Electron paramagnetic resonance technology-based method and equipment for detecting oil leakage in water
A technology of electron paramagnetic resonance and technical detection, which is applied in the fields of analysis, water resource assessment, and climate sustainability by using electron paramagnetic resonance. problems, to achieve the effect of avoiding complex analysis, simple method and high reliability
Inactive Publication Date: 2012-10-03
HEFEI DINGCHI INSTR
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[0006] The technical problem to be solved by the present invention is to provide a method and device for detecting oil leakage in water using electron paramagnetic resonance technology, which solves the problems of long analysis time, complicated detection process, large detection equipment, and the need to add reagents in existing detection technologies.
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[0015] See figure 1 , a device for detecting oil leakage in water using electron paramagnetic resonance technology, including a microwave module, a magnetic field module, a resonator module, a signal detection module and a data processing module; the microwave module includes a microwave source 1, a power amplifier 2 and The circulator 3; the magnetic field module includes a Helmholtz coil 4, a permanent magnet 5 arranged on the Helmholtz coil 4, a magnetic field sensor 6 arranged in the Helmholtz coil 4, and the Helmholtz coil respectively 4 and a magnetic field controller 7 connected to the magnetic field sensor 6; the resonator module is a resonator 8 arranged in the Helmholtz coil 4 and connected to the circulator 3; the signal detection module includes a low noise amplifier connected to the circulator 3 in turn 9, detection diode 10 and lock-in amplifier 11; Data processing system module is computer 12; Lock-in amplifier 11 is connected with magnetic field controller 7; M...
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The invention discloses an electron paramagnetic resonance technology-based method and equipment for detecting oil leakage in water. The method comprises the following steps: firstly, a water sample is placed in a uniform static magnetic field; and a microwave signal meeting the detection of the water sample is coupled with the water sample and generates a detection feedback signal via the uniform static magnetic field, and the detection feedback signal is amplified via demodulation and then is input into a computer for analysis, so as to obtain a detection result. The electron paramagnetic resonance technology-based method has the characteristics that the reliability is high, the operation is simple, no reagent is used in the detection equipment and the identification is quick, avoids the defects of a convention method, including complex analysis, long analysis period, secondary pollution of reagent and the like, and belongs to environmentally-friendly methods. The method and equipment disclosed by the invention are suitable for rivers, lake and surface water environmental monitoring, ocean water quality environment monitoring, ships and navy ship sewage discharge monitoring and the like.
Description
[0001] technical field [0002] The invention relates to the technical field of oil leakage detection in water, in particular to a method and a device for detecting oil leakage in water by using electron paramagnetic resonance technology. Background technique [0003] Petroleum pollution to water bodies is a major issue of global concern. Petroleum pollutants in water bodies are one of my country's environmental protection decisions to implement total pollutant discharge control projects. The eight water quality pollutants are: chemical oxygen demand (CODcr), Petroleum, total cyanide, total arsenic, total mercury, total lead, total cadmium, and hexavalent chromium. Petroleum ranks after CODcr, and is the second key pollutant emission control index after CODcr. Statistics show that my country discharges more than 80,000 tons of oil pollutants every year, and the oil in major rivers such as the Yangtze River, Yellow River, Huaihe River, Pearl River, and Songhua River in my count...
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IPC IPC(8): G01N24/10
CPCY02A90/30
Inventor 徐南阳
Owner HEFEI DINGCHI INSTR