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A Method of Using Support Vector Machines to Predict the Operational Effectiveness of Rural Domestic Sewage Treatment Facilities

一种支持向量机、处理设施的技术,应用在生物水/污水处理、可持续生物处理、水/污泥/污水处理等方向,能够解决工作量大、工作量巨大、判断结果失准等问题,达到快速预测、预测准确性高、实现预测的效果

Active Publication Date: 2020-03-10
YANGTZE DELTA REGION INST OF TSINGHUA UNIV ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the operation and management of rural domestic sewage treatment facilities mainly rely on manual work, and the effectiveness of facility operation, especially the removal effect of major pollutants such as COD, ammonia nitrogen, and TP in sewage, cannot be quickly judged
If the water quality indicators are monitored based on the national standard method, the cost of sampling and water quality testing in the supervision process is high, the cycle is long, and the workload is heavy, and it is difficult to indicate the operational effectiveness of the facilities in real time
[0004] The workload of sampling and water quality testing is enormous for a large number of scattered rural domestic sewage treatment facilities
Moreover, based on the national standard method, the cost of detection is high and the timeliness is poor, so it is impossible to control rural domestic sewage treatment facilities in a targeted manner by obtaining real-time effluent results
However, the rapid detection equipment based on the principle of spectroscopy such as COD and ammonia nitrogen is not only expensive, but also has certain errors with the national standard method. Therefore, the results obtained by these rapid water quality detection instruments can be used to judge the operation of rural domestic sewage treatment facilities. When , the judgment result is often inaccurate due to the accumulation of errors

Method used

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  • A Method of Using Support Vector Machines to Predict the Operational Effectiveness of Rural Domestic Sewage Treatment Facilities
  • A Method of Using Support Vector Machines to Predict the Operational Effectiveness of Rural Domestic Sewage Treatment Facilities
  • A Method of Using Support Vector Machines to Predict the Operational Effectiveness of Rural Domestic Sewage Treatment Facilities

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] A method for predicting the operational effectiveness of rural domestic sewage treatment facilities using support vector machines, the specific steps are as follows:

[0046] (1) Select 164 rural domestic sewage treatment facilities in the Yangtze River Delta region. The rural domestic sewage treatment facilities include mainstream A 2 O treatment facilities, artificial wetland treatment facilities, SBR treatment facilities and aeration filter facilities, the treatment scale ranges from 5-160t / d; all facilities are composed of two parts, the regulating tank and the sewage treatment device, and the influent of the water regulating tank A lift pump is installed at the end, and a water outlet well is provided at the outlet of the sewage treatment device. The rural domestic sewage treated by the above-mentioned facilities is composed of feces and urine sewage, kitchen sewage and laundry sewage treated by septic tanks, and its main pollutants are COD, total nitrogen, ammonia...

Embodiment 2

[0063] In this embodiment, except that the judgment of effective operation is changed to "the removal rate of any one of COD, ammonia nitrogen, total phosphorus and SS in rural domestic sewage by rural domestic sewage treatment facilities is ≥ 30% and COD, ammonia nitrogen and total nitrogen do not appear. , total phosphorus in any two indicators of the effluent concentration is greater than the influent concentration", the rest adopt the same sample and prediction method as in Example 1.

[0064] Prediction results: the actual effectiveness of 9 facilities is the same as the predicted effectiveness, indicating that the prediction is correct; the actual effectiveness of 1 facility is different from the predicted effectiveness, indicating that the prediction is wrong; therefore, the prediction accuracy of the prediction set is 90%.

Embodiment 3

[0066] In this embodiment, the determination of effective operation is changed to "the removal rate of any one of COD, ammonia nitrogen, total phosphorus and SS in rural domestic sewage by rural domestic sewage treatment facilities is ≥ 70% and there is no occurrence of COD, ammonia nitrogen and total nitrogen. , total phosphorus in any two indicators of the effluent concentration is greater than the influent concentration", the rest adopt the same sample and prediction method as in Example 1.

[0067] Prediction results: the actual effectiveness of 8 facilities is the same as the predicted effectiveness, indicating that the prediction is correct; the actual effectiveness of 2 facilities is different from the predicted effectiveness, indicating that the prediction is wrong; therefore, the prediction accuracy of the prediction set is 80%.

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Abstract

The invention discloses a method for predicting the operational effectiveness of rural domestic sewage treatment facilities by using a support vector machine. The efficiency and conductivity of effluent water are used as input, and the operation status of rural domestic sewage treatment facilities is used as output. The training set is trained by support vector machine, and the prediction model for the operation effectiveness of rural domestic sewage treatment facilities is constructed; the progress of the treatment facilities to be predicted is collected. Water conductivity and effluent conductivity are input into the prediction model to obtain prediction results. The method of the invention correlates the detection index of the inflow and outflow conductivity with the operational effectiveness of rural domestic sewage treatment facilities, and constructs a support vector machine model to obtain a prediction model, which not only has high prediction accuracy, but also is fast and cheap.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a method for predicting the operational effectiveness of rural domestic sewage treatment facilities by using a support vector machine. Background technique [0002] With the rapid development of the rural economy, the living standards of farmers have been greatly improved, but the rural environmental construction and economic development are not synchronized, and the problem of water pollution is particularly serious. Among them, the treatment of rural domestic sewage has attracted more and more attention. . Due to the characteristics of small water volume and scattered discharge of rural domestic sewage, a large number of decentralized rural domestic sewage treatment facilities have been built in my country. Highly dispersed, the number of facilities in each county can reach hundreds or thousands. The long-term operation of these facilities is particularly important...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M99/00G06K9/62C02F3/32C02F3/30C02F3/12C02F3/02
CPCG01M99/008G01M99/005C02F3/30C02F3/32C02F3/02C02F3/1263C02F2209/08C02F2209/14C02F2209/18C02F2209/16C02F2209/05G06F18/2411G06F18/214Y02W10/10C02F2209/001C02F2209/006C02F2209/008C02F2209/10C02F3/1242C02F3/006G06N20/10C02F3/327G01M99/00
Inventor 郁强强刘锐陈吕军
Owner YANGTZE DELTA REGION INST OF TSINGHUA UNIV ZHEJIANG