Pollution detection method of soil multi-pollutant identification probe based on multi-spectral and time-domain reflectance

Abstract

The invention discloses a pollution detection method of a soil multi-pollutant identification probe based on multi-spectrum and time domain reflection. The polyether ether ketone insulating rod and the cone head are coaxially connected, and the gold-plated stainless steel probe is inlaid and fixed on the outer surface of the polyether ether ketone insulating rod; the polyether ether ketone insulating rod and the stainless steel probe rod are coaxially connected. The side wall is drilled, and the drilled hole is inlaid with an alumina glass lens. The stainless steel probe at the drilled hole is equipped with a multi-spectral detection module composed of an endoscopic image sensor, a 280nm wavelength UV LED, a 325nm wavelength UV LED and a flat mirror; detection Obtain soil dielectric constant, electrical conductivity and other indicators to characterize the content of ionic pollutants, 325nm fluorescence intensity, 280nm fluorescence intensity and soil pictures, characterize the content of humic acid, polycyclic aromatic hydrocarbons and other pollutants and reflect soil types. The invention is easy to carry, quickly obtains content information of multiple pollutants, and is suitable for in-situ deep detection of solid waste landfill sites and other scenarios.

Description

technical field [0001] The invention relates to a probe and a detection method in the technical field of site pollution in-situ detection, in particular to a deep penetration detection device and a detection method based on multispectral and time domain reflection for detecting multiple soil pollutants. Background technique [0002] There are more than 20,000 existing landfills in my country, including 27,000 simple landfills that were built without regulations in the early days and more than 1,800 sanitary landfills built according to the national standards at that time. Most of these landfills do not meet the requirements of my country's current standards, and are prone to three major environmental disasters: landfill landslides, leachate leakage to pollute groundwater and soil, and landfill gas spillage to pollute the air. Data from the China National Environmental Monitoring Station shows that 85% of the 345 landfills have serious leakage. Taking the Beitian Landfill in ...

AI Technical Summary

Problems solved by technology

A real-time in-situ detection device for soil pollution based on laser fluorescence induction technology (CN201811224897.0) is an existing domestic probe detection product, but the invention does not clearly define the type and content of pollutants, and does not analyze the fluorescence signal Carry out quantitative analysis, and the target pollutants are too simple

There are relatively mature multi-spectral in-situ detection probes that are not authorized in my country

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