A Method for Defining Water Pollution Types

A type of water pollution and type technology, applied in the direction of instruments, data processing applications, digital data information retrieval, etc., can solve problems such as unclear definition of point source pollution and non-point source pollution types, and inability to realize precise control of regional water environment, to achieve Improve effectiveness, high precision, and improve the effect of accuracy

Active Publication Date: 2022-02-08
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology

However, there are large uncertainties in this type of technical method, which leads to unclear definitions of point source pollution and non-point source pollution, and it is impossible to achieve precise control of regional water environment

Method used

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  • A Method for Defining Water Pollution Types
  • A Method for Defining Water Pollution Types
  • A Method for Defining Water Pollution Types

Examples

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Embodiment 1

[0089] Embodiment 1 A kind of definition method of river water body pollution type

[0090] A method for defining river water pollution types, comprising the following steps:

[0091] S1, the monitoring section flow (Q), pollutant concentration (C) and regional rainfall (R) and other data form a database, wherein the pollutants include but not limited to chemical oxygen demand (COD), ammonia nitrogen (NH 3 -N), total nitrogen (TN), and total phosphorus (TP), as shown in Table 1.

[0092] Table 1 Section discharge, pollutant concentration and regional rainfall database

[0093] year moon day Precipitation at 20-20 mm Flow data m3 / s Water quality concentration 2020 1 1 0 1.00 2.00 2020 1 2 0 1.20 1.80 2020 1 3 0 0.80 1.70 2020 1 4 0 0.90 2.20 2020 1 5 0 0.70 2.10 2020 1 6 0 0.90 2.00 2020 1 7 5 0.83 1.60 2020 1 8 0 1.02 1.96 2020 1 9 0 0.91 1.97 2020 1 10 3 1.14 2.00 ...

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Abstract

The invention discloses a method for defining water body pollution types, which includes S1 collecting monitoring data and forming a database; S2 determining a dry boundary and a wet boundary according to the database; S3 determining a reference base flow according to the low boundary and regional rainfall; S4 Group the whole year to establish a group flux database; S5 establish a pollutant flux verification model within the flux verification time boundary; S6 use the pollutant flux verification model to divide the pollutant flux into pollutants during dry periods Flux and pollutant flux during wet periods; S7 calculates the pollution intensity index based on the pollutant flux during the wet period and the pollutant flux during the wet period, and defines the type of water pollution according to the pollution intensity index and its proportion. Through quantitative division of pollution types, the present invention improves the accuracy of pollution type definition, realizes precise control of regional water environment, provides powerful decision-making support for water body pollution control management, and is of great significance to water environment protection.

Description

technical field [0001] The invention belongs to the technical field of water body pollution prevention and control, and specifically relates to a method for defining water body pollution types. Background technique [0002] In the field of water pollution prevention and control, environmental pollution can be divided into "point source pollution" and "non-point source pollution" according to whether its pollution discharge is clear. Point source pollution refers to pollution sources with fixed discharge points. In mathematical models, one point is often used to simplify calculations. For example, industrial wastewater and urban domestic sewage are concentrated into rivers and lakes from discharge outlets. Compared with point source pollution, non-point source pollution has no fixed pollution discharge point, and pollutants enter the water body in a wide-area, scattered, and trace form. [0003] At present, for the definition of water pollution types, the empirical method of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06F16/2455G06Q50/26
CPCG06Q10/0635G06Q50/26G06F16/24568
Inventor 姜霞牛勇王坤王昊男
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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