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Method for tracking bacterial non-point pollution source

A non-point source and pollution source technology, applied in biochemical equipment and methods, special data processing applications, microbial measurement/inspection, etc.

Active Publication Date: 2011-10-12
YANGTZE RIVER WATER RESOURCES PROTECTION SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is no literature that can fully reflect the types and concentrations of antibiotics required for the characteristics of watershed pollution

Method used

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  • Method for tracking bacterial non-point pollution source
  • Method for tracking bacterial non-point pollution source
  • Method for tracking bacterial non-point pollution source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] The Hujiashan River Basin in Danjiangkou Reservoir Area is the research area, with an area of ​​48km 2 , using the non-point source tracing technology of bacterial sources, a database of known sources in this watershed was established. The types and proportions of antibiotics used are: rifampin (5, 10, 15, 20ug / ml), oxytetracycline (2, 4, 8, 12ug / ml), streptomycin (4, 8, 12, 16ug / ml), cephalosporin (5, 10, 20, 30, 40ug / ml), erythromycin (20, 40, 60, 80ug / ml), tetracycline (2, 4, 6, 8, 14ug / ml) , neomycin (2, 4, 6, 8, 10ug / ml), a total of 7 antibiotics with 31 concentration gradients. The known source database divides pollution sources into four categories, namely people, livestock, poultry and pets, and consists of more than 80,000 data. After analysis, the established known source database has an average accuracy rate (ARCC) of identifying pollution sources of 86.4%.

[0068] Using the established database of known sources, the pollution sources of coliform bacteri...

Embodiment 2

[0070] This technology has been successfully applied in the Najin River Basin of the Songhua River Basin. The area of ​​the Najin River Basin is 1306km 2 , through the analysis of the known sources of non-point source pollution in the watershed, the known source database of the Najin River small watershed was established, and the average accuracy rate (ARCC) of the database reached 87.2%. The types and proportions of antibiotics used were: rifampicin, streptomycin, cephalosporin, erythromycin, tetracycline, neomycin, a total of 6 kinds of antibiotics with 30 concentration gradients.

[0071] According to water sample analysis, human (Human) accounted for 38%, livestock (Livestock) accounted for 28%, poultry (Fowl) accounted for 18%, pets (Pets) accounted for 16% and The pollution source intensity and the contribution of various sources of coliform non-point source pollution in the Najin River small watershed were calculated. Human and livestock feces pollution is the main so...

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Abstract

The invention discloses a novel method for tracking a non-point pollution source, namely a method for tracking a bacterial non-point pollution source. Aiming at the characteristics of uncertain problems of the non-point pollution, unfixed position of pollution, unpredictability and the like, a database with a known bacteria non-point pollution source is established according to different bacterial host groups or different antibiotic resistances of population difference; the related relationship between a bacterial source and bacteria in water is established by using a mathematical statistical method; and further, the source of the bacterial non-point pollution in water and contribution rates of various types of sources are analyzed. The invention provides a technology for converting non-point pollution monitoring into point pollution monitoring, which is applicable for identifying, tracking, managing and controlling the pollution source in the non-point pollution management. The method disclosed by the invention has the advancements as follows: the non-point pollution which is generated by rainstorm runoff and has strong randomness and uncertainty can be effectively identified and accurately measured; and the problem of difficultly identifying and controlling the non-point pollution currently can be solved.

Description

technical field [0001] The invention relates to the technical field of river basin water environment protection, in particular to a method for tracing bacterial non-point source pollution sources. Background technique [0002] The severity of non-point source (Non-point Source, NPS) pollution and the importance of prevention and control have been recognized both at home and abroad. A number of studies at home and abroad have shown that non-point sources have become an important source of water environment pollution; many developed countries have confirmed that agricultural non-point source pollution is one of the main reasons for the deterioration of the water environment. According to reports, non-point source pollution in the United States accounts for 2 / 3 of the total pollution, of which agricultural non-point source contribution accounts for about 75% of non-point source pollution. A number of studies in my country have also shown that non-point source pollution has ris...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12Q1/04G06F19/28
Inventor 王孟雷阿林蒋固政叶闽李迎喜贾海燕杨芳李超余秋梅
Owner YANGTZE RIVER WATER RESOURCES PROTECTION SCI RES INST
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