Plankton qualitative and quantitative synchronous collection, separation and concentration integrated device

Abstract

The invention provides a plankton qualitative and quantitative synchronous collection, separation and concentration integrated device, which comprises a sampling pump, a quantitative separation and concentration bottle, a handheld collecting head and a plankton collecting module. The top of the quantitative separation and concentration bottle is provided with a water inlet, and the bottom is provided with a water outlet assembly; the water outlet assembly comprises a bottle bottom end face, a cover body detachably connected to the bottle bottom and a filter membrane; a plurality of water outlet holes are formed in the bottle bottom end surface and the cover body; the filter membrane is pressed between the bottle bottom end surface and the upper end surface of the cover body; the handheld collection head and the quantitative separation and concentration bottle are connected in parallel to an inlet of the sampling pump; the plankton collecting module comprises a conical plankton net, a sampling bottle, an annular water distribution pipe and a collecting water pipe; one end of the collecting water pipe is connected with the outlet of the sampling pump, and the other end of the collecting water pipe is connected with the annular water distribution pipe; the annular water distribution pipe is positioned above the conical plankton net; and the sampling bottle is positioned under theplankton outlet. The device integrates plankton qualitative and quantitative sample collection functions and is convenient to operate and carry.

Description

technical field [0001] The invention relates to the technical field of plankton sampling for water quality monitoring, in particular to an integrated device for qualitative and quantitative simultaneous collection, separation and concentration of plankton. Background technique [0002] Plankton is the basis of the aquatic food chain and occupies an important position in the aquatic ecosystem. Many plankton are sensitive to environmental changes. Changes in the population structure and quantity of plankton in the water are closely related to changes in water quality. Therefore, in water pollution investigations, plankton Biometrics were listed as important indicators. [0003] According to the current norms and methods, when collecting qualitative samples of plankton in the field, it is necessary to use a plankton net to drag and filter underwater for 3-5 minutes, or collect a certain volume (20-50 L) of water samples and filter it with a plankton net. Regularly purchased pl...

AI Technical Summary

Problems solved by technology

A large number of water samples need to be collected during each quantitative sample collection of phytoplankton, and the handling and post-processing after water sample collection need to waste a lot of manpower and financial resources

When collecting more samples, more sample bottles need to be carried, which takes up more space and increases the burden of field sampling

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