Water body collection system and sampling method

Abstract

The invention discloses a water body collection system and a sampling method, and belongs to the technical field of water quality sampling. The collection system includes: a sampler, a water sample conveying power source, a water sample storage device, a conveying pipeline and a controller. The sampler is provided with a sampling cavity whose end communicates with the outside world, and the end of the sampling cavity that communicates with the outside world is immersed in a natural water body , the liquid inlet end of the water sample conveying power source is connected with the sampling chamber, the water sample storage device is connected with the water sample conveying power source, the conveying pipeline is arranged between the sampler and the water sample conveying power source, and the water sample conveying power source and the water sample Between the storage devices, the controller is electrically connected with the sampler and the water sample delivery power source. In the present invention, the communication end between the sampling cavity of the sampler and the natural water body is closed, and the water sample conveying power source discharges a predetermined amount of water samples in the sampling cavity of the sampler and then stops working, so as to avoid the internal storage of the sampling cavity of the water body sampler. Retaining the water sample reduces the reproduction rate of microorganisms in the water sampler.

Description

technical field [0001] The invention belongs to the technical field of water quality sampling, in particular to a water body collection system and a sampling method. Background technique [0002] The existing water body collection system is to soak the water body sampler in water, and then collect a predetermined amount of water samples at predetermined time intervals. Since the water body collection system is not activated, the inner cavity of the water body sampler immersed in water also retains a predetermined amount of water. The fluidity of the water sample in the water sampler is lower than that of the natural water body, so the growth rate of microorganisms in the water body sampler is higher than that in the natural water body. On the basis of the superimposed microorganisms that grow in the water sampler, the detection value is higher than the actual water pollution and microorganism value, and the detection error gradually increases, which eventually leads to the p...

AI Technical Summary

Problems solved by technology

[0002] The existing water body collection system soaks the water body sampler in water, and then collects a predetermined amount of water samples at predetermined intervals. When the water body collection system is not started, the inner cavity of the water body sampler soaked in water also retains a predetermined amount of water. sample, and the fluidity of the water sample in the water sampler is lower than that of the natural water body, so the microbial growth rate in the water sampler is greater than the microbial growth rate in the natural water body, and each test is based on the last test The microbes that grow in the water sampler are superimposed on the basis of the water sample, which leads to the detection value being higher than the actual water pollution and microbial value, and the detection error gradually increases, which eventually leads to the problem of misjudgment

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