Solid Waste and Ecological Issues of Coal to Energy
Publication: Journal of Hazardous, Toxic, and Radioactive Waste
Volume 15, Issue 2
Abstract
This paper provides an overview of environmental issues in the coal-to-energy industry. Coal to energy will be the major energy source for foreseeable future. The waste generated from the coal-to-energy process and the ecological degradation during the mining and processing of coal are two main issues affecting coal as a future main energy source. Hence, this paper provides an overview of the solid waste and ecological issues during the coal-to-energy process and proposes ways to fully utilize coal fly ash and to mitigate the ecological issues. Fly ash, a major component of combustion waste of coal to energy, is an industrial by-product that is recognized as an environmental pollutant. Although it is treated as a waste, the mineral chemistry of fly ash is of economic value. The main reasons for the low utilization rate of coal fly ash and the ways of achieving full utilization are discussed first. The issues involved in the storage of vast quantities of coal fly ash are also summarized. Based on the analysis, full utilization of coal fly ash is feasible in the United States by the processes of grinding fly ash and 40% cement replacement. However, such actions would require the development of a fly ash classification system accounting for pozzolanic activity and cementitious properties, alkali-aggregate reactivity, and sulfate resistance. Also discussed are the ecological issues and existing problems during coal mining including water pollution, coal mining waste, and land subsidence. Several proposed effective solutions were reviewed, and it was determined that the ecological degradation during mining could be minimized.
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References
Ahmaruzzaman, M. (2010). “A review on the utilization of fly ash.” Prog. Energy Combust. Sci., 36, 327–363.
American Coal Ash Association (ACAA). (2001). Proc., 14th Int. Symp. on Management and Use of Coal Combustion Products (CCPs). American Coal Ash Association, San Antonio.
Bouzoubaa, N, Zhang, M. H., and Malhotra, V. M. (2000). “Laboratory-produced high-volume fly ash blended cements: Compressive strength and resistance to the chloride-ion penetration of concrete.” Cem. Concr. Res., 30(7), 1037–1046.
Bruere, G. M. (1971). “Air-entraining actions of anionic surfactants in portland cement pastes.” J. Appl. Chem. Biotechnol., 21, 61–64.
Bumrongjaroen, W. (1999). “Utilization of processed fly ash in mortar.” Doctoral Dissertation, Civil and Environmental Engineering, New Jersey Institute of Technology, Newark, NJ.
Cao, D., Selic, E., and Herbell, J. (2008). “Utilization of fly ash from coal-fired power plants in China.” J. Zheijang Univ. Sci. A, 9(5), 681–687.
Carlton, C. Wiles (1996). “Municipal solid waste combustion ash: State of the knowledge.” J. Hazard. Mater., 47, 325–344.
China Environment Yearbook. (2005). State Administration of Environment Protection, Beijing.
China Environment Yearbook. (2008). State Administration of Environment Protection, Beijing.
Chugh, Y. P., and Patwardhan, A. (2004). “Mine-mouth power and process steam generation using fine coal waste fuel.” Resour. Conserv. Recycl., 40(3), 225–243.
Cokca, E. (1997). “Frost susceptibility properties of Soma-B fly ash.” J. Energy Eng., 123(1), 1–10.
Dhadse, S., Kumari, P., and Bhagia, L. J. (2008). “Fly ash characterization, utilization and government initiatives in India: A review.” J. Sci. Ind. Res., 67, 11–18.
Dharmappa, H. B., Wingrove, K., Sivakumar, M., and Singh, R. (2000). “Wastewater and stormwater minimization in a coal mine.” J. Cleaner Prod., 8, 23–34.
Dhir, R. K., McCarthy, M. J., Limbachiya, M. C., El Sayad, H. I., and Zhang, D. S. (1999). “Pulverized fuel ash concrete: air entrainment and freeze/thaw durability.” Mag. Concr. Res., 51(1), 53–64.
DiGioia, A. M., and Nuzzo, W. L. (1972). “Fly ash as structural fill.” Proc., American Society of Civil Engineers, Journal of the Power Division, New York.
