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Estimation method of sewage toxin concentration

A concentration and toxin technology, applied in biochemical equipment and methods, testing water, computational theoretical chemistry, etc., can solve the problem that it is difficult to achieve good results in nonlinear dynamic systems, and achieve the effect of ensuring accuracy

Active Publication Date: 2021-09-07
JIANGNAN UNIV
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Problems solved by technology

Commonly used estimation methods for nonlinear systems, such as Extended Kalman Filter (EKF), Unscented Kalman Filter (UKF), Ensemble Kalman Filter (EnKF), Rolling Time Domain Estimation (MHE), etc. However, it is difficult to achieve good results in nonlinear dynamic systems with large process noise, observation noise or modeling uncertainty.

Method used

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  • Estimation method of sewage toxin concentration
  • Estimation method of sewage toxin concentration
  • Estimation method of sewage toxin concentration

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Experimental program
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Embodiment

[0039] It should be noted that (1) CI is the cell index value, which is an indirect indicator of toxic pollutants and biological consequences in the aquatic environment, and the dynamic model of the cell's response to toxicity established according to the CI value can be used for online monitoring of cytotoxicity. estimate.

[0040] (2) NIH 3T3 is a mouse embryonic fibroblast cell line established by the National Institutes of Health (abbreviated as NIH). It is commonly used in laboratories for research on transfection and gene expression.

[0041] The embodiment of the present invention discloses a method for estimating the concentration of toxins in sewage, which is used to estimate the concentration of toxins in sewage on-line during the process of sewage treatment. figure 1 shown, which includes the following steps,

[0042] The first step is to create a dynamic model of cytotoxin based on the uptake mechanism of the toxin by cells and the changes in the number of cells ...

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Abstract

The invention discloses a method for estimating the concentration of toxins in sewage. The cultured cells with a certain cell index CI are exposed to sewage samples, and the measured value of the cell number of the cultured cells in the sewage samples is collected continuously; The resulting cell number changes create a cytotoxin dynamic model; the cytotoxin dynamic model and the cell number measurements are processed using a particle filter algorithm to estimate the toxin concentration in the sewage sample. The present invention adopts the particle filter algorithm to continuously estimate the toxin concentration in the sewage on the basis of the cell number measurement value of the cultured cells exposed in the sewage sample and the cytotoxin dynamic model, and accurately estimate the toxin concentration in the sewage, and the particle filter adopted The algorithm can achieve good estimation results for nonlinear dynamic systems with large process noise, observation noise or uncertain modeling, and ensure the accuracy of toxin concentration estimation.

Description

technical field [0001] The invention relates to a method for determining toxin concentration, in particular to a method for estimating sewage toxin concentration. Background technique [0002] Sewage treatment is the process of using various methods to separate the pollutants contained in the sewage or convert them into harmless substances, so as to purify the sewage. Generally, urban and industrial water treatment units combine primary, secondary and tertiary treatment processes to efficiently treat various pollutants in water, namely inorganic pollutants, organic pollutants and biological pollutants. Primary treatment mainly uses physical methods to remove suspended solids and some organic matter; secondary treatment uses biological, chemical or physical and chemical methods to remove colloids and dissolved substances in sewage on the basis of primary treatment; tertiary treatment Further remove refractory substances and nitrogen, phosphorus and heavy metals. Due to the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/18G16C10/00C12Q1/06
CPCC12Q1/06G01N33/18G16C10/00
Inventor 赵顺毅赵珂王劲夫刘飞栾小丽
Owner JIANGNAN UNIV
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