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Method for predicting acute toxicity of Chinese medicinal material processing wastewater

A technology for acute toxicity, processing wastewater, applied in prediction, general water supply saving, color/spectral characteristic measurement, etc., can solve the problems of complicated operation and high cost of acute toxicity detection technology, and achieve the effect of good use effect and high accuracy

Inactive Publication Date: 2018-11-27
HARBIN INST OF TECH
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to propose a method for predicting the acute toxicity of wastewater from processing Chinese herbal medicines in order to solve the disadvantages of complicated operation and high cost of the existing acute toxicity detection technology

Method used

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  • Method for predicting acute toxicity of Chinese medicinal material processing wastewater
  • Method for predicting acute toxicity of Chinese medicinal material processing wastewater

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0016] Specific embodiment one: a kind of method for predicting the acute toxicity of Chinese medicinal material processing wastewater comprises the following steps:

[0017] Step 1: For the water sample to be tested, UV is detected at the same time 254 , VFA and acute toxicity three indicators, tested once a day, collecting test data greater than or equal to one month;

[0018] Step 2: Use the detection data obtained in Step 1 to perform binary linear regression analysis to establish a prediction model;

[0019] Step 3: Calculate the predicted value of acute toxicity through the prediction model, and compare it with the measured value of acute toxicity. If the accuracy requirements are met, use the prediction model established in step 2 for the prediction of acute toxicity; if not, execute again Steps 1 to 2 establish a forecast model;

[0020] The accuracy requirement is that the predicted values ​​all fall within the error limit of ±20% of the measured value, and more tha...

specific Embodiment approach 2

[0023] Specific embodiment two: the difference between this embodiment and specific embodiment one is: in the step one, the UV 254 It is the absorbance value measured on a spectrophotometer using a quartz cuvette with a thickness of 1 cm at a wavelength of 254 nm, and its unit is cm -1 .

[0024] Other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0025] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: VFA in the step one is detected by the combined titration method of VFA and bicarbonate alkalinity, and its unit is mg / L (acetic acid).

[0026] Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.

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Abstract

The invention provides a method for predicting acute toxicity of Chinese medicinal material processing wastewater, relates to the method for predicting the acute toxicity of the Chinese medicinal material processing wastewater, and aims at solving the problems of complicated operation and high cost of the existing acute toxicity detection technology. The method comprises the steps: step one: detecting three indexes of UV254, VFA and acute toxicity for the water sample to be detected once a day and collecting the detection data of more than or equal to one month; step two: establishing a prediction model; step three: calculating the acute toxicity prediction value by the prediction model to be compared with the measured acute toxicity value, if the accuracy requirement is met, the prediction model is applied to prediction of the acute toxicity, or the step one to step two are performed again to establish the prediction model; and step four: if the water quality remains unchanged, the prediction model is checked every three months; if the water quality changes, the prediction model is checked immediately; and if the accuracy requirement is not met, the prediction model is reestablished. The method is used in the technical field of industrial wastewater treatment.

Description

technical field [0001] The invention relates to the technical field of industrial wastewater treatment, in particular to a method for predicting the acute toxicity of wastewater from processing traditional Chinese medicinal materials. Background technique [0002] As people pay more and more attention to environmental issues, the pollution of waste water from the processing of traditional Chinese medicinal materials has also received more and more attention. In 2008, the Ministry of Environmental Protection issued the discharge standard for water pollutants in the pharmaceutical industry of traditional Chinese medicine (GB 21906-2008), which clearly includes acute toxicity Included in the scope of 14 indicators for daily monitoring of traditional Chinese medicine pharmaceutical industrial wastewater. The standard shows that the acute toxicity index is determined by the method of luminescent bacteria (GB / T 15441-1995). The method of luminescent bacteria evaluates the acute to...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06F17/18G01N21/31G06Q50/06
CPCG01N21/31G06F17/18G06Q10/04G06Q10/06393G06Q50/06Y02A20/152
Inventor 李伟光吕龙义
Owner HARBIN INST OF TECH