Hydrogen sulfide trapping control method based on industrial monitoring software

By combining industrial monitoring software with a soft measurement reconstruction model and a toxicity inhibition index, a drug dosing control strategy is generated, which solves the problem of hydrogen sulfide capture and elimination control caused by the failure of a single sensor, realizes the reliability of the data source and the stability of the biological system, and prevents over-dosing of drugs.

CN122018467AInactive Publication Date: 2026-05-12CHONGQING VOCATIONAL COLLEGE OF SAFETY TECH
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Patent Information

Application Number
CN202610199998.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-02-11
Publication Date
2026-05-12
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In existing hydrogen sulfide capture and control methods, single gas sensors are prone to failure or drift, resulting in distorted feedback signals. There is a lack of quantitative assessment of the toxic side effects of the agent on downstream biological treatment units, which can easily lead to overdosing and the collapse of the biological system, reducing the stability and safety of the entire process.

Method used

Indirect state parameters are collected by industrial monitoring software, and the hydrogen sulfide concentration is calculated and predicted using a soft measurement reconstruction model to correct the direct monitoring parameters. Combined with the toxicity inhibition index, a chemical dosing control strategy is generated, including emergency blocking, controlled spill, and critical steady-state strategies, to ensure the accuracy and safety of chemical dosing.

Benefits of technology

It achieves deep integration of physical and soft measurements, identifies sensor drift or failure, prevents overdosing of reagents, ensures the authenticity and reliability of the control system's data source, enhances the resilience and environmental compliance of biological systems, and avoids system collapse.

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Abstract

The invention relates to the technical field of sewage treatment and industrial automation control, in particular to a hydrogen sulfide trapping control method based on industrial monitoring software, which comprises the following steps: a data acquisition and pretreatment step: acquiring indirect state parameters and direct monitoring parameters of a sewage treatment system through the industrial monitoring software; a soft measurement reconstruction and correction step: inputting the indirect state parameters into a soft measurement reconstruction model to calculate and predict the hydrogen sulfide concentration, and correcting the direct monitoring parameters to generate a corrected hydrogen sulfide concentration value; a toxicity index resolving step: resolving a toxicity inhibition index of the downstream biological treatment unit based on the historical medicament dosage and the real-time flow data; a multi-mode strategy decision-making step: based on the corrected concentration value and the toxicity inhibition index, selectively generating an emergency blocking, controlled overflow or critical steady state strategy and outputting a medicament pump control instruction; the invention overcomes the defect that the traditional control neglects the side effect of the medicament, and realizes the system ductile operation of maintaining environment-friendly compliance and protecting biological activity.
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