Dodson, V. H. (1990). Concrete admixtures, 1st Ed., Van Nostrand Reinhold, New York, 129–164.
Downing, B. (2010). “FirstEnergy ending ash storage in PA lake.” Beacon Journal, 〈http://www.ohio.com/business/83009627.html〉.
Fisher, G. L., et al. (1978). “Physical and morphological studies of size-classified coal fly ash.” Environ. Sci. Technol., 12(4), 447–451.
Giergiczny, Z., and Werynska, A. (1989). Influence of fineness of fly ashes on their hydraulic activity, SP114-04, American Concrete Institute, Detroit, 97–116.
Guo, W., Zou, Y., and Liu, Y. (2009). “Current status and future prospects of mining subsidence and ground control technology in China.” Coal 2009: Coal Operators’ Conf., Univ. Wollongong and the Australasian Inst. Mining and Metallurgy, New South Wales, Australia, 140–145.
Hachmann, L., Burnett, A., Gao, Y. M., Hurt, R. H., and Suuberg, E. M. (1998). “Surfactant adsorptivity of solid products from pulverized-coal combustion under controlled conditions.” Proc., Combustion Inst., 27, Pittsburgh, 2965–2971.
Hasholt, M. T. (2002). “Afklaring problemer med NJV-flyveaske. Trin 1: Gennemgang of receptor.” No. 1, Taastrup, Danish Technological Institute, Denmark.
Helmuth, R. A. (1987). Fly ash in cement and concrete, Portland Cement Association, Skokie, IL, 203.
Hemming, R. T., and Berry, E. E. (1998). “On the glass in coal fly ashes: recent advances.” Proc., Mater. Res. Soc. Symp., 113, Pittsburgh, 3–38.
Hemza, P., Siverk, M., and Jirasek, J. (2009). “Factors influencing the methane content of coal beds of the Czech part of the Upper Silesian coal basin, Czech Republic.” J. Coal Geol., 79(1–2), 29–39.
Hill, R. L., Sarkar, S. L., Rathbone, R. F., and Hower, J. C. (1997). “An examination of fly ash carbon and its interactions with air entraining agent.” Cem. Concr. Res., 27(2), 193–204.
Kulaots, I., Hsu, A., Hurt, R. H., and Suuberg, E. M. (2003). “Adsorption of surfactants on unburned carbon in fly ash and development of a standardized foam index test.” Cem. Concr. Res., 33(12), 2091-2099.
Kumar, S., Kumar, R., and Bandopadhyay, A. (2006). “Innovative methodologies for the utilization of wastes from metallurgical and allied industries.” Resour. Conserv. Recycl., 48, 301–314.
Lane, D. S. (1991). “Testing fly ash in mortars for air-entrainment characteristics.” Cem., Concr., Aggregates, 13(1), 25–31.
Lee, S. H., Sakai, E., Daimon, M., and Bang, W. K. (1999). “Characterization of fly ash directly collected from electrostatic precipitator.” Cem. Concr. Res., 29(11), 1791–1797.
Liu, H., and Liu, Z. (2010). “Recycling utilization patterns of coal mining waste in China.” Resour. Conserv. Recycl., 54, 1331–1340.
Lottermorse, B. (2003). Mine wastes: Characterization, treatment, and environmental impacts, Springer, New York.
Ma, C., and Li, X. (2008). “Settlement behavior of coal mine waste in different surrounding rock conditions.” J. Central South Univ. Technol., 15(3), 350–355.
Manz, O. E. (1997). “Worldwide production of coal ash and utilization in concrete and other products.” Fuel.” 76(8), 691–691.
Mattigod, S. V., Dhanpat, R., Eary, L. E., and Ainsworth, C. C. (1990). “Geochemical factors controlling the mobilization of inorganic constituents from fossil fuel combustion residues: I. Review of the major elements.” J. Environ. Quality, 19, 188–201.
