Detection device and application of biological effect of nanomaterial-pollutant system

Abstract

The invention discloses a nano-material-pollutant system biological effect detection device which is used for small aquatic nektonic organisms and comprises a biological culture system and a biological isolation system positioned inside the biological culture system. The biological culture system comprises a cylinder and an outer cover positioned at the upper end of the cylinder, the biological isolation system comprises internal cylindrical holes positioned in the cylinder, and the internal cylindrical holes include at least three common internal cylindrical holes and an internal cylindrical hole with a nonwoven fabric interlayer in the middle. The invention further discloses a nano-material-pollutant system biological effect detection device application. The detection device has the advantages that the nano-material-pollutant complex system biological effect detection device and application can reflect concentration change of pollutants in different water layers caused by nano-material gathering, nano-material settling and the mutual adsorption process of nano-materials and the pollutants, reflect the regression process of the nano-materials for the environmental pollutants and cover control setting of the different water layers, the device is simply placed, and temperature parameters can be controlled.

Description

technical field [0001] The invention relates to the field of ecological risk assessment, in particular to a detection device and application of a biological effect of a nanomaterial-pollutant system. Background technique [0002] Nanotechnology is known as one of the three pillar technologies of the 21st century. Due to their special properties, nanomaterials are widely used in various fields, but nanomaterials will inevitably enter the environment and ecosystem during the process of use and disposal, thereby triggering various biological effects. At present, the research on the biological effects of nanomaterials is mostly limited to the toxic effect of a single substance under laboratory conditions. However, in the actual natural environment, nanomaterials often coexist with multiple pollutants and have complex interactions. Compared with macroscopic particles, nanomaterials have a larger specific surface area. Once they enter the environment, they can significantly affec...

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Problems solved by technology

However, while the research in this area is increasing year by year, it is not difficult to find that most of the existing research methods are single, often using a simple model in which the biological effects of the tested organisms exposed to the "nanomaterial-pollutant" mixture are compared with those of the control group. However, nanomaterials have various characteristics, and most of them have a sedimentation effect and can effectively adsorb a variety of pollutants. The aggregation and sedimentation effect leads to a local increase in the concentration of pollutants, and experimental animals living in different water layers were used. The opposite result will also be obtained, and nanomaterials with different water characteristics will also lead to different environmental fates of the complex.

However, the existing related studies are all carried out in a single way, and most of the experimental conditions in the research are not the same, and the conclusions obtained also have different emphases, without considering the environmental process and distribution of pollutants in real water samples, often based on one The direct results of the tested animals are the final conclusion of the environmental effects of the nanomaterial-pollutant complex system, which leads to inconsistencies in the existing research results. Therefore, the generalized research methods in the related research models need to be further improved and optimized.

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