SMOKE PRECIPITATIONby | 16-05-2016 19:53 |
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Smoke coming out of the chimneys contain colloidal carbon particles dispersed in air. Since carbon particles carry an electric charge, they remain suspended in air. The charge on the colloidal carbon particles is removed by the use of electrical precipitator. Thus, carbon particles from smoke get precipitated. Electrical precipitator was devised by Cottrell. In this method, smoke is passed through a chamber. The chamber carriers a knob, which is charged to a very high potential. The charged carbon particles on coming in contact with the knob lose their charge and fall down. The carbon particles settle down at the bottom while the gases free from carbon particles pass out of the chimney. Smoke precipitation can go along way in mitigating climate change and global warming. |
