Industrial pollution is one of the main sources of environmental pollution in China. The latest two scientific research achievements of the Anhui Institute of Optomechanics, Chinese Academy of Sciences can provide effective technical means for monitoring industrial pollution sources. On May 30, the “Portable Multi-Component Gas Ultraviolet Field Analyzer†and “Pollution Source Emissions†in the national “863 Program†in the field of resource and environmental technology key topics “Industrial Source Multi-component Gas Pollution Emissions Field Monitoring Equipment†At the scientific and technological achievement appraisal meeting organized by the Anhui Provincial Department of Science and Technology, the two scientific and technological achievements of "Telemetry Technology System" are considered to have achieved comprehensive international performance indicators.
At present, China is facing severe air pollution problems, with a large amount of pollution sources, a wide variety, and different emission laws, which pose a serious threat to human health, environmental quality, and ecosystems. However, the types, concentrations, temporal and spatial distribution and emissions of pollution sources The measurement of the total amount is the basis for the environmental protection department to carry out pollution reduction control. These two achievements can be applied to the monitoring of multiple pollution sources, realizing on-site rapid monitoring and long-distance remote measurement of toxic and harmful organic substances emitted by many types of pollution sources such as gas leaks, fugitive emissions, flue gas emissions, and production plant areas. The on-site supervisory monitoring and emergency monitoring have broad industrialization and market prospects.
The “Portable Multi-Component Ultraviolet Field Analyzer†undertaken by the Key Laboratory of Environmental Optics and Technology of the Anhui Institute of Optics and Mechanics, Chinese Academy of Sciences is aimed at industrial parks, unorganized emissions, gas leaks and other on-site monitoring needs, using differential absorption spectroscopy technology and ultraviolet multiple reflection The combination of cell technology and optical fiber spectrometer technology realizes the rapid on-site monitoring of a variety of toxic and harmful gases (SO2, NO2, benzene, toluene, H2S, Cl2, NH3, butadiene, CS2, HCHO, etc.), with a small, portable Features. The system has innovations in the design of high-efficiency UV-absorbing optical systems and inversion algorithms for multi-component spectral data. The application demonstration of the chemical plant area, power plant area and motor vehicle exhaust emission monitoring shows that the performance of the instrument is stable and can meet the requirements of on-site monitoring of unorganized sources, industrial emissions and motor vehicle emissions. The "Pollution Source Emission Telemetry Technology System" has designed a two-dimensional scanning multi-optical path pollution source emission pollutant gas remote measurement system, which realizes the emission flux and distribution of pollutant gas SO2, NO2 and other pollutants from a distance of tens to hundreds of meters. , Suitable for fixed-point, vehicle-mounted platforms. The system was demonstrated during the Shanghai World Expo and the Guangzhou Asian Games. The results show that the system has stable performance and reliable data, and provides an effective remote measurement method for major industrial pollution sources.
The appraisal expert group believes that the design ideas and technical routes of the "portable multi-component gas ultraviolet field analyzer" and "pollution source emission remote measurement technology system" developed by Anguang have solved the problem of using ultraviolet differential absorption spectroscopy to meet the measurement of multiple gases. Difficulties in miniaturization of instruments, as well as key technologies such as pollutant emission gas flux and spatial distribution telemetry, fill the gaps in domestic corresponding technologies and equipment, and the overall performance reaches the international advanced level.
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