Technology on Pollution Prevention of Urban Construction Fugitive Dust

This paper discusses the pollution status of urban construction fugitive dust and put forwards the comprehensive prevention measures for urban construction fugitive dust. A complex-type chemical dust depressor with excellent performance is got through many experiments. The basic materials of dust depressor include calcium chloride with 5 wt%, magnesium chloride with 10 wt%, and calcium oxide with 2 wt%. The auxiliary material is sodium dodecyl benzene sulfonate with 0.01 wt%. The best amount of spraying for dust depressor is 0.8 L/m². The dust depressor has perfect properties of moisture retention, wind-resistance, temperature-resistance and water-resistance.