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Identification method for illegal stealthy blowdown water discharge

An identification method and sewage discharge technology, which is applied in the direction of testing water, buoy liquid level indicators, material inspection products, etc., can solve the problems of large randomness of sewage discharge, intricate sewage pipes, and effective monitoring problems, so as to avoid equipment loss, Improve accuracy and save cost

Inactive Publication Date: 2019-05-03
FOCUSED PHOTONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sewage secretly discharged by the rainwater pipe network has the characteristics of uncertainty, that is, the amount of sewage discharged is uncertain, the time of sewage discharge is uncertain, and the sewage pipelines are intricate, resulting in a large randomness of sewage discharge, which brings difficulties to effective monitoring

Method used

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  • Identification method for illegal stealthy blowdown water discharge
  • Identification method for illegal stealthy blowdown water discharge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] figure 1 A flow chart of the method for identifying illegally discharged sewage according to an embodiment of the present invention is schematically given, as shown in figure 1 As shown, the identification method of the illegally discharged sewage includes a reference liquid level determination step and a detection step;

[0028] The steps of determining the reference liquid level include:

[0029] Detect the liquid level H in the pipe network well by time i , i≥2 and is an integer;

[0030] Judgment H i i-1 Is it established:

[0031] If established, H i As the reference liquid level, continue to the next liquid level detection;

[0032] If not established, H i-1 As the reference liquid level, continue to the next liquid level detection;

[0033] The detection steps include:

[0034] (B1) According to the current detected liquid level h i and reference liquid level H to obtain Δh i =h i -H;

[0035] (B2) Judging Δh i >K is true, K is the threshold:

[00...

Embodiment 2

[0051] An application example of the method for identifying illegally discharged sewage according to Embodiment 1 of the present invention in a rainwater pipe network.

[0052] In this application example, the pipe network well is a rainwater pipe network inspection well; in the step of determining the reference liquid level, the cycle of liquid level detection is 10s-10min, and the reference liquid level is continuously refreshed and applied in the detection step;

[0053] In the detection step, the cycle of liquid level detection is 2h, that is The threshold K can be set artificially, the smaller the threshold, the lower the probability of leaking sewage; when Δh i >Water samples were collected only when K was established, avoiding loss and waste of equipment;

[0054] In the traceability step, there are chemical plants, printing and dyeing plants, paper mills, and power plants in the area. Obviously, the production processes of each unit are different, and the sewage prod...

Embodiment 3

[0056] An application example of the method for identifying illegally discharged sewage according to Embodiment 1 of the present invention.

[0057] The difference from Example 2 is that there are many chemical plants in the area, and at least two of them use the same production process, and the sewage produced is not specific and cannot be distinguished; at this time, the sewage produced in each chemical plant by administrative order Specific substances are added to the sewage. The substances do not pollute the environment, and the removal cost is high. The types and contents of the substances added will be adjusted, but they will be kept secret from the factory.

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Abstract

The invention provides an identification method for illegal stealthy blowdown water discharge. The method comprises a reference level determination step and a detection step, wherein for the referencelevel determination step, the level Hi in a pipe network well is detected based on the time, and i is an integer not smaller than 2; whether Hi is smaller than Hi-1 is determined; if yes, the Hi is taken as the reference level, and next level detection continues; if not, Hi-1 is taken as the reference level, next level detection continues; for the detection step, (B1), deltahi=hi-H is obtained based on a currently detected level hi and a reference level H; (B2), whether deltahi is greater than K is determined, if yes, the process enters a step (B3); if not, next level detection continues; (B3), water quality parameters are obtained through detection; and (B4), whether the water quality parameters exceed the standards; if yes, that illegal stealthy blowdown water discharge occurs is indicated. The method has advantages of accurate determination and high credibility.

Description

technical field [0001] The invention relates to pollution monitoring, in particular to a method for identifying illegally discharged sewage. Background technique [0002] With the increasing emphasis on environmental protection, the government has significantly increased its investment in inland river improvement. The traditional treatment method is to clean up and dredge inland rivers, which can clean up pollutants and improve river conditions to a certain extent. However, the deeper reasons such as insufficient water conservancy facilities, insufficient sewage treatment capacity, and disconnected sewage pipes are rarely touched upon. Inland rivers are often cleared and dredged shortly after the pollution problem reappears, consuming a lot of manpower and material resources of the local government. From a fundamental point of view, it is urgent to carry out more in-depth remediation of heavily polluted inland rivers, which requires not only remediation of inland rivers, b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/18G01F23/72
Inventor 宋顺鑫赵忠欣
Owner FOCUSED PHOTONICS
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