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Micro-plastic floatation separation device and application thereof

A separation device and microplastic technology, applied in plastic recycling, recycling technology, etc., can solve the problems of low separation recovery rate and cumbersome steps, and achieve high separation efficiency and effective separation effect

Inactive Publication Date: 2017-11-21
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Nowadays, this issue has received extensive attention from all over the world, but the detection and analysis of microplastics is still in its infancy, especially the separation in the pretreatment of related microplastic samples, the steps are cumbersome and the separation recovery rate is low

Method used

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  • Micro-plastic floatation separation device and application thereof
  • Micro-plastic floatation separation device and application thereof

Examples

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Embodiment Construction

[0016] The present invention can be better understood from the following examples. However, those skilled in the art can easily understand that the content described in the embodiments is only for illustrating the present invention, and should not and will not limit the present invention described in the claims.

[0017] Such as Figure 1~2 As shown, the microplastic flotation separation device of the present invention includes a liquid storage tank 1, a reactor 3, a primary density separation tank 4, a secondary density separation tank 5 and a filter 6 connected in sequence; wherein, in the liquid storage tank 3 Stored with ZnCl 2 solution, a valve 2 and a peristaltic pump 7 are arranged on the pipeline connecting the liquid storage tank 1 and the reactor 3; the reactor 3 is provided with an agitator 9, and the reactor 3 is aerated by the air pump I8, and the aeration can prevent The suspension in the pool sinks, that is, to prevent the microplastics in the liquid from sink...

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Abstract

The invention discloses a micro-plastic flotation separation device. The micro-plastic flotation separation device comprises a liquid storage pond, a reactor, a first-level density separation pond, a second-level density separation pond and a filter all of which sequentially communicate with one another, wherein a pipeline for communicating the liquid storage pond with the reactor is provided with a valve and a pump; the reactor is internally provided with a stirrer, and the reactor conducts water sample aeration through an air pump I; and the filter is internally provided with a filter film, and an outlet pipeline of the filter is provided with an air pump II. The micro-plastic flotation separation device can achieve flotation separation of micro-plastic for different environment samples and has the beneficial effects that the separation efficiency is high, filtrate used for flotation can be recycled, and adopted solvents are environmentally friendly.

Description

technical field [0001] The present invention relates to a microplastic flotation separation device, and also relates to the application of the microplastic flotation separation device to the separation of microplastics in water, soil, sediment and biological samples. Background technique [0002] Microplastics generally refer to plastic particles with a diameter of less than 5mm. It was first proposed by scientist Thompson in 2004. According to statistics, the number of microplastics in the ocean in 2014 was about 15 trillion to 51 trillion (particles), with a weight of about 93,000 tons. ~236,000 tons, which is only 1% of the global plastic waste entering the ocean after 2010. Compared with the intuition of plastic pollution, the harm of microplastic pollution is latent. The magnitude of microplastics is similar to that of many animals' food, making microplastics easy to be ingested by animals. Ingested plastics will follow the food chain from low trophic levels to high t...

Claims

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Application Information

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IPC IPC(8): B29B17/02
CPCB29B17/02B29B2017/0244B29B2017/0248Y02W30/62
Inventor 陆光华江润仁闫振华孙红伟董慧科
Owner HOHAI UNIV
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