Real-time detection system for in-situ heavy metal distribution of soil profile
A soil profile and real-time detection technology, applied in the field of spectral analysis, can solve the problems of poor timeliness, high cost, and inability to meet the rapid detection of soil heavy metals in soil pollution investigations, and achieve the effect of improving detection efficiency
Active Publication Date: 2021-05-04
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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Problems solved by technology
[0004] In order to solve the technical problems of poor timeliness and high cost of existing technologies, the inability to meet the requirements of soil pollution investigation and in-situ remediation of soil for rapid detection of heavy metals in soil, and the technical problems of inability to directly detect the vertical profile distribution of heavy metals in soil in real time and in situ, the present invention The purpose is to meet the technical requirements of soil pollution investigation and site in-situ remediation for rapid detection of soil heavy metals and acquisition of soil heavy metal distribution information. For this reason, this invention proposes a real-time detection system for in-situ heavy metal distribution in soil profiles
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[0027] The present invention will be described in detail below in conjunction with the accompanying drawings. As a part of this description, the principle of the present invention will be described through implementation. Other aspects, features and advantages of the present invention will become clear through the detailed description.
[0028] see figure 1 A real-time detection system showing the in-situ distribution of heavy metals in a soil profile of the present invention mainly includes: a power supply unit 1, a control unit 2, a detection unit 3 and a detector 4, wherein:
[0029] A power supply unit 1, configured to provide a driving voltage signal;
[0030] The control unit 2 is connected with the power supply unit 1, receives the driving voltage signal, and is used to control and send a working sequence instruction, and is used to control and send an opening instruction and a closing instruction of the detection window;
[0031] The detection unit 3 is connected with...
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The invention provides a real-time detection system for in-situ heavy metal distribution of a soil profile. The real-time detection system comprises a power supply unit for providing a driving voltage signal, a control unit connected with the power supply unit for receiving a driving voltage signal and used for controlling and sending a working time sequence instruction and controlling and sending an opening instruction and a closing instruction of a detection window, a detection unit connected with the control unit for receiving a working time sequence instruction and used for obtaining a spectral signal and a laser pulse, receiving a soil plasma spectrum, carrying out soil plasma spectrum analysis identification and heavy metal concentration quantitative inversion, and directly giving out heavy metal type and concentration information, and a detector connected with the detection unit for receiving the laser pulse and used for performing in-situ ablation on the sample of the soil profile to obtain a soil plasma spectrum. According to the system, the heavy metal distribution and concentration information of the polluted area can be rapidly obtained, accurate data support is provided for soil remediation, data support is provided for site remediation method selection and agent addition, and site remediation efficiency is remarkably improved.
Description
technical field [0001] The invention belongs to the technical fields of spectral analysis, environmental pollution detection and electromechanical technology, and relates to a real-time detection system for in-situ heavy metal distribution in soil profiles. Background technique [0002] Heavy metals are the most concerned pollutants in the field of soil environment, which pose a huge threat to my country's industrial and agricultural production and residents' health. At present, the detection of heavy metals in soil is mainly based on laboratory analysis methods. Common methods include inductively coupled plasma mass spectrometry, flame atomic absorption spectrometry, inductively coupled plasma spectrometry, etc. These methods are qualitative and quantitative based on the spectral or mass spectral characteristics of heavy metal elements in soil , is widely used all over the world. National standards such as my country's "Soil Environmental Quality Standards - Agricultural L...
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Login to View More IPC IPC(8): G01N33/24
CPCG01N33/24Y02A90/30
Inventor 孟德硕赵南京马明俊方丽殷高方甘婷婷杨瑞芳
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI