Experiment system for penetration of graphene particles in GCL

Abstract

The invention relates to an experiment system for penetration of graphene particles in GCL. The system comprises: a penetration device, wherein the penetration device is a closed container, penetration holes (17) are arranged in the bottom of the closed container, the penetration device is used for containing a graphene particle liquid, and a geosynthetic clay liner GCL (15) is spread on the bottom of the penetration device; a pressurizing device communicating with the penetration device and used for regulating the internal pressure of the penetration device; a collecting device connected withpenetration holes (17) and used for collecting the liquid seeped from the penetration device; and a temperature control device covering the penetration device and used for regulating the internal temperature of the penetration device. Compared with systems in the prior art, the system in the invention can realize the research on the interception effect of the GCL on the graphene under the actionof the upper pressure, the temperature, the initial graphene concentration, the ionic strength, the organic matter content and the pH value, and is of great significance to studying the graphene interception performance.

Description

technical field [0001] The invention belongs to the field of environmental geotechnical and environmental engineering, and relates to a penetration experiment system, in particular to an experiment system for the penetration of graphene particles in GCL. Background technique [0002] Graphene is widely used in materials, catalysis, adsorption, electronic devices and other fields due to its excellent physical and chemical properties and unique structure. However, during its production, transportation and application, it inevitably enters landfills in the form of garbage. Buried awaiting disposal. Graphene has extremely strong migration properties in the water environment, and is biologically toxic and environmentally harmful. If graphene enters the ecological environment through the GCL of the landfill, it will harm animals, plants, water bodies and humans in the biosphere. cause great harm. [0003] At present, some scholars have developed experimental systems for the migr...

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Problems solved by technology

Graphene has extremely strong migration properties in the water environment, and is biologically toxic and environmentally harmful. If graphene enters the ecological environment through the GCL of the landfill, it will harm animals, plants, water bodies and humans in the biosphere. cause great harm

[0003] At present, some scholars have developed experimental systems for the migration performance and interception of graphene in soil, but the existing devices focus on the properties of graphene dispersions, and cannot achieve the upper pressure, temperature, and graphene initial concentration. , ionic strength, organic matter content, pH value, etc. under the effects of GCL on the interception performance of graphene, therefore, the development of the device of the present invention is of great significance to the realization of GCL on the research on graphene interception performance

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