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J Hazard Mater

Title:		Chemical constituents in particulate emissions from an integrated iron and steel facility
Author(s):		Tsai JH; Lin KH; Chen CY; Ding JY; Choa CG; Chiang HL;
Address:		"Department of Environmental Engineering, Sustainable Environment Research Center, National Cheng-Kung University, Tainan, Taiwan"
Journal Title:		J Hazard Mater
Year:		2007
Volume:		20061230
Issue:		1-Feb
Page Number:		111 - 119
DOI:		10.1016/j.jhazmat.2006.12.054
ISSN/ISBN:		0304-3894 (Print) 0304-3894 (Linking)
Abstract:		"Particle emissions from four integrated iron and steel plant processes, i.e., coke making, sintering, cold forming, and hot forming, were investigated in this study. Particle compositions of 21 element species, 11 ionic species, elemental carbon (EC), organic carbon (OC) and 16 polyaromatic hydrocarbons (PAHs) were analyzed to create 'fingerprints' of the particles emitted from various processes in an integrated iron and steel plant. Results indicated that element compositions (0.11-0.42 g/g), water-soluble ions (0.34-0.52 g/g), elemental carbon (0.008-0.14 g/g), organic carbon (0.02-0.06 g/g) and PAHs (0.52-6.2 mg/g) contributed to the particle mass. In general, sulfur had a higher mass contribution than the other elements, which resulted from the use of coal, flux, heavy oil, and many recycled materials in the iron and steel plant. The particle mass contribution of potassium and chlorine in the sinter plant was higher than in other processes; this may be attributed to the lower boiling point and volatility of potassium. In addition, many recycled materials were fed into the sinter plant, causing a high concentration of potassium and chlorine in the particle phase. Eight PAH compounds were analyzed in the four processes. The carcinogenic compound Benzo(a)pyrene (BaP) was detectable only in the sintering process"
Keywords:		Air Pollutants/*analysis Carbon Coke Incineration Industrial Waste/*analysis *Iron Metallurgy Particulate Matter/*analysis Polycyclic Aromatic Hydrocarbons/analysis *Steel;
Notes:		"MedlineTsai, Jiun-Horng Lin, Kuo-Hsiung Chen, Chih-Yu Ding, Jian-Yuan Choa, Ching-Guan Chiang, Hung-Lung eng Research Support, Non-U.S. Gov't Netherlands 2007/02/06 J Hazard Mater. 2007 Aug 17; 147(1-2):111-9. doi: 10.1016/j.jhazmat.2006.12.054. Epub 2006 Dec 30"