Analysis on leaching characteristics of iron in coal fly ash under ammonia-based wet flue gas desulfurization (WFGD) conditions

Energy and Fuels

Volumn 23, Issue 12, 2009, Pages 5916-5919

  Gao, Xiang ^a   Ding, Hong Lei ^a   Wu, Zu Liang ^b   Du, Zhen ^a   Luo, Zhong Yang ^a   Cen, Ke Fa ^a  

^a ZHEJIANG UNIVERSITY   (China)

^b ZHEJIANG GONGSHANG UNIVERSITY   (China)

Author keywords

[No Author keywords available]

Indexed keywords

APPARENT ACTIVATION ENERGY; COAL FLY ASH; EXPERIMENTAL CONDITIONS; FERRIC IONS; INITIAL PH VALUE; LEACHING CHARACTERISTICS; PH VALUE; REACTION PATHS; REACTION TEMPERATURE; SURFACE CHEMICAL REACTIONS; VIBRATION FREQUENCY; WET FLUE GAS DESULFURIZATION;

ACTIVATION ENERGY; AMMONIA; COAL ASH; DESULFURIZATION; FLUE GASES; FLY ASH; LEACHING; NEWTONIAN FLOW; REACTION KINETICS; SURFACE REACTIONS;

PH EFFECTS;

EID: 73849145819     PISSN: 08870624     EISSN: None     Source Type: Journal    
DOI: 10.1021/ef901167t     Document Type: Article

References (22)

1. Zhao, Y.; Wang, S. X.; Duan, L.; et al. Primary air pollution emission of coal-fired power plants in China: Current status and future prediction. Atmos. Environ. 2008, 42, 8442-8452.
2. Palumbo, A. V.; Tarver, J. R.; Fagan, L. A.; et al. Comparing metal leaching and toxicity from high pH, low pH, and high ammonia fly ash. Fuel 2007, 86, 1623-1630.
3. Chakraborty, M.; Mukherjee, A. Mutagenicity and genotoxicity of coal fly ash water leachate. Ecotoxicol. Environ. Saf. 2009, 72, 838-842.
4. Zhao, J. T.; Huang, J. J.; Zhang, J. M.; et al. Influence of fly ash on high temperature desulfurization using iron oxide sorbent. Energy Fuels 2002, 16, 1585-1590.
5. 2 removal. J. Hazard. Mater. 2008, 155, 199-205.
6. Cornelis, G.; Johnson, C. A.; Gerven, T. V.; et al. Leaching mechanisms of oxyanionic metalloid and metal species in alkaline soild wastes: A review. APPL. Geochem. 2008, 23, 955-976.
7. Kim, A. G.; Hesbach, P. Comparison of fly ash leaching methods. Fuel 2009, 88, 926-937.
8. Paul, M.; Seferinoǧlu, M.; Ayçík, G.; et al. Acid leaching of ash and coal: Time dependence and trace element occurrences. Int. J. Miner. Process. 2006, 79, 27-41.
9. Singh, D. N.; Kolay, P. K. Simulation of ash - water interaction and its influence on ash characteristics. Prog. Energy Combust. Sci. 2002, 28, 267-299.
10. 2 by zeolites synthesized from fly ash. Environ. Sci. Technol. 1999, 33, 1464-1469.
11. 2 removal by leaching coal pyrite. Energy Fuels 2001, 15, 470-476.
12. Fytianos, K.; Tsaniklidi, B. Leachability of heavy metals in Greek fly ash from coal combustion. Environ. Int. 1998, 24, 477-486.
13. Dutta, B. K.; Khanra, S.; Mallick, D. Leaching of elements from coal fly ash: Assessment of its potential for use in filling abandoned coal mines. Fuel 2009, 88, 1314-1323.
14. Li, L.; Fan, M. H.; Brown, R.; et al. Production of a new waster treatment coagulant from fly ash with concomitant flue gas scrubbing. J. Hazard. Mater. 2009, 162, 1430-1437.
15. Guan, B. H.; Ni, W.; Wu, Z. B.; et al. Removal of Mn(II) and Zn(II) ions from flue gas desulfurization wastewater with water-solution chitosan. Sep. Purif. Technol. 2009, 65, 269-274.
16. Karatza D.; Prisciandaro M.; Lancia A.; et al. Calcium bisulfite oxidation in the flue gas desulfurization process catalyzed by iron and manganese ions. Ind. Eng. Chem. Res. 2004, 43, 4876-4882.
17. Xiao W. D.; Li W.; Fang Y. J.; et al. A new flue gas desulfurization process of thermal power plant-NADS ammonia-fertilizer process. Electric Power 2001, 34 54-58.
18. Ding H. L; Gao X; Shi Z. L.; et al. Research on properties of ammonia - bisulfite WFGD in stone-coal fired power plant. J. China Coal Soc. 2009, 34, 1110-1114.
19. Li M.; Hu S.; Xiang J.; et al. Characterization of fly ashes from two Chinese municipal solid waste incinerators Energy Fuels 2003, 17 1487-1491.
20. 3, α-FeOOH, β-FeOOH, and γ-FeOOH in the dark and under illumination. Environ. Pollut. 1997, 95, 283-288.
21. Aydoǧan, A.; Erdemoǧlu, M.; Ucar, G. Kinetics of galena dissolution in nitric acid solutions with hydrogen peroxide. Hydrometallurgv 2007, 88, 52-57.
22. Levenspiel, O. Chemical Reaction Engineering, 3rd ed.; Chemical Industry Press: Beijing, China, 2002, p 379.