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Device and method for detecting heavy metal element pollution distribution of soil

A technology of element pollution and detection device, which is applied in the field of pollution detection, can solve problems such as great influence, complicated sampling process, and inability to sample processing, and achieve the effects of fast speed, good detection accuracy, and easy analysis

Active Publication Date: 2018-06-19
广东中加检测技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its detection position is limited to one detection position, and a large amount of equipment is required for large-scale detection, and its detection is greatly affected by the external environment
[0008] The patent application with application number 2017108404384 discloses a soil sampling device, which uses a controllable drill bit and other devices to sample soil, but the sampling process is relatively complicated, and the sample cannot be further processed after sampling so that it can be directly detected

Method used

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  • Device and method for detecting heavy metal element pollution distribution of soil
  • Device and method for detecting heavy metal element pollution distribution of soil
  • Device and method for detecting heavy metal element pollution distribution of soil

Examples

Experimental program
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Embodiment 1

[0044] Such as Figure 1-5 , this embodiment mainly describes a detection device for the distribution of soil heavy metal element pollution, including a positioning rod group 1, a sampling system 2 and a breakdown spectrum analysis system 3;

[0045] The positioning rod group 1 comprises a first positioning rod 101, a second positioning rod 102 and a third positioning rod 103; the first positioning rod 101, the second positioning rod 102 and the third positioning rod 103 are provided with ultrasonic signal emission device, the frequencies of the ultrasonic signals emitted by the first positioning rod 101, the second positioning rod 102 and the third positioning rod 103 are all different;

[0046] The sampling system 2 includes: a sampling drill 201, a drill connecting pipe 202, a controllable three-way valve 203, an outlet pipe 204, a sampling pipe 205, and a sample processing chamber 206; one end of the drill connecting pipe 202 is connected to the sampling drill 201, and the...

Embodiment 2

[0054] The present embodiment detects the method based on the device of embodiment 1, a kind of detection method of soil heavy metal element pollution distribution, possesses and comprises the following steps:

[0055] 1) Arrange the positioning rods; arrange the first positioning rod 101, the second positioning rod 102 and the third positioning rod 103 at the site to be measured, the first positioning rod 101, the second positioning rod 102 and the third positioning rod The position of 103 is positioned at the edge position of the site that needs to be measured; The first positioning rod 101, the second positioning rod 102 and the third positioning rod 103 are grouped into a right triangle, wherein the first positioning rod 101 and the third positioning rod 103 are located at The acute angle vertex of the right triangle, the second positioning rod 102 is located at the right angle vertex;

[0056] 2) Determine the detection location; designate multiple detection points in the...

Embodiment 3

[0069]This embodiment mainly describes the specific detection process:

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Abstract

The invention belongs to the field of pollution detection, and especially relates to a device and a method for detecting the heavy metal element pollution distribution of soil. The device for detecting the soil heavy metal element pollution distribution of soil includes a positioning rod group, a sampling system and a breakdown spectrum analysis system. When the device is used to perform detection, the sampling system performs sampling and makes a sample during detection, the analysis system analyzes the sample, and the positioning device positions the sample. The device has the following advantages: the position of a drill bit can be detected in order to easily perform two-dimensional analysis and drawing on the heavy metal pollution condition in the whole site, sampling is performed while drilling, the sampled soil is detected or directly discarded, and the sample is extruded after being analyzed in order to form a cake and achieve easy and direct LIBS detection, so no splashing, good detection accuracy and fast speed are achieved; and the whole device is mounted on a mobile detection vehicle, so the device can realize mobile detection. A two-dimensional heavy metal pollution distribution map is drawn according to the above detection result, so the heavy metal pollution reason can be easily analyzed.

Description

technical field [0001] The invention belongs to the field of pollution detection, in particular to a detection device and method for heavy metal elements in soil, in particular to a detection device and method for the distribution of soil heavy metal element pollution. Background technique [0002] Heavy metal pollution of the soil refers to human activities, the content of trace metal elements in the soil exceeds the background value, and the excessive content caused by excessive deposition is collectively referred to as soil heavy metal pollution. [0003] Heavy metals in polluted soil mainly include mercury (Hg), cadmium (Cd), lead (Pb), chromium (Cr) and metalloid arsenic (As) and other elements with significant biological toxicity, as well as zinc (Zn) and copper with certain toxicity. (Cu), nickel (Ni) and other elements. Mainly come from pesticides, wastewater, sludge and atmospheric deposition, etc. For example, mercury mainly comes from mercury-containing wastewate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/39G01N1/08G01N1/28G01S5/26
CPCG01N1/08G01N1/286G01N21/39G01N2021/395G01S5/26
Inventor 吕晓东
Owner 广东中加检测技术股份有限公司
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