267,500mg / L, the COD concentration reduction rate reached 19.9%, the total amount of COD decreased from 100.2kg to 45.4kg, and the total COD reduction amount reached 54.6%. At the same

Embodiment 2

[0048] Taking 300L yellow water as an example, the above system is used for processing. During distillation, the distillation method is to use 170°C hot steam to pass into the distillation pot of primary yellow water, and the organic matter in the yellow water is azeotropically brought out by the hot steam. ; The distillation product is cooled, collected, and recycled. The pressure of the hot steam is 0.8MPa, and it is 3 The speed of / s is continuously fed into the hot steam, and the time of feeding the hot steam lasts for 30 minutes.

[0049] After distillation, the total amount of secondary yellow water collected is about 170L, and the reduction of yellow water wastewater reaches 43.3%. Sampling and analysis of COD changes in the secondary yellow water showed that COD decreased from 340500mg / L to 278500mg / L, the COD concentration decreased by 18.2%, the total amount of COD decreased from 102.1kg to 47.345kg, and the total reduction of COD reached 53.63%. At the same time

Embodiment 3

[0051] Taking 300L yellow water as an example, the above system is used for processing. During distillation, the distillation method is to use 175°C hot steam to pass into the distillation pot of primary yellow water, and the organic matter in the yellow water is azeotropically brought out by the hot steam. ; The distillation product is cooled, collected, and recycled. The pressure of the hot steam is 0.8MPa, and it is 3 The speed of / s is continuously fed into the hot steam, and the time of feeding the hot steam lasts for 45 minutes.

[0052] After distillation, the total amount of secondary yellow water collected is about 145L, and the reduction of yellow water wastewater reaches 51.6%. Sampling was carried out to analyze the change of COD in the secondary yellow water. The COD decreased from 367500mg / L to 273000mg / L, with a drop rate of 25.7%.

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Abstract

The invention relates to a Maotai-flavor wine yellow liquor decrement and pollution reduction treatment method, which comprises the following steps: collecting primary yellow liquor generated in a Maotai-flavor wine production workshop, after the primary yellow liquor is collected to a certain volume, conveying the primary yellow liquor back to the Maotai-flavor wine production workshop for distillation, recovering distillate, and generating secondary yellow liquor at the same time; collecting the secondary yellow liquor, cooling the secondary yellow liquor to 40 DEG C or below and then feeding the secondary yellow liquor into a wastewater treatment system for following treatment; the distillation method comprises: introducing hot steam with the temperature of 170-180 DEG C into a distillation pot of the primary yellow liquor, and carrying out azeotropy on part of organic matters in the yellow liquor through the hot steam, and cooling, collecting and recycling the distillation product. According to the method provided by the invention, the yield of the yellow liquor wastewater can be reduced by 40-58.3%, the COD concentration in the yellow liquor can be reduced by about 18% or more, the total COD amount can be reduced by 50% or more, and the total nitrogen and total phosphorus can be reduced by 40% or more, so that the aims of reducing the amount and the pollution of the yellow liquor are fulfilled, and the workload and the difficulty of later yellow liquor treatment are greatly reduced.

Description

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Claims

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Application Information

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Owner BEIJING HUIHENG ENVIRONMENTAL PROTECTION ENG CO LTD
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