A method for the detection of pollutants by computer-aided Fourier transform infrared spectroscopy
A Fourier transform, computer-aided technology, applied in the direction of measuring devices, material analysis through optical means, instruments, etc., can solve the problems of hysteresis of detection results, poor accuracy of detection results, complicated operation process, etc.
Active Publication Date: 2018-07-06
INNER MONGOLIA UNIV OF SCI & TECH
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[0014] In the existing technologies including the above documents, the analysis of leachate is mostly carried out by gas chromatography or other combined detection methods, and the analysis of leachate is mostly carried out by full component analysis, resulting in a complicated and time-consuming entire operation process. The result has a serious hysteresis, and the accuracy of the detection result of a single substance is poor
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[0068]The following analysis system is used to analyze the leachate pollutants in biological waste, and the key pollutants include 3-methylpyrazine, ethylamine and naphthalene. The system includes: infrared spectrometer, infrared spectrometer exhaust port, sample bottle, filter, pipeline and connecting piece, sample heating temperature control device, infrared spectrometer sample inlet, and computer, wherein the sample bottle is connected to the filter through the pipeline and connecting piece, and the filter is connected to the infrared spectrometer through the pipeline and connecting piece The sample port is connected, and the exhaust port of the infrared spectrometer is connected to the sample bottle through pipelines and connectors. The sample bottle is equipped with a sample heating and temperature control device; during detection, nitrogen bubbles through the sample bottle containing the leachate sample aqueous solution , remove moisture or other interfering gases through...
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Abstract
A method of detecting pollutants with computer-assisted Fourier transform infrared spectroscopy is disclosed in the invention and comprises: (1) pre-treatment of samples; (2) scanning of base lines; (3) acquisition of spectrums; (4) extraction of characteristic variables; and (5) spectrogram processing. The method aims to quickly and accurately analyze components generating bad smell in household garbage leachate, and correspondingly, aims to improve a conventional Fourier transform infrared spectroscopy, so that the components can be analyzed simply, quickly, high-effectively and accurately, thereby performing real-time monitoring to management of a biological garbage landfill conveniently.
Description
technical field [0001] The invention belongs to the technical field of environmental detection, in particular to a method for detecting pollutants by computer-aided Fourier transform infrared spectroscopy, and more particularly, to a method for detecting pollution in domestic waste landfills by computer-aided Fourier transform infrared spectroscopy and, most particularly, to a method for the detection of contaminants in leachate from domestic waste landfills by computer-aided Fourier transform infrared spectroscopy. Background technique [0002] Landfill leachate refers to the sewage filtered out due to the fermentation, showering and washing of rainwater, as well as the immersion of surface water and groundwater during the process of stacking and landfilling garbage. The particularity of its formation has led to the complexity of water quality and has become An important source of groundwater, surface water and soil pollution, as well as pollution of the surrounding environ...
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IPC IPC(8): G01N21/3577
Inventor 许嘉张利文于勇海陈义胜籍晓宇
Owner INNER MONGOLIA UNIV OF SCI & TECH