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Recovery processing method and technology of potato starch processing waste material

A processing method and potato starch technology, applied in the field of starch processing, can solve the problems of water pollution, high difficulty, waste of material and energy, etc., and achieve the effects of reducing pollution and improving recycling rate.

Active Publication Date: 2017-06-09
湖北金悦农产品开发有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the high concentration of organic matter in potato starch wastewater and weak acidity, it is currently difficult to use common biochemical treatment methods for potato starch wastewater treatment.
In addition, even if the potato starch wastewater is treated and then discharged, this will not only cause water pollution to a certain extent, but also a waste of material energy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A kind of recycling processing method of potato starch processing waste that present embodiment provides, it comprises the following steps:

[0035] First, 21L of the first potato starch processing wastewater was added to a 30L fermenter, and the temperature in the fermenter was controlled at 27.5°C for the first fermentation for 24 hours. In addition, from the beginning of the first fermentation, the oxygen capacity of the fermented liquid in the fermenter is kept at more than 30%, specifically, controlled by adjusting the air delivery flow rate of the oxygen pipeline in the fermenter.

[0036] Secondly, in the first fermentation process, the second potato starch processing wastewater is treated with saccharification yeast, and it is sterilized. After the first fermentation, the sterilized second potato starch processing wastewater Add it to the culture liquid after the first fermentation to carry out the second fermentation. The fermentation time is 100 hours, the fer...

Embodiment 2

[0041] A kind of recycling processing method of potato starch processing waste that present embodiment provides, it comprises the following steps:

[0042] First, 21L of the first potato starch processing wastewater was added to a 30L fermenter, and the temperature in the fermenter was controlled at 27.5°C for the first fermentation for 24 hours. In addition, from the beginning of the first fermentation, the oxygen capacity of the fermented liquid in the fermenter is kept at more than 30%, specifically, controlled by adjusting the air delivery flow rate of the oxygen pipeline in the fermenter.

[0043] Secondly, in the first fermentation process, the second potato starch processing wastewater is treated with oleaginous yeast, and it is sterilized. After the first fermentation, the sterilized second potato starch processing wastewater is added Carry out the second fermentation in the culture broth after the first fermentation, the fermentation time is 100 hours, the fermentatio...

Embodiment 3

[0047] A kind of recycling processing method of potato starch processing waste that present embodiment provides, it comprises the following steps:

[0048] First, 21L of the first potato starch processing wastewater was added to a 30L fermenter, and the temperature in the fermenter was controlled at 27.5°C for the first fermentation for 24 hours. In addition, from the beginning of the first fermentation, the oxygen capacity of the fermented liquid in the fermenter is kept at more than 30%, specifically, controlled by adjusting the air delivery flow rate of the oxygen pipeline in the fermenter.

[0049] Secondly, in the first fermentation process, the second potato starch processing wastewater was treated with Schwann yeast, and it was sterilized. After the first fermentation, the sterilized second potato starch processing wastewater Add it to the culture liquid after the first fermentation to carry out the second fermentation. The fermentation time is 100 hours, the fermentati...

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Abstract

The invention discloses a recovery processing method and technology of a potato starch processing waste material, and relates to the field of starch processing. The recovery processing method of the potato starch processing waste material comprises the following steps: removing starch in the potato starch processing waste material by using a fermentation technology to extract soluble protein therein, specifically decomposing and converting the starch into glucose through a starch enzyme generated by metabolism of saccharomycetes, and then using the glucose to carry out aerobic respiration; finally using up the starch or the converted glucose by the saccharomycetes, wherein remaining soluble protein and cellulose are recovery processing products of the potato starch processing waste material. According to the recovery processing technology comprising the recovery processing method of the potato starch processing waste material, the pollution of the potato starch processing waste material on the environment can be reduced, and the utilization rate of material resources can be improved.

Description

technical field [0001] The invention relates to the field of starch processing, in particular to a method and process for recycling and processing potato starch processing waste. Background technique [0002] my country's potato starch processing industry has developed rapidly in recent years. According to surveys, there are currently more than 2,000 starch production enterprises in the country, and the annual processing capacity of potatoes is as high as more than 8 million tons, of which the annual processing capacity of potato starch is more than 1.2 million tons. There are three main products in the potato starch production process: the main product is potato starch, and the by-products are potato residue and production wastewater. Among them, the treatment process of potato residue is very simple and not easy to cause pollution. Since potato starch wastewater contains a large amount of organic compounds, such as protein and sugar, it also contains some starch granules, ...

Claims

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Application Information

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IPC IPC(8): C07K1/14
CPCC07K1/145
Inventor 郭鹏王轶郑丹赵明明周明陈全秀胡杰
Owner 湖北金悦农产品开发有限公司
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