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Method and device for determining road surface heavy metal source and electronic equipment

A road surface, heavy metal technology, applied in material excitation analysis, instruments, complex mathematical operations, etc., can solve problems such as the inability to determine the source of urban road surface pollution, and achieve the effect of ensuring accuracy

Active Publication Date: 2020-06-12
SHENZHEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the embodiment of the present invention provides a method, device and electronic equipment for determining the source of heavy metals on the road surface, so as to solve the problem that the source of urban road surface pollution cannot be well determined in the prior art

Method used

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  • Method and device for determining road surface heavy metal source and electronic equipment
  • Method and device for determining road surface heavy metal source and electronic equipment
  • Method and device for determining road surface heavy metal source and electronic equipment

Examples

Experimental program
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Effect test

Embodiment 1

[0155] The implementation case area is located in Shenzhen City, Guangdong Province, and 32 typical road sections are selected as sampling points. The surface of all road sections is relatively flat and paved with asphalt. At the same time, the particles of different particle sizes and dissolved pollutants on the road surface were collected. In order to ensure that the accumulation of pollutants on the road surface had reached an equilibrium state, all samples in the study were collected when the last rainfall ended more than 7 days ago. Sampling point collection 4m 2 For road surface samples, simultaneously detect the total solid mass and particle mass of all particle sizes for each sample. At the same time, pollution source particles were collected, including brake pad particles LD, brake shoe particles SD, gasoline engine emission particles GE, diesel generator emission particles DE, tire wear particles TW, road asphalt particles AS, road aggregate particles AG and road su...

Embodiment 2

[0161] Quantitative calculation of sources of heavy metals on urban road surfaces with fewer simulated samples

[0162] Similar to Implementation Case 1, this implementation case is located in Shenzhen City, Guangdong Province. Collect road surface particles and pollution source particles of 32 typical road sections, including brake pad particles LD, brake shoe particles SD, gasoline engine emission particles GE, diesel generator emission particles DE, tire wear particles TW, road asphalt particles AS, road bone feed particles AG and road surrounding soil US. Pb, Zn, Cr, Cu, Ni and Fe in all road surface particles and pollution source particle samples were detected by inductively coupled plasma optical emission spectrometer, and the arithmetic mean of each metal concentration in road surface particles and pollution source particle samples was calculated by Matlab and the standard deviation of the lognormal distribution.

[0163] In this implementation, use 5000 groups of ran...

Embodiment 3

[0165] Quantitative calculation of sources of heavy metals on urban road surfaces with a small relative error

[0166] Similar to Implementation Case 1, this implementation case is located in Shenzhen City, Guangdong Province. Collect road surface particles and pollution source particles of 32 typical road sections, including brake pad particles LD, brake shoe particles SD, gasoline engine emission particles GE, diesel generator emission particles DE, tire wear particles TW, road asphalt particles AS, road bone feed particles AG and road surrounding soil US. Pb, Zn, Cr, Cu, Ni and Fe in all road surface particles and pollution source particle samples were detected by inductively coupled plasma optical emission spectrometer, and the arithmetic mean of each metal concentration in road surface particles and pollution source particle samples was calculated by Matlab and the standard deviation of the lognormal distribution.

[0167] In this implementation, 50,000 groups of random...

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Abstract

The invention relates to the field of road surface pollution sources, in particular to a method and device for determining a road surface heavy metal source and electronic equipment. The method comprises the following steps: acquiring heavy metal concentration data of target road surface particles and heavy metal concentration data of each pollution source particle; calculating a statistical variable of the heavy metal concentration of the particles on the surface of the target road and a statistical variable of the heavy metal concentration data of each pollution source particle; and calculating the heavy metal mass contribution of each pollution source according to the statistical variable of the heavy metal concentration of the target road surface particles and the statistical variableof the heavy metal concentration data of each pollution source particle, and determining the source of the heavy metal on the target road surface in each pollution source. The source of heavy metals on the surface of a quantitative target road is quantitatively calculated through the heavy metal concentration characteristics of each pollution source, the accuracy of a traceability result is ensured, and a reference basis can be provided for quantitatively determining the urban pollution source.

Description

technical field [0001] The invention relates to the field of road surface source pollution, in particular to a method, device and electronic equipment for determining the source of heavy metals on the road surface. Background technique [0002] Frequent traffic activities and human activities will produce a large amount of pollutants including heavy metals in the urban environment. In addition, in urban traffic activities, in addition to the emission of vehicle exhaust pollutants into the atmosphere, many pollutants are deposited and accumulated on the surface of urban roads. These pollutants are mainly attached to road surface particles, so road surface particles are considered to be the most important pollutant carriers on urban roads. [0003] Among the many pollutants attached to road surface particles, heavy metals are ubiquitous in urban environments and may pose serious risks to human health. Especially fine particles of heavy metals, which can easily migrate and tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/10G16C60/00G01N21/73
CPCG06F17/10G16C60/00G01N21/73Y02P90/30
Inventor 洪念刘安朱攀峰
Owner SHENZHEN UNIV
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