Fine Dust Treatment for High-tech
Clean air technologies from DAS Environmental Experts.
Air pollution is a local, pan-European and hemispheric issue. Among the main air pollutants fine dust plays an essential role as it is incredibly small and the exposure to particulate matter can have detrimental health effects, especially respiratory problems.
Obvious sources for fine dust are forest fires, cars and trucks as well as construction sites. But also chemical reactions of gases, as they occur in many industrial processes form particulate matter. This is the case in semiconductor, photovoltaics, LED and Flat Panel Display manufacturing processes which are characterised by highly complex, multistage manufacturing processes that produce harmful waste gases.
Industries and References
Particulate Matter from Waste Gas Treatment
Many waste gas abatement processes require the extraction of dusts. Dusts from waste gases are very fine solid particles that can remain suspended in the air over extended periods of time. Particles with a diameter of more than ten micrometers are considered coarse dust and are caught by the nasal hairs or mucous membranes of the nasopharyngeal cavity. Dusts of particles smaller than ten micrometers (PM10) are called particulate matter, and if inhaled, can reach deeply into the lungs by way of the trachea and bronchial tubes.
Particles sized smaller than 2.5 micrometers are called fine particles (PM2.5) and sizes smaller than 0.1 micrometers are called ultrafine particles. Particulate matter comprised of PM10, PM2.5 and ultra-fine particles are difficult to treat because the micro particles pass with the exhaust through gas scrubbers and separators without getting caught in the scrubbing liquid which may also cause exhaust blockages.
DAS Environmental Expert developed the electrostatic dust collector specifically to collect such particulate matter. Our EDC systems are used in the semiconductor, solar and flat screen industries, and meet environmental regulations in LED manufacturing; particularly in regards to arsenic, where the system guarantees meeting the legally prescribed and extremely low emission limit values.
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