Hierarchical collection device of suspended matters of natural water body, and collection method of hierarchical collection device

Abstract

The invention discloses a hierarchical collection device of suspended matters of a natural water body, and a collection method of the hierarchical collection device. The collection device comprises a filtering combination suite, a control box, a submersible pump and a water pipe, wherein the filtering combination suite further comprises a water inlet element, filtering elements and a water outlet element, and a plurality of filtering elements are overlapped together and are arranged between the water inlet element and the water outlet element. According to the hierarchical collection device, the plurality of filtering elements are overlapped together, the apertures of the filtering elements are gradually reduced from top to bottom, the suspended matters in different particle sizes are separated in a layer-by-layer manner, and the suspended matters in different particle sizes can be separated at one time, so that the operation is simple and quick, and precision is improved. The collection device is easy to use during field sampling, depth and flow instruments can be used for quantitative sampling of the natural water bodies in different depths, the suspended matters are separated in place, and the original state of the suspended matters is ensured; and the difficulty in separation of bio-particles in a sedimentation method is overcome; and the collection device has the advantages of large flux, time saving and very low cost.

Description

technical field [0001] The invention relates to a water environment suspended matter monitoring technology, in particular to a natural water body suspended matter classification collection device and a collection method thereof. Background technique [0002] Suspended solids in water refer to solid substances suspended in water, including inorganic substances, organic substances and silt, clay, microorganisms, etc. that are insoluble in water. The content of suspended solids in water is one of the indicators to measure the degree of water pollution. Suspended matter is the main cause of water turbidity. The organic suspended solids in the water body are prone to anaerobic fermentation after deposition, which deteriorates the water quality. Suspended solids exist widely in the water environment. Due to their large specific surface area, they become carriers for transporting and decomposing pollutants. Suspended solids of different particle sizes affect the physical and chem...

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Problems solved by technology

However, the existing method cannot complete the purpose of filtering and screening suspended solids at one time, and must be repeated many times, each time a new filter (membrane) is replaced to achieve the separation of suspended solids with different particle sizes

[0008] 5) Composite classification method: The composite classification method is a new technology method that combines the sedimentation method and the sieve filtration method to separate suspended matter. The composite classification method with a sedimentation system means that it will occupy a large area of ​​use. Applications in field sampling are subject to certain limitations

[0009] 6) Flow cytometry sorting method: The sorting function of flow cytometer is completed by cell sorter. For plankton, flow cytometry sorting method has great advantages, it can separate plankton Different types of suspended matter and non-biological suspended matter, separate different types of plankton, different from the traditional particle size separation idea, and further expand the concept of suspended matter separation, but the implementation cost of this technical means is relatively high compared to other technologies

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