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Cyclops polluted water sampling device and water quality characteristic identification method

A sampling device and the technology of Cyclops, which are applied in the field of sampling devices and water quality characteristics identification of water polluted by Cyclops, can solve the problems of difficult water quality treatment and lack of synergy, and solve the problem of drinking water safety in the field, easy to operate, and easy to carry Effect

Active Publication Date: 2022-03-01
DALIAN UNIV OF TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current sampling process does not consider the separate analysis and judgment after solid-liquid separation, which lacks synergy and also brings difficulties to water quality treatment.

Method used

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  • Cyclops polluted water sampling device and water quality characteristic identification method
  • Cyclops polluted water sampling device and water quality characteristic identification method
  • Cyclops polluted water sampling device and water quality characteristic identification method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] In this embodiment, the actual situation of the water source of the water plant is that Cyclops are in the growth stage, and there is a long period of time before the outbreak.

[0037] At a certain period before the Cyclops outbreak, obtain an appropriate amount of source water (including solids) from the waterworks, and perform operations according to the steps of the method of the present invention. Separation of solid insolubles and liquids, micro-infrared and fluorescence tests were carried out to obtain infrared spectra and fluorescence spectra, respectively, as shown in Figure 5(a) and Figure 5(b):

[0038] As can be seen from the figure, the solid insolubles clearly belong to the hydrozoan zooplankton in the characteristic band of the method. And from the fluorescence graph, according to the index of "riboflavin index", its value is obviously less than 1000, it can be considered that the hydrophobia in this period is in the growth stage, which is consistent with...

Embodiment 2

[0041] In this embodiment, the actual situation of the water source of the water plant is that Cyclops is in the early stage of outbreak, and the sampling device and identification method of the present invention are used to detect the water source water of the water plant, and the "Cyclops" fluorescence spectrum of this period is obtained. "Riboflavin index" is greater than 1000, so it can be concluded that the water source Daphnia is in an outbreak period, which is consistent with the actual situation. Test the infrared spectrum and fluorescence spectrum of solid insolubles and solutions, as shown in Figure 6(a) and Figure 6(b):

[0042] It can be seen from the figure that there are two obvious characteristic bands on the infrared spectrum, indicating that the amount of Cyclops in the water body has increased (the peak intensity has increased significantly compared with the previous time). And it can be seen from the fluorescence spectrum that the "riboflavin index" is aroun...

Embodiment 3

[0045] In this example, using the sampling device and identification method of the present invention, after continuously monitoring the water of the water plant for a period of time, the analysis of the obtained data shows that during the continuous monitoring period, the intensity of the infrared characteristic region of the solid insoluble matter in the water body continues to decrease during this period , while the "riboflavin index", which monitors the fluorescence spectrum, also continued to decrease. The results of the analysis indicated that the Cyclops in this period were in the decline stage. As shown in Figure 7(a), Figure 7(b) and Figure 7(c):

[0046] It can be seen from the figure that the intensity of the insoluble matter in the water body polluted by Cyclops is also decreasing with time, indicating that the number of Cyclops in the water body shows a downward trend; the "riboflavin index" was already low in the 3-day group In 1000, it shows that Daphnia xenopho...

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Abstract

The invention belongs to the field of sampling devices and drinking water safety, and relates to a cyclops polluted water sampling device and a water quality characteristic identification method. And the sampling device part is used for filtering through nets or membranes with different pore diameters, so that the effect of separating solid insoluble substances from a solution is achieved. Meanwhile, zooplankton or other substances needing to be studied and the like with corresponding sizes can be collected by replacing nets or films with different pore diameters. In the identification method part, a sampled water body is subjected to solid-liquid collaborative analysis, solid insoluble substances are analyzed by using an infrared microscope, and specific infrared characteristic regions of 3010 cm <-1 >-2700 cm <-1 > and 1800 cm <-1 >-1480 cm <-1 > belonging to the cyclops are provided. A fluorescence spectrum analysis solution is used, and the specific outbreak condition (growing period-mature period-decline period) of cyclops in the water body can be finally obtained by comparing riboflavin indexes. The method has the characteristics of simplicity and convenience in operation, high accuracy, wide application range and the like.

Description

technical field [0001] The invention belongs to the fields of sampling devices and drinking water safety, and relates to a sampling device for water body polluted by Cyclops and a method for identifying water quality characteristics. Background technique [0002] The body length of Cyclops is about 1.5 mm, and it needs to be caught from natural water bodies in actual research. Usually, water fleas are collected directly by using a filter, but due to the characteristics of swimming and rapid response, water fleas are not easy to be caught. At present, the main method of catching Daphnia is to use filters and other means, but using filters in natural water bodies will cause a large amount of sediment and impurities (leaves, weeds) to block the filters, and often need to be cleaned many times after one use . In the new utility patent (CN 212631893 U), a kind of water flea collecting device is disclosed, the device utilizes a capillary as the final collector, and the front uti...

Claims

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Application Information

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IPC IPC(8): G01N1/14
CPCG01N1/14Y02A20/20
Inventor 马伟孙亚文陈振李绍宽万春香魏楚轩章哲胡璟璐
Owner DALIAN UNIV OF TECH
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