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- Title
Chemometric Study of the Ex Situ Underground Coal Gasification Wastewater Experimental Data.
- Authors
Smoliński, Adam; Stańczyk, Krzysztof; Kapusta, Krzysztof; Howaniec, Natalia
- Abstract
The main goal of the study was the analysis of the parameters of wastewater generated during the ex situ underground coal gasification (UCG) experiments on lignite from Belchatow, and hard coal from Ziemowit and Bobrek coal mines, simulated in the ex situ reactor. The UCG wastewater may pose a potential threat to the groundwater since it contains high concentrations of inorganic (i.e., ammonia nitrogen, nitrites, chlorides, free and bound cyanides, sulfates and trace elements: As, B, Cr, Zn, Al, Cd, Co, Mn, Cu, Mo, Ni, Pb, Hg, Se, Ti, Fe) and organic (i.e., phenolics, benzene and their alkyl derivatives, and polycyclic aromatic hydrocarbons) contaminants. The principal component analysis and hierarchical clustering analysis enabled to effectively explore the similarities and dissimilarities between the samples generated in lignite and hard coal oxygen gasification process in terms of the amounts and concentrations of particular components. The total amount of wastewater produced in lignite gasification process was higher than the amount generated in hard coal gasification experiments. The lignite gasification wastewater was also characterized by the highest contents of acenaphthene, phenanthrene, anthracene, fluoranthene, and pyrene, whereas hard coal gasification wastewater was characterized by relatively higher concentrations of nitrites, As, Cr, Cu, benzene, toluene, xylene, benzo( a)anthracene, chrysene, benzo( b)fluoranthene, benzo( k)fluoranthene, and benzo( a)pyrene.
- Subjects
BELCHATOW (Poland); POLAND; WASTEWATER treatment; CHEMOMETRICS; GROUNDWATER pollution; UNDERGROUND gasification of coal; DATA analysis; EXPERIMENTAL design
- Publication
Water, Air & Soil Pollution, 2012, Vol 223, Issue 9, p5745
- ISSN
0049-6979
- Publication type
Article
- DOI
10.1007/s11270-012-1311-5