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Sewage treatment plant operation state evaluation method based on time trajectory similarity

A technology of sewage treatment plant and operation status, applied in data processing applications, general water supply saving, complex mathematical operations, etc., can solve problems such as increasing difficulty, affecting the supervision ability of environmental protection departments, etc., to achieve the effect of low cost

Active Publication Date: 2020-06-26
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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Problems solved by technology

This makes it more difficult for the environmental protection department to make a reasonable assessment of each sewage treatment plant, and this kind of fraud has greatly affected the ability to supervise the environmental protection department

Method used

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  • Sewage treatment plant operation state evaluation method based on time trajectory similarity
  • Sewage treatment plant operation state evaluation method based on time trajectory similarity
  • Sewage treatment plant operation state evaluation method based on time trajectory similarity

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Embodiment Construction

[0040] Hereinafter, the present invention will be further described by means of the drawings and examples. Herein, the schematic examples and descriptions of the present invention explain the present invention, but are not intended to limit the present invention.

[0041] The present invention selects a suitable management operation by discovering a sewage treatment plant operation state evaluation method based on time trajectory similarity, including the following steps:

[0042] (1) Obtain the effluent water quality data of real-time online monitoring of multiple sewage plants in the area. The effluent water quality data includes multiple index data such as BOD, ammonia nitrogen, pH value, COD and total nitrogen, and establish a data set.

[0043] (2) Eliminate missing values ​​and outliers contained in the data set. During the data collection process, some data will be empty due to human or equipment reasons. We call them missing values. Missing values ​​are excluded and not...

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Abstract

The invention discloses a sewage treatment plant operation state evaluation method based on time trajectory similarity. The method comprises the following steps: establishing a plurality of sewage plant real-time online monitoring effluent quality data sets, retaining a correction data set, marking according to different effluent quality indexes of different sewage plants, and selecting all sewageplants and a single sewage plant to segment the data set of water quality data in a specific time period; solving similarity by utilizing the plant group overall water quality data set and the singlewater plant water quality data set to obtain a data set of similarity of all water plants; classifying the obtained data sets of the water quality similarity of all the water plants by utilizing quantiles, setting upper and lower quantiles, and judging the running state of the sewage plants according to the water quality similarity. Behavior characteristics of the sewage plant are characterized according to the similarity value and actual operation of the sewage plant. According to the method, tThe sewage plant with abnormal risk can be quickly identified, and an effective and feasible methodis provided for supervision and evaluation of the sewage plant.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and relates to a method for characterizing the characteristics of sewage plants and identifying abnormal states by analyzing the correlation of effluent water quality data of the overall sewage plants of the plant group and individual sewage plants in the area. Background technique [0002] In recent years, the problem of environmental water pollution has attracted more and more attention. At present, the effective online data method of online water quality index discharge of sewage plants is usually used to evaluate the implementation effect of environmental water pollution control. However, it is extremely difficult and costly to evaluate the effectiveness of all sewage treatment plants in controlling environmental water pollution by evaluating these online data. This is also because some sewage treatment plants have illegal behaviors, such as falsifying monitoring data for the purpose of tempor...

Claims

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Application Information

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IPC IPC(8): G06F17/18G06K9/62G06Q10/06G06Q50/26
CPCG06F17/18G06Q10/06393G06Q50/26G06F18/24Y02A20/152
Inventor 李志华姜阳江润泽
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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