Enrichment device for separating micro-plastics from environmental soil and sediment

A technology for separation and enrichment of microplastics, applied in solid separation, centrifuge, preparation of test samples, etc., can solve the problems of cumbersome and time-consuming extraction of microplastics, low efficiency, low recovery rate, etc., and achieve low price and environmental protection The effect of less pollution and less coverage

Active Publication Date: 2020-02-11
HENAN UNIVERSITY
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Problems solved by technology

[0005] The purpose of the present invention is to provide a semi-automatic enrichment device for separating microplastics in environmental soil and sediments, so as to over

Method used

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  • Enrichment device for separating micro-plastics from environmental soil and sediment
  • Enrichment device for separating micro-plastics from environmental soil and sediment
  • Enrichment device for separating micro-plastics from environmental soil and sediment

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Embodiment approach

[0035] As an embodiment, the overflow device 5 is a combination of a circular bottom plate 51 and a hollow cylinder 52, the circular bottom plate 51 is provided with a through hole corresponding to the hollow cylinder 52, and the circular bottom plate 51 and the hollow cylinder 52 are combined. The included angle of the horizontal plane is 5-10°, which is 5° in this embodiment, and the liquid outlet is arranged on the lower side of the circular bottom plate 51, specifically at the lowest connection between the circular bottom plate 51 and the inside of the sample bottle 2. The liquid outlet of bottle 2 is connected with liquid outlet pipe 12.

[0036] As an implementation, the No. 1 liquid inlet pipe 7 and the No. 2 liquid inlet pipe 8, the No. 3 liquid inlet pipe 20 and the No. 4 liquid inlet pipe 21 are all provided with a peristaltic pump 6. In this embodiment, the peristaltic pump is Multi-channel peristaltic pump. The outlet pipe 12, the No. 1 liquid inlet pipe 7, the No...

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Abstract

The invention belongs to the technical field of solid waste disposal, and particularly relates to an enrichment device for separating micro-plastics from environmental soil and sediment. The device comprises a flotation device, a centrifugal device, a re-flotation device and a micro-plastic separation and enrichment device, wherein the flotation device comprises a stirrer, a sample bottle, an overflow device, a first liquid storage tank and a second liquid storage tank; the re-flotation device comprises a reaction bottle, a third liquid storage tank and a fourth liquid storage tank, the reaction bottle is sequentially provided with an inclined plate, a centrifugal tube support and a liquid leakage device from bottom to top; and the micro-plastic separation and enrichment device comprises aBuchner funnel, a suction flask, a vacuum pump and a culture dish. According to the enrichment device for separating the micro-plastics from the environmental soil and the sediment, the enrichment concentration capability is improved, and the defects such as tedious operation, unclean separation, and low recovery rate of a traditional method for separating the micro-plastics are overcome.

Description

technical field [0001] The invention belongs to the technical field of solid waste treatment, and in particular relates to an enrichment device for separating microplastics in environmental soil and sediment. Background technique [0002] After plastic products disintegrate in terrestrial and aquatic environments, tens of thousands of microplastic particles are eventually formed. Microplastics are plastic pellets, microfibers, plastic granules, foamed plastics or films with a size between 0.2-5.0 mm, and are an increasing class of emerging pollutants in the environment. [0003] The pollution and hazards of microplastics in the water environment have attracted the attention of the scientific community. In recent years, many scholars have done a lot of scientific research. At present, research on microplastic pollution at home and abroad mainly focuses on the marine environment, while there are very few studies on soil microplastic pollution. Therefore, in the research on...

Claims

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Application Information

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IPC IPC(8): B04B5/10B03D1/00G01N1/28
CPCB04B5/10B03D1/00G01N1/28
Inventor 张成丽张伟平钱静陈志凡雷雨辰马建华
Owner HENAN UNIVERSITY
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