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Beer lees biomass charcoal with effect of removing pesticide pymetrozine, as well as preparation method and application thereof

A technology of pymetrozine and brewer's grains, applied in the field of brewer's grains biochar and its preparation, to achieve the effects of promoting recycling, high removal effect, and wide application range

Inactive Publication Date: 2013-06-19
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the factory mainly sells the wet grains directly as roughage at a low price. Due to the high water content, it is difficult to store, and it is easy to go moldy. The amount of use is limited. In areas without domestic livestock, this method is not suitable and the economic benefits are low. , more waste residues have yet to be processed, and some breweries even directly discharge the excess brewer's grains in the form of waste, which not only pollutes the ecological environment, but also greatly wastes resources

Method used

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  • Beer lees biomass charcoal with effect of removing pesticide pymetrozine, as well as preparation method and application thereof
  • Beer lees biomass charcoal with effect of removing pesticide pymetrozine, as well as preparation method and application thereof
  • Beer lees biomass charcoal with effect of removing pesticide pymetrozine, as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Brewer's grain biochar with the effect of removing pesticide pymetrozine, which is prepared by the following method:

[0038] Place the wet brewer's grains in a vacuum drying oven, and dry them at a constant temperature under the condition of 110°C until the quality of the brewer's grains does not change, and then grind the dry brewer's grains samples, and then under the protection of nitrogen, under the condition of 400°C Carbonize at constant temperature for 4 hours, and pass through a 100-mesh sieve to obtain brewer's grain biochar.

Embodiment 2

[0040] 2. Pymetrozine removal test

[0041] Weigh more than 1g of the brewer's grain biochar prepared in Example 1, add it to 50 mL of 10 mg / L pymetrozine solution, adjust the pH of the solution to 3, and shake it in a constant temperature oscillator at 25 ° C. After 4 hours of treatment, centrifugal filtration was performed, and the concentration of pymetrozine in the supernatant was measured with a spectrophotometer (Beijing General Analysis, T6 New Century). The test results showed that the removal rate of pymetrozine was 93.87%. The biochar restoration material produced by the brewer's grains used in the present invention is beneficial to the consumption of waste in the beer industry, promotes the recycling of resources, and can remove harmful pymetrozine pesticide residues, which is of great significance to environmental protection and has a good promotion and application value.

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Abstract

The invention discloses beer lees biomass charcoal with an effect of removing pesticide pymetrozine. The beer lees biomass charcoal is prepared by steps of placing wet beer lees in a vacuum drying box, drying, grinding, then performing constant-temperature carbonization at the temperature of 300 DEG C-500 DEG C for 3-5 hours under the protection of nitrogen, and finally screening. The beer lees biomass charcoal disclosed by the invention is prepared from the beer lees, an optimal preparation process of the beer lees biomass charcoal is screened through a large number of tests, waste is changed to a valuable thing, the circulating utilization of resources is promoted, and test results show that the beer lees biomass charcoal provided by the invention has a very high removal effect on pesticides, particularly on the pymetrozine pesticide, has important application value in the control of pesticide pollution and has important significance for environmental protection.

Description

technical field [0001] The invention relates to a biochar, in particular to a brewer's grain biochar capable of removing the pesticide pymetrozine, a preparation method and application thereof. Background technique [0002] Purpose of the invention: the purpose of the present invention is to solve the prior art. my country is one of the big countries in pesticide production and use, and the amount of pesticides used every year is up to 500,000-600,000 tons, and its types include herbicides, insecticides and fungicides. The utilization efficiency of chemicals and pesticides is very low, and about 80% of them enter the environment directly. According to statistics, the area of ​​soil polluted by pesticides in my country is 16-20 million hectares, and the economic loss is more than 1 billion yuan. Due to long-term large-scale and irrational use, pesticides not only play a huge role in ensuring crop yields, but also cause pollution to the environment, seriously affecting food ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B31/02C01B32/05
Inventor 全桂香严金龙崔立强
Owner YANCHENG INST OF TECH
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