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Effective plastic degradation method

A technology for plastics and raw materials, applied in the field of effective ways of plastic degradation, can solve problems such as pollution, and achieve the effects of easy contact degradation and convenient secondary reuse

Inactive Publication Date: 2018-07-17
何焕平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention provides an effective method of plastic degradation, so that plastics can be recycled and used repeatedly, and waste plastics can be recycled into finished products and gasoline and diesel can be produced after treatment, effectively solving plastic pollution environmental and social issues

Method used

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  • Effective plastic degradation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] An effective way of plastic degradation is characterized in that it comprises the following specific steps:

[0027] S1. Sieve the collected plastic raw materials, clean them, and perform mechanical destruction to reduce their volume;

[0028] S2. Put the pretreated raw materials into the soaking solution for soaking for 24 hours, and keep the soaking temperature at 37°C;

[0029] S3. Cleaning the soaked raw materials, adding them to the fermenter for fermentation and degradation;

[0030] S4. Collect the degraded mixed solution, waiting for secondary extraction and recycling.

[0031] The soaking liquid in the step S2 includes the following components in parts by weight: calcium hydroxide 8, sodium hydroxide 6, ammonium chloride 13, ammonium bicarbonate 11, triethanolamine 9, glycerol 3, mannitol 4.

[0032] Further, the concentration of the soaking solution is 0.21moL / L.

[0033] The soaking solution in the present invention can be combined with the functional grou...

Embodiment 2

[0043] An effective way of plastic degradation is characterized in that it comprises the following specific steps:

[0044] S1. Sieve the collected plastic raw materials, clean them, and perform mechanical destruction to reduce their volume;

[0045] S2. Put the pretreated raw materials into the soaking solution for soaking for 72 hours, and keep the soaking temperature at 60°C;

[0046] S3. Cleaning the soaked raw materials, adding them to the fermenter for fermentation and degradation;

[0047] S4. Collect the degraded mixed solution, waiting for secondary extraction and recycling.

[0048] The soaking solution in the step S2 includes the following components in parts by weight: calcium hydroxide 17, sodium hydroxide 11, ammonium chloride 19, ammonium bicarbonate 21, triethanolamine 17, glycerol 9, mannitol 8.

[0049] Further, the concentration of the soaking solution is 0.39moL / L.

[0050] Further, the fermentation degradation process in the step S3 is: the total number...

Embodiment 3

[0054] An effective way of plastic degradation is characterized in that it comprises the following specific steps:

[0055] S1. Sieve the collected plastic raw materials, clean them, and perform mechanical destruction to reduce their volume;

[0056] S2. Put the pretreated raw materials into the soaking solution for soaking for 48 hours, and keep the soaking temperature at 48.5°C;

[0057] S3. Cleaning the soaked raw materials, adding them to the fermenter for fermentation and degradation;

[0058] S4. Collect the degraded mixed solution, waiting for secondary extraction and recycling.

[0059] The soaking liquid in the step S2 includes the following components in parts by weight: calcium hydroxide 13, sodium hydroxide 9, ammonium chloride 16, ammonium bicarbonate 16, triethanolamine 13, glycerol 6, mannitol 6.

[0060] Further, the concentration of the soaking solution is 0.3moL / L.

[0061] Further, the fermentation degradation process in step S3 is as follows: the total n...

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PUM

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Abstract

The invention provides an effective plastic degradation method which particularly comprises the following steps of: S1, screening and thoroughly cleaning a collected plastic raw material, performing mechanical disruption on the plastic raw material to reduce the volume of the raw material, S2, soaking the pretreated raw material in a soaking solution for 24-72h, keeping a soaking temperature at 37-60 DEG C, S3, cleaning the soaked raw material, adding the raw material into a fermentation tank for fermentative degradation, and S4, collecting a degraded mixed solution for secondary extraction and recycling. The method can allow plastic to be recycled very conveniently; after recovery and treatment, the waste plastic can become a product again; gasoline and diesel oil can also be prepared; and the environmental and social problems caused by plastic pollution are effectively solved.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to an effective way for plastic degradation. Background technique [0002] Ordering takeaway during busy work and bad weather has become the norm for many people. However, with the surge in takeout volume, the packaging boxes and bags consumed by takeout are also getting bigger and bigger. The ensuing white pollution has also attracted everyone's attention. [0003] The report on the development of China's food delivery O2O industry shows that in 2016, the proportion of online food delivery users who consumed more than 3 times a week reached 63.3%. According to this consumption pattern, at least 400 million takeaways are delivered every week, resulting in the waste of 400 million disposable packing boxes and disposable tableware. Takeaway disposable tableware has become a new "white pollution". In this regard, Xie Yufeng, a researcher at the Shaanx...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08J11/10C08J11/24C08J11/28C08J11/16
CPCC08J11/105C08J11/16C08J11/24C08J11/28C08J2300/00Y02W30/62
Inventor 何焕平黄建辉余金铭
Owner 何焕平
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