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Method for comprehensive testing and evaluating biological degradability of organics

A biodegradability and evaluation method technology, applied in the field of sewage treatment and organic matter environmental behavior evaluation, to achieve the effect of simple and fast calculation, comprehensive evaluation and classification, and accurate classification

Inactive Publication Date: 2002-10-02
TSINGHUA UNIV
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Problems solved by technology

[0005] The purpose of the invention is to address the deficiencies and defects in the prior art, comprehensively considering multiple aspects of the biodegradation process, from the comprehensive water quality index BOD of organic matter 5 / COD, degradation product CO 2 1. The microbial physiological and biochemical index ATP is used as a comprehensive evaluation factor to provide a comprehensive test and evaluation method for the biodegradability of organic matter, which overcomes the shortcomings of inconsistent evaluation results due to different single test methods, and makes the evaluation and classification of biodegradability of organic matter more comprehensive and accurate. Credibility

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  • Method for comprehensive testing and evaluating biological degradability of organics
  • Method for comprehensive testing and evaluating biological degradability of organics
  • Method for comprehensive testing and evaluating biological degradability of organics

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Embodiment

[0033] The following takes phenol as an example to illustrate the comprehensive evaluation process of its biodegradability:

[0034] (1) Carry out the phenol biodegradation experiment and a blank experiment according to steps 1 and 2, respectively.

[0035] (2) Determination of the BOD of the solution in the phenol reaction bottle 5 and COD value, measured BOD 5 =161.8mg / L, COD=311mg / L, calculate IO=(BOD 5 / COD)×100=52.

[0036] (3) Regularly measure the CO in the two experimental bottles 2 and the ATP values ​​of the sludge, and plot the CO 2 and ATP curves with time, such as Figure 5 with Image 6 shown.

[0037] (4) from Figure 5 The A of the blank experiment can be calculated in 0 =56.00,A s =122.80, calculate IB=(As / A 0 )×100=219.3.

[0038] (5) from Image 6 The peak time PT of phenol can be obtained in 4 days, and the peak height P of the blank experiment 0 =3.6, the peak height P of phenol s =34.5, then PI=P s / P 0 = 9.6, so IA = (PI / PT) x 100 = 239....

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Abstract

A method of comprehensive test and evaluation for an organic biobody degradation relates to an evaluation method and technology for organic biobody environment behaviour to make the organic comprehensive water quality target BOD5 / COD, the product CO2 of degradation and microbe physiological chemistry target ATP as the comprehensive evaluation factors and or the bases of classifying evaulation of fuzzy mathematics to apply the fuzzy gathering comprehensive evaluation method and weighted comprehensive evaluation method programming process of operation of computers with accurate classification simple and quick counting to eliminate the error brought by the determination of weighting by people to accurately express the organic biobody degradation performance to make the evaluation result directly to overcome the short comes of different evaluation results with different single test method.

Description

technical field [0001] The invention relates to a method for testing and evaluating the biodegradability of organic matter, belonging to the fields of sewage treatment and environmental behavior evaluation of organic matter. Background technique [0002] The biodegradability of organic matter refers to the degree to which organic matter can be decomposed and transformed under the action of microorganisms to cause changes in physical and chemical properties and molecular structure. So far, many methods have been proposed in the research on the identification of biodegradability of organic matter. These evaluation methods of biodegradability of organic matter only consider a certain aspect of the process of biodegradation of organic matter, but do not fully consider the impact on the biodegradation of organic matter. other factors. Adopted BOD in ISO10708 5 / COD ratio to determine the biodegradability of organic matter, but this ratio can only reflect the consumption of oxyg...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12Q1/02G01N33/18G01N35/00
Inventor 蒋展鹏杨宏伟师绍琪
Owner TSINGHUA UNIV
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