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Locating and harmless recycling method for polychlorinated biphenyl capacitor stored in sealed manner

A technology of polychlorinated biphenyls and capacitors, applied in the field of pollutant treatment, can solve the problems of poor preservation of sealed materials, inability to find accurate locations, and threats to people's health, and achieve the effects of rapid processing, short processing time, and accurate and fast positioning.

Active Publication Date: 2017-05-31
SHENYANG ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Even many storage sites have been unable to find the exact location of the original storage due to reasons such as long storage time, large changes in personnel, and poor preservation of the storage materials. This has made the local environment and the health of the people face potential serious threats at all times.

Method used

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  • Locating and harmless recycling method for polychlorinated biphenyl capacitor stored in sealed manner
  • Locating and harmless recycling method for polychlorinated biphenyl capacitor stored in sealed manner

Examples

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Effect test

Embodiment 1

[0017] A positioning and harmless retrieving method for sealed polychlorinated biphenyl capacitors, comprising the following steps:

[0018] 1) Use the PMG-1 high-precision proton magnetometer produced in the Czech Republic to conduct magnetic measurements on the ground, test the total geomagnetic field △T value at each point, and draw the contour plan of the total geomagnetic field on the ground. The highest field value is used as the projection position of the target object on the ground;

[0019] 2) Use the Wenner device to scan and measure the fixed section with the section line as the unit, use the high-density resistivity method to calculate the measured data, and draw the contour map. The center of the closed part in the contour map is the possible storage Suspected areas of PCB capacitor enclosures or other obstacles should be avoided in subsequent steps;

[0020] 3) Take the projection position of the target object on the ground as the center, draw a circle with a ra...

Embodiment 2

[0024] A positioning and harmless retrieving method for sealed polychlorinated biphenyl capacitors, comprising the following steps:

[0025] Step 1: Prospecting and Positioning

[0026] Many of the sealed PCB power installations are buried deep underground. Due to the long storage time, it is difficult to find the parties concerned, and there is a lack of relevant original archives. Many of them can only determine the approximate storage location. In order to locate the storage location economically, quickly and accurately, it is necessary to use certain technical means to determine it. This method innovatively uses the geophysical prospecting method commonly used by the geological survey department to initially locate the underground storage point of capacitors containing PCBs, and then conducts further verification in combination with drilling or manual excavation, so as to finally determine the waste capacitors containing PCBs. Archive location.

[0027] 1. High precision...

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Abstract

The invention discloses a locating and harmless recycling method for a polychlorinated biphenyl capacitor stored in a sealed manner. The locating and harmless recycling method comprises the following steps: (1) carrying out magnetic survey on the ground through a proton magnetometer; (2) carrying out fixed section scanning measurement through a Wenner device by taking a section line as a unit; (3) carrying out drilling sampling through a drill or a Luoyang shovel, drawing a PCBs content contour map, and determining a sealed storage position of the polychlorinated biphenyl capacitor; and (4) clearing away soil around the sealed storage position according to a sequence from inside to outside. According to the locating and harmless recycling method, equipment is simple, and the treatment speed is high; and the sealed storage position is located by using a method combining a high-precision magnetic method and a high-density electrical method, so that the position is accurately and quickly located, the treatment time is short, thorough treatment is achieved, and no high-pollution residue is retained.

Description

technical field [0001] The invention belongs to the technical field of pollutant treatment, and in particular relates to a method for positioning and harmless recovery of sealed polychlorinated biphenyl capacitors. The method of recycling. Background technique [0002] Polychlorinated biphenyls (PCBs) are a group of chemically stable chlorinated hydrocarbons. Because they are difficult to degrade in nature, persist for a long time, and can be concentrated through the food chain, they have serious biological toxicity and are potentially harmful to humans. It is recognized as one of the most serious pollutants in the world, and its production and use have been banned by various countries. Dealing with residual polychlorinated biphenyls (PCBs) has become an important issue in environmental protection. [0003] At present, the PCB power devices sealed up in my country have far exceeded the "storage period of no more than 20 years" regulations, and after long-term storage, ther...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00G01N1/08G01N1/34G01N33/24G01V3/00G01V3/40
CPCB09B3/00G01N1/08G01N1/34G01N33/24G01V3/00G01V3/40
Inventor 邢峰黄相国陈刚邵春岩崔涤尘许增贵陈朝中刘光聪刘博樊巍巍王小娜
Owner SHENYANG ACAD OF ENVIRONMENTAL SCI
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