Chaulya, S.K. and Chowdhury, A. and Kumar, Sunil and Singh , R.S. and Singh, S.K. and Singh, R.K. and Prasad, G.M and Mandal, S.K. and Banerjee , G. (2021) Fugitive dust emission control study for a developed smart dry fog system. Journal of Environmental Management . ISSN 0301-4797

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Abstract

Air pollution due to dust emission is continuously increasing day by day in mining and allied industrial areas. Mining operations contribute a substantial amount of dust emission at the crushing, screening, and bulk material handling in loading areas. The ambient suspended dust particles create a severe nuisance to workers and local dwellers. For effective controlling of positive dust emission, an innovative automated dry fog dust suppression system (DFDSS) has been developed using hybrid nozzles, sensors, actuators, controllers, screw compressors, air receivers, pumps, motors, and water arrangement with filtration facility. The DFDSS was installed in a crushing and screening plant of an iron ore mine in India. Performance study indicted fugitive dust emission concentration values ranged from 354 to 7040 μg m− 3 , which was reduced to 91–300 μg m− 3 after installation of DFDSS. The reduced values were within the permissible limit of 1200 μg m− 3 at a distance of 25 ± 2 m in the predominant downwind direction. The installed DFDSS added a meager addition of moisture content of 0.032% in the handling iron ore material, which was below the acceptable limit of 0.1%. The DFDSS precisely regulated fugitive dust emission from various mining activities without affecting the minerals processing performance. Thus, the DFDSS can be implemented effectively in different mining and allied industries where there is a dust emission problem.

Item Type:	Article
Uncontrolled Keywords:	Dust suppression Dry fog system Hybrid nozzle Fugitive dust emission Moisture addition in handling ore
Subjects:	Instrumentation
Divisions:	UNSPECIFIED
Depositing User:	Mr. B. R. Panduranga
Date Deposited:	10 Feb 2021 07:10
Last Modified:	10 Feb 2021 07:10
URI:	http://cimfr.csircentral.net/id/eprint/2322

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