Method for detecting heavy metal content of coal gangue filling reclamation reconstruction soil based on high spectrum technology

A technical detection and heavy metal technology is applied in the field of detecting heavy metal content in coal gangue filling and reclamation reconstruction based on hyperspectral technology, which can solve the problems of entering the human body, increasing difficulty in quantitative detection, pollution, etc. The effect of promoting development and application

Inactive Publication Date: 2017-05-10
ANHUI UNIV OF SCI & TECH +1
View PDF4 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Coal gangue produced during coal mining can be used as a matrix to fill subsidence areas, but the heavy metal elements it carries will affect the safety of the soil
On the one hand, heavy metal pollution to soil is irreversible in th

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for detecting heavy metal content of coal gangue filling reclamation reconstruction soil based on high spectrum technology
  • Method for detecting heavy metal content of coal gangue filling reclamation reconstruction soil based on high spectrum technology
  • Method for detecting heavy metal content of coal gangue filling reclamation reconstruction soil based on high spectrum technology

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1

[0026] This embodiment provides a method for detecting heavy metal content in coal gangue filling and reclamation soil based on hyperspectral technology, including the following steps:

[0027] (1) On-site sampling: In the coal gangue filling and reclamation area, first randomly select sampling points, and then collect multiple samples at each sampling point in a plum blossom pile type according to the set soil depth, and randomly divide the multiple samples into prediction Set samples and calibration set samples;

[0028] (2) Collect the sample spectrum curve: use indoor darkroom measurement, geometrically arrange the light path, use black velvet cloth as the background, and use the ASD FieldSpec4 portable surface spectrometer to collect the spectrum curve graph of the sample; in this embodiment, the light source is a 1000W halogen lamp , 5° field of view, the angle between the illumination direction of the light source and the vertical direction is 15°, the dist...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a method for detecting a heavy metal content of coal gangue filling reclamation reconstruction soil based on a high spectrum technology. The method comprises the steps of performing sampling on site; collecting a sample spectrum curve; performing data processing; constructing a high spectrum estimation model for inverting soil heavy metal content; constructing a partial least squares regression model; and finally utilizing the partial least squares regression model to detect the heavy metal content of the coal gangue filling reclamation reconstruction soil. Compared with a conventional multiple linear regression analysis method, according to the method, the problem of multicollinearity faced by the multiple linear regression analysis method is solved, spectral information can be summarized and extracted, system information and noise are identified more easily, and thus the content of heavy metal elements can be quantitatively inverted accurately. The simple and quick detection method is provided for large-area low-cost investigation and monitoring of heavy metal pollution of mine lot reclamation land soil, technical means are provided for guaranteeing mine lot reclamation land crop safety, and development and application of a high spectrum remote sensing technology are promoted.

Description

technical field [0001] The invention relates to a method for detecting heavy metal content in soil, in particular to a method for detecting heavy metal content in reclaimed and reconstructed soil filled with coal gangue based on hyperspectral technology. Background technique [0002] Coal gangue produced during coal mining can be used as a matrix to fill subsidence areas, but the heavy metal elements it carries will affect the safety of the soil. On the one hand, the pollution of heavy metals to soil is irreversible in the short term and may enter the human body through the food chain; on the other hand, the complex spatial heterogeneity of soil makes it difficult to quantitatively detect the spatial distribution and spatial correlation of heavy metals in soil. [0003] With the development of hyperspectral remote sensing technology, it provides a powerful tool for quantitative prediction and analysis of heavy metal pollution in soil due to its high spectral resolution, mult...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N21/55
CPCG01N21/55G01N2021/558
Inventor 徐良骥刘曙光朱小美李青青许正刚姚军
Owner ANHUI UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap