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Small integrated dangerous chemical and waste classification and verification method and device

A technology for hazardous waste and waste products, which is applied in the field of small-scale integrated hazardous chemical and hazardous waste classification and verification, and can solve the problems of high cost, difficulty, and little significance in the purchase and use of large-scale laboratory equipment

Inactive Publication Date: 2019-07-09
陈曦
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] For medium-sized and small-sized handheld spectrometers, firstly, various spectral analysis techniques can only identify a part of chemicals, but cannot identify mixtures of ionic compounds. Start detection; in addition, spectroscopic analysis requires high-purity chemical samples, and most of the chemicals encountered in the actual emergency scene are mixtures, which cannot be detected without purification
[0009] For large-scale laboratory equipment such as mass spectrometry and gas chromatography, although the accuracy is high and the technology is mature, it cannot be brought to the scene for rapid detection, and the purchase and use of large-scale laboratory equipment is expensive. For the requirements of dangerous on-site operations, it is of little significance to send it to the laboratory for identification that can range from a few hours to a few weeks.

Method used

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  • Small integrated dangerous chemical and waste classification and verification method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0188] Wear safety protective equipment.

[0189] Such as figure 1 As shown, the sample is tested for flammability, oxidation, and corrosion first. If the sample is verified as flammable, explosive, strong oxidizing, or strong corrosive, it will be directly judged as a dangerous product, and the unknown solid detection process will not be carried out. And unknown liquid detection process. This product can quickly find explosives and fire hazards. However, more analysis of these two dangerous goods is not carried out, because the first pair of users may cause danger, and the second is of little significance to continue to analyze explosives in real operational emergencies.

[0190] If the sample is verified to have the characteristics of explosion and fire in contact with water, the unknown solid detection process and unknown liquid detection process will no longer be carried out; otherwise, water solubility and water reaction will continue, and then the unknown solid detecti...

Embodiment 2

[0193] On the basis of Example 1, sample 1 is carried out to continue testing, such as image 3 shown. For the test reactions involved in the following steps see Figure 4-10 , which will not be repeated here.

[0194] A1, Observation of properties: Sample 1 is an opaque and transparent liquid, not sticky; and it is found that it evaporates quickly, suggesting a potentially dangerous gas-it takes 15 seconds.

[0195] A3, Oxidation and acid reaction test: no reaction, discharge of oxidative hazard - it takes 30 seconds.

[0196] A9, Water Solubility and Water Reaction Test: Float on the water surface to eliminate the risk of water reaction and water reaction - it takes 30 seconds.

[0197] A14, flammability test: flammable - takes 30 seconds;

[0198] A22, iodine reaction test: brown, certified as gasoline - takes 60 seconds.

[0199] So far, it can be verified that sample 1 is gasoline; sample 1 is actually: gasoline. Both match.

Embodiment 3

[0201] On the basis of Example 1, sample 2 is carried out to continue testing, such as image 3 shown. For the test reactions involved in the following steps see Figure 4-10 , which will not be repeated here.

[0202] A1, Observation of properties: Sample 1 is an opaque liquid, not sticky - it takes 15 seconds.

[0203] A3, Oxidation and acid reaction test: , no reaction, discharge oxidative hazard - it takes 30 seconds.

[0204] A9, water solubility and water reaction test: dissolve, eliminate the risk of water reaction and water-it takes 30 seconds.

[0205] A15, pH test: pH 7, excluding corrosive hazard - takes 30 seconds.

[0206] A24, Flammability Test: Flammable and pH 7 - takes 30 seconds.

[0207] A28, Ketone test: Negative result, do alcohol test. A positive alcohol test results in methanol, ethanol, or propanol—takes 120 seconds.

[0208] So far, it can be determined that it is methanol, ethanol or propanol. Sample 1 is actually Erguotou liquor (ethanol). D...

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Abstract

The invention provides a small integrated dangerous chemical and waste classification and verification method and device. According to the method, the using combustibility, oxidability, corrosivity, water solubility and water reaction of an unknown solid or unknown liquid are respectively tested, so as to judge the dangerous features of the unknown solid or unknown liquid; and classification is carried out according to the features, an unknown solid detection process is carried out on the unknown solid, and an unknown liquid detection process is carried out on the unknown liquid so as to complete the classification and verification operation. The device is a small and portable box designed on the basis of the method. The device is small, portable and high in flexibility; the method does not have requirement for the purity of samples; the verification is rapid; the cost is low; the practicability and reliability are high, the dangerous objects can be rapidly classified and treated, so that the practicability and professionality are strong, and the common technicians can familiarly use the device and the method through professional training; and the device and the method are suitablefor field emergency and field analysis.

Description

technical field [0001] The invention belongs to the technical field of detection, especially a small-scale integrated hazardous chemical and hazardous waste classification verification method and equipment, which can be used in firefighting / special service / public security / customs departments to carry out on-site emergency, accident, leakage and inspection of unknown hazardous chemical cases ; It can also be used in the safety supervision department to carry out the safety inspection of chemical plants; it can also be used in the environmental protection department to carry out the inspection of the disposal of hazardous waste. Background technique [0002] Hazardous chemicals refer to chemicals that are flammable, explosive, poisonous, harmful, and radioactive, and are likely to cause casualties and property damage during transportation, loading, unloading, and storage, and require special protection. [0003] Hazardous waste refers to hazardous waste, which refers to waste ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01N21/25G01N21/78G01N21/80G01N25/00
CPCG01N33/00G01N33/0001G01N21/78G01N21/80G01N21/25G01N25/00
Inventor 陈曦
Owner 陈曦
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