CN112903660A - Method for judging current situation and source of pollution of watershed water body - Google Patents
Method for judging current situation and source of pollution of watershed water body Download PDFInfo
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Abstract
The invention discloses a method for judging the current situation and the source of pollution of a watershed water body, which comprises the following steps: preparing a single-hole hollow imprinted microsphere taking a target pollutant as a template molecule; removing target pollutants in the single-hole hollow imprinted microspheres, connecting the single-hole hollow imprinted microspheres in series through carbon fibers to form a bead string, soaking the bead string in a to-be-monitored flow field, and fishing out after 1 h; detecting by using a portable Raman spectrometer, and comparing the obtained spectrum with a standard Raman spectrum of the target pollutant, thereby obtaining the detection of the target pollutant carried in the watershed water body; and based on the comparison between the pollution source information related to the target pollutant and the distribution condition of the pollution sources around the drainage basin, the drainage basin pollution source is judged. The method can quickly and low-cost realize the identification of the target pollutant in the water body, has the advantage of environmental friendliness while reducing the detection cost, can meet the requirements of on-site and high-flux detection, and simultaneously realizes the judgment of the source of the target pollutant.
Description
Technical Field
The invention relates to a detection method, in particular to a method for judging the current situation and the source of pollution of a watershed water body.
Background
At present, the method for analyzing the water environment pollution source mainly comprises qualitative analysis and quantitative analysis. The qualitative method directly utilizes the chemical properties or some chemical parameters of the pollutants to distinguish the pollution sources, such as a ratio method and the like; the quantitative method utilizes mathematical analysis means to perform source analysis, such as chemical mass balance method, isotope tracer method, multivariate statistical method, mixing method, etc. Due to the influence of the self-properties of pollutants and the difference of environmental conditions of various regions, the quantitative method has limitations of different degrees in practical application, and has large workload and long investigation period. In order to better treat and treat the black and odorous water body in concert with the special action for treating and protecting the environment of the black and odorous water body in the city, it is important to develop a method for judging the current situation and the source of the pollution of the drainage basin water body.
Disclosure of Invention
In order to solve the problems, the invention provides a method for judging the current situation and the source of the water body pollution in a drainage basin, which is characterized in that a single-hole hollow imprinted microsphere with a specific recognition function on a target pollutant is prepared by a molecular imprinting technology, after the adsorption and enrichment of the target pollutant in the water body are realized, a portable Raman spectrometer is used for spectrum acquisition, the detection of the situation of the target pollutant carried in the water body is realized by comparing with a standard Raman spectrum of the target pollutant, and the judgment of the source of the target pollutant is realized at the same time.
In order to achieve the purpose, the invention adopts the technical scheme that:
a method for judging the current situation and the source of pollution of a watershed water body comprises the following steps:
s1, preparing single-hole hollow imprinted microspheres with target pollutants as template molecules;
s2, removing target pollutants in the single-hole hollow imprinted microspheres to obtain the single-hole hollow imprinted microspheres;
s3, connecting the single-hole hollow imprinted microspheres in series through carbon fibers to form a bead string, soaking the bead string in a fluid area to be monitored, and fishing out after 1 h;
s4, detecting the single-hole hollow imprinted microspheres obtained in the step S3 by using a portable Raman spectrometer, and comparing the obtained spectrum with a standard Raman spectrum of a target pollutant to obtain the detection of the target pollutant carried in the watershed water body;
s5, digging pollution source information related to the target pollutant on a preset network base station based on the web crawler module;
s6, acquiring the distribution situation of pollution sources around the drainage basin based on the unmanned aerial vehicle;
and S7, based on the comparison between the pollution source information related to the target pollutant and the distribution situation of the pollution sources around the drainage basin, judging the drainage basin pollution sources.
Furthermore, the single-hole hollow imprinted microspheres are polystyrene microspheres.
Further, in the step S3, the arrangement of the bead strings is realized based on the floating balls.
Further, in the step S4, the average value is used as the detection result of the target pollutant in the watershed.
Further, in step S5, the acquisition of images around the drainage basin is realized based on the unmanned aerial vehicle, the identification of pollution sources carried in the surrounding images is realized based on the DSSD _ inclusion _ V3_ coco model, and the acquisition of the distribution of pollution sources around the drainage basin is realized by reading POS data carried in the surrounding images.
Further, the method also comprises a step of realizing the current state evaluation of the water body pollution of the current drainage basin according to the detection results of various target pollutants based on a Bi-LSTM + Attention model.
The invention has the following beneficial effects:
the single-hole hollow imprinted microsphere with the specific recognition function on the target pollutant is prepared by the molecular imprinting technology, the adsorption and enrichment of the target pollutant in the water body are realized, the spectrum acquisition is carried out by using the portable Raman spectrometer, and the identification of the target pollutant in the water body can be realized quickly and at low cost by comparing the spectrum with the standard Raman spectrum of the target pollutant.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the invention is further described in detail below with reference to examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A method for judging the current situation and the source of pollution of a watershed water body is characterized by comprising the following steps:
s1, preparing single-hole hollow imprinted microspheres with target pollutants as template molecules;
s2, removing target pollutants in the single-hole hollow imprinted microspheres to obtain the single-hole hollow imprinted microspheres;
s3, connecting the single-hole hollow imprinted microspheres in series through carbon fibers to form a bead string, soaking the bead string in a fluid area to be monitored, and fishing out after 1 h;
s4, detecting the single-hole hollow imprinted microspheres obtained in the step S3 by using a portable Raman spectrometer, and comparing the obtained spectrum with a standard Raman spectrum of a target pollutant to obtain the detection of the target pollutant carried in the watershed water body;
s5, digging pollution source information related to the target pollutant on a preset network base station based on the web crawler module;
s6, acquiring the distribution situation of pollution sources around the drainage basin based on the unmanned aerial vehicle;
and S7, based on the comparison between the pollution source information related to the target pollutant and the distribution situation of the pollution sources around the drainage basin, judging the drainage basin pollution sources.
