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Plastics biodegrading method with coleoptera larvae and intestinal microflorae of coleoptera larvae

A technology of coleopteran insects and intestinal microorganisms, applied in animal feed, animal feed, applications, etc., can solve the problems of large accumulation of plastic products and difficulty in biodegradation, and achieve the goals of increased survival rate, weight loss, and efficiency Effect

Pending Publication Date: 2019-08-23
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that plastic products are accumulated in large quantities and are difficult to be biodegraded, and to provide a method for biodegrading plastics in the presence of co-metabolic substrates by coleopteran Tenebrio molitor and its intestinal microorganisms

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Biodegradation of plastics using coleopteran insect larvae and their gut microbes:

[0027] 1. Mix the plastic and the feed evenly, and put the resulting mixture into the container containing Tenebrio molitor;

[0028] Two, placed in the incubator to cultivate;

[0029] 3. Add feed during the cultivation process.

[0030] The plastic in step one is polyethylene foam.

[0031] The plastic in step 1 is in the shape of a neatly cut block.

[0032] The feed described in step one is wheat bran.

[0033] The mass ratio of plastic and feed described in step 1 is 1:1.

[0034] The ratio of feed and Tenebrio molitor described in step one is 0.2g / 100.

[0035] Cultivate as described in step 2, and the culture temperature is 29±0.5°C.

[0036] Cultivate as described in step 2, and the cultivation humidity is 76%.

[0037] Add feed as described in step 3, the frequency is to add once every other day, and the ratio of each additional amount to the original Tenebrio molitor is...

Embodiment 2

[0041] Biodegradation of plastics using coleopteran insect larvae and their gut microbes:

[0042] 1. Mix the plastic and the feed evenly, and put the resulting mixture into the container containing Tenebrio molitor;

[0043] Two, placed in the incubator to cultivate;

[0044] 3. Add feed during the cultivation process.

[0045] The plastic in step one is polyethylene foam.

[0046] The plastic in step 1 is in the shape of a neatly cut block.

[0047] The feed described in step one is straw powder.

[0048] The mass ratio of plastic and feed described in step one is 1.5:1.

[0049] The ratio of feed and Tenebrio molitor described in step one is 1.0g / 100.

[0050] Cultivate as described in step 2, and the culture temperature is 29±0.5°C.

[0051] Cultivate as described in step 2, and the cultivation humidity is 80%.

[0052] Add feed as described in step 3, and the frequency is to add once every 2 days, and the ratio of each additional amount to the original Tenebrio mol...

Embodiment 3

[0056] Biodegradation of plastics using coleopteran insect larvae and their gut microbes:

[0057] 1. Mix the plastic and the feed evenly, and put the resulting mixture into the container containing Tenebrio molitor;

[0058] Two, placed in the incubator to cultivate;

[0059] 3. Add feed during the cultivation process.

[0060] The plastic in step one is polyethylene foam.

[0061] The plastic in step 1 is in the shape of a neatly cut block.

[0062] The feed described in step 1 is a mixture of wheat bran and straw powder, and the mass ratio of the two is wheat bran: straw powder is 1:1.

[0063] The mass ratio of plastic and feed described in step one is 2:1.

[0064] The ratio of feed and Tenebrio molitor described in step one is 2.0g / 100.

[0065] Cultivate as described in step 2, and the culture temperature is 29±0.5°C.

[0066] Cultivate as described in step 2, and the cultivation humidity is 85%.

[0067] Add feed as described in step 3, and the frequency is to a...

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PUM

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Abstract

The invention discloses a plastics biodegrading method with coleoptera larvae and the intestinal microflorae of the coleoptera larvae and belongs to plastics degrading methods. The method specificallycomprises the following steps of, firstly, uniformly mixing plastics and feeds, and filling the mixture into a container containing yellow melworms; secondly, culturing the yellow melworms in an incubator; thirdly, during the culturing process, replenishing feeds. The plastics biodegrading method with the coleoptera larvae and the intestinal microflorae of the coleoptera larvae can not only improve the survival rate of the larvae, but also improve the plastics degrading rate by more than 150%.

Description

technical field [0001] The invention relates to a method for degrading plastics, in particular to a method for biodegrading plastics by using coleopteran larvae and their intestinal microorganisms. Background technique [0002] Plastics have been produced on a large scale since the 1950s, and because of their good stability and difficulty in being biodegraded, they accumulate in large quantities in the natural environment. In 2016, the total output of plastic products in the world has reached 335 million tons. However, plastics not only damage and threaten the ecological environment, but in recent years, it has been found that they have gradually entered the food chain, destroying biodiversity, and accumulating and spreading harmful substances. Therefore, the research on the efficient degradation technology of plastic products is the focus of research to deal with the accumulation and pollution of plastics. The treatment methods of plastics range from traditional incinerati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K67/033A23K50/90A23K10/37A23K20/10
CPCA01K67/033A23K50/90A23K10/37A23K20/10Y02P60/87
Inventor 邢德峰娄宇李威周慧慧李宜然
Owner HARBIN INST OF TECH
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