A sorting and collecting device for water body microplastics

Abstract

The invention provides a sorting and collecting device for water body microplastics, which belongs to the technical field of microplastics collection. The invention includes a cylinder body, a motor, a lower part of the cylinder, a support rod, a conical upper part and several water storage mechanisms, an installation chamber is arranged in the cylinder body, the motor is arranged in the installation chamber through a bracket, and a lower chamber is arranged in the lower part of the cylinder. The bottom of the lower part of the cylinder is fixed on the output shaft of the motor, the bottom of the lower cavity is vertically fixed with a second square tube, the lower end of the support rod is inserted into the second square tube, and the support rod is fixed with the second square tube from top to bottom. A filter net, a second filter net and a third filter net, the upper conical part is provided with an upper cavity, and the lower end of the conical upper part is detachably connected to the lower part of the cylinder, when the lower part of the cylinder rotates, centrifugal force is generated to make it enter the upper cavity The water inside flows into the water storage mechanism through the first filter net, the second filter net and the third filter net sequentially. The invention can quickly separate the microplastic particles in the water body, and has a simple structure.

Description

technical field [0001] The invention belongs to the technical field of microplastic collection, and relates to a water body microplastic classification collection device. Background technique [0002] Microplastics refer to plastic particles and textile fibers with very small particle sizes. There is no general consensus on the size of microplastics in the academic community, and plastic particles with a particle size of less than 5 mm are generally considered microplastics. [0003] At present, the devices and methods for collecting microplastics in water samples have not yet been standardized. Generally, ship trawling is used for sampling, or a large number of water samples are collected and filtered in the laboratory for analysis. Due to the ship trawl sampling, the volume of the water sample cannot be accurately calculated, and the sample cannot be completely exported after sampling, which is inconvenient for analysis. In the existing fixed-point sampling method, the w...

AI Technical Summary

Problems solved by technology

Due to the ship trawl sampling, the volume of the water sample cannot be accurately calculated, and the sample cannot be completely exported after sampling, which is inconvenient for analysis

The existing fixed-point sampling method makes the water body sequentially filter through multi-layer filters, and the filtration efficiency is low.

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