In this embodiment, the single-hole hollow imprinted microsphere is a polystyrene microsphere.
In this embodiment, in the step S3, the arrangement of the bead strings is realized based on the floating balls.
In this embodiment, in the step S4, the average value is used as the detection result of the target pollutant in the watershed.
In this embodiment, in step S5, the acquisition of images around the drainage basin is realized based on the unmanned aerial vehicle, the identification of pollution sources carried in the surrounding images is realized based on the DSSD _ inclusion _ V3_ coco model, and the acquisition of the distribution of pollution sources around the drainage basin is realized by reading POS data carried in the surrounding images.
Example 2
A method for judging the current situation and the source of pollution of a watershed water body is characterized by comprising the following steps:
s1, preparing single-hole hollow imprinted microspheres with target pollutants as template molecules;
s2, removing target pollutants in the single-hole hollow imprinted microspheres to obtain the single-hole hollow imprinted microspheres;
s3, connecting the single-hole hollow imprinted microspheres in series through carbon fibers to form a bead string, soaking the bead string in a fluid area to be monitored, and fishing out after 1 h;
s4, detecting the single-hole hollow imprinted microspheres obtained in the step S3 by using a portable Raman spectrometer, and comparing the obtained spectrum with a standard Raman spectrum of a target pollutant to obtain the detection of the target pollutant carried in the watershed water body;
s5, digging pollution source information related to the target pollutant on a preset network base station based on the web crawler module;
s6, acquiring the distribution situation of pollution sources around the drainage basin based on the unmanned aerial vehicle;
s7, based on the comparison between the pollution source information related to the target pollutant and the distribution situation of the pollution sources around the drainage basin, the judgment of the drainage basin pollution source is realized;
s8, based on the Bi-LSTM + Attention model, the current state of water pollution of the current watershed is evaluated according to the detection results of various target pollutants.
In this embodiment, the single-hole hollow imprinted microsphere is a polystyrene microsphere.
In this embodiment, in the step S3, the arrangement of the bead strings is realized based on the floating balls.
In this embodiment, in the step S4, the average value is used as the detection result of the target pollutant in the watershed.
In this embodiment, in step S5, the acquisition of images around the drainage basin is realized based on the unmanned aerial vehicle, the identification of pollution sources carried in the surrounding images is realized based on the DSSD _ inclusion _ V3_ coco model, and the acquisition of the distribution of pollution sources around the drainage basin is realized by reading POS data carried in the surrounding images.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (6)
1. A method for judging the current situation and the source of pollution of a watershed water body is characterized by comprising the following steps:
s1, preparing single-hole hollow imprinted microspheres with target pollutants as template molecules;
s2, removing target pollutants in the single-hole hollow imprinted microspheres to obtain the single-hole hollow imprinted microspheres;
s3, connecting the single-hole hollow imprinted microspheres in series through carbon fibers to form a bead string, soaking the bead string in a fluid area to be monitored, and fishing out after 1 h;
s4, detecting the single-hole hollow imprinted microspheres obtained in the step S3 by using a portable Raman spectrometer, and comparing the obtained spectrum with a standard Raman spectrum of a target pollutant to obtain the detection of the target pollutant carried in the watershed water body;
s5, digging pollution source information related to the target pollutant on a preset network base station based on the web crawler module;
s6, acquiring the distribution situation of pollution sources around the drainage basin based on the unmanned aerial vehicle;
and S7, based on the comparison between the pollution source information related to the target pollutant and the distribution situation of the pollution sources around the drainage basin, judging the drainage basin pollution sources.
2. The method for distinguishing the current state of pollution and the source of pollution of a watershed water body according to claim 1, wherein the single-hole hollow imprinted microspheres are polystyrene microspheres.
3. The method according to claim 1, wherein in step S3, the bead strings are arranged based on floating balls.
4. The method according to claim 1, wherein in step S4, the average value is used as the detection result of the target pollutant in the watershed.
5. The method for distinguishing the current state of pollution and the source of pollution of a watershed water body according to claim 1, wherein in step S5, the acquisition of images around the watershed is realized based on an unmanned aerial vehicle, the identification of pollution sources carried in the surrounding images is realized based on a DSSD _ inclusion _ V3_ coco model, and the acquisition of the distribution of the pollution sources around the watershed is realized by reading POS data carried in the surrounding images.
6. The method of claim 1, further comprising a step of evaluating the current drainage basin water pollution status according to the detection results of a plurality of target pollutants based on a Bi-LSTM + Attention model.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115494047A (en) * | 2022-11-17 | 2022-12-20 | 广东博创佳禾科技有限公司 | Detection method and system for water environment agricultural pollutants |
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Application publication date: 20210604 |