Comprehensive evaluation method of organic matter humification level

A comprehensive evaluation and humification technology, applied in material excitation analysis, fluorescence/phosphorescence, etc., can solve problems such as unavailability, and achieve the effects of low cost, fast evaluation speed, and high evaluation precision and accuracy

Inactive Publication Date: 2013-06-19
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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Problems solved by technology

[0003] The most commonly used research methods for the humification of organic matter are electron spin resonance and C 13 - NMR, however these two techniques are often aff

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  • Comprehensive evaluation method of organic matter humification level
  • Comprehensive evaluation method of organic matter humification level
  • Comprehensive evaluation method of organic matter humification level

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[0044] The invention provides a comprehensive organic matter humification evaluation method based on a projection pursuit model. The first is sample extraction and water-soluble organic matter index, then the fluorescence spectrum scanning and the calculation of the three types of existing humification index values, and the second is to calculate the humification index values ​​of the three types of organic matter through the projection pursuit model to obtain the best projection direction and the best projection value, based on the size of the best projection value for comprehensive evaluation of the humification level of organic matter,

[0045] The organic matter humification comprehensive evaluation method provided by the invention, its main steps are:

[0046] A) Sample collection and preparation of water-soluble organic matter. Samples were collected, water-soluble organic matter was extracted and purified, and its organic carbon content (DOC) was determined.

[0047] ...

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Abstract

The invention discloses a comprehensive evaluation method of organic matter humification level. The comprehensive evaluation method mainly comprises a first step of collecting samples, extracting and preparing water-solubility organic matter and measuring organic carbon content (DOC) of the water-solubility organic matter, a second step of measuring a three-dimensional fluorescence spectrum and calculating a humification value of the organic matter, a third step of carrying out normalization processing on the humification value, a fourth step of establishing a projection pursuit model, a fifth step of carrying out a solution method for the model, a sixth step of comprehensively evaluating the humification level of the organic matter. The comprehensive evaluation method is easy and fast to calculate and accurate in evaluation result.

Description

technical field [0001] The invention belongs to the field of solid waste treatment and resource utilization, and specifically relates to a method for comprehensively evaluating the humification level of organic matter by fitting a plurality of humification indicators into one through a projection pursuit model. Background technique [0002] Composting and landfilling are the two most commonly used treatment methods for organic waste. In the process of composting and landfilling, organic matter is finally stabilized through degradation and humification. The level of humification of organic matter directly affects the maturity and maturity of compost. Landfill stability. [0003] The most commonly used research methods for the humification of organic matter are electron spin resonance and C 13 - NMR, however these two techniques are often affected by the paramagnetic heavy metals contained in compost and landfill waste, once the compost and landfill waste contains heavy metal...

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Application Information

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IPC IPC(8): G01N21/64
Inventor 何小松席北斗李翔潘红卫李丹
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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