McKerall, W. C., Ledbetter, W. B., and Teague, D. J. (1982). “Analysis of fly ashes produced in Texas.” Texas Transportation Institute, Research Rep. 240-1, Texas A&M University, College Station, TX.
Mehta, P. K. (1983). “Mechanism of sulfate attack on portland cement concrete—Another look.” Cem. Concr. Res., 13, 401–406.
Mehta, P. K. (1985). “Influence of fly ash characteristics on the strength of portland fly ash mixture.” Cem. Concr. Res., 15(4), 669–674.
Mehta, P. K. (1986). “Effect of fly ash composition on sulfate resistance of cement.” J. ACI Proc., 83(6), 994–1000.
Mehta, P. K. (1988). “Durability of concrete exposed to marine environment—A fresh look.” Concrete in Marine Environment, ACI SP 109, American Concrete Institute, Detroit, 1–29.
Meyers, J. F., Pichumani, R., and Kapples, B. S. (1976). “Fly ash as a highway construction material.” Rep. FHWA-IP-76-16, Federal Highway Administration, Washington, DC.
Ministry of Environmental Protection of the People’s Republic of China (MEPC). (2006). “Directive of resources utilization in 11th five-year plan.” (in Chinese).
Misra, A. (2000). “Utilization of western coal fly ash in construction of highways in the midwest.” Project No. MATC UMC 96-2, MATC, Lincoln, NE.
Myers, T. (2009). “Groundwater management and coal bed methane development in the Powder River Basin of Montana.”J. Hydrol. (Amsterdam), 368(1-4), 178–193.
Niu, D., Sun, X., and Zhao, Y. (2007). Treatment and valorisation of industrial solid waste, Metallurgical Industry Press, Beijing (in Chinese).
Obla, K. H., Hill, R. L., Thomas, M. D. A., Shashiprakash, S. G., and Perebatova, O. (2003). “Properties of concrete containing ultra-fine fly ash.” ACI Mater. J., 100-M49, 1–8.
Openshaw, S. C., et al. (1992). “Utilization of coal fly ash.” Rep. 92-3, Florida center for solid and hazardous waste management.” Gainesville, FL.
Paillere, A. M. (1995). Application of admixtures in concrete, 1st Ed., E & FN Spon, London, 17–22.
Paya, J., Monzo, J., Borrachero, M. V., Peris-Mora, E., and Amahjour, F. (2000). “Mechanical treatment of fly ashes. Part IV: Strength development of ground fly ash-cement mortars cured at different temperature.” Cem. Concr. Res., 30, 543–551.
Paya, J., Monzo, J., Borrachero, M V., Peris-Mora, E., and Gonzalez-Lopez, E. (1997). “Mechanical treatments of fly ashes. Part III: Studies on strength development of ground fly ash (GFA).” Cem. Concr. Res., 27(9), 1365–1377.
Rixom, M. R. (1998). “The economic aspects of admixture use.” Cem. Concr. Compos., 20, 141–147.
Rixom, M. R., and Mailvaganam, N. P. (1986). Chemical admixtures for concrete, 2nd Ed., E & FN Spon, London, 95–100.
Roy, W. R., Thiery, R. G., Schuller, R. M., and Suloway, J. J. (1981). “Coal fly ash: A review of the literature and proposed classification system with emphasis on environmental impacts.” Environmental Geology Notes, No. 96, Illinois State Geological Survey, Champaign, IL.
Rukzon, S., and Chindaprasirt, P. (2008). “Development of classified fly ash as a pozzolanic material.” J. Appl. Sci., 8(6), 1097–1102.
Scheetz, B. E., and Earle, R. (1998). “Utilization of fly ash.” Curr. Opin. Solid State Mater. Sci., 3, 510–520.
Singh, D. N., and Kolay, P. K. (2002). “Simulation of ash-water interaction and its influence on ash characteristics.” Prog. Energy Combust. Sci., 28, 267–299.
Sterritt, R. M., and Lester, J. N. (1979). “The microbiological control of mine waste pollution.” Environ. Geochem. Health, 1(2), 45–47.
Tang, S., and Wang, Y. (2007). “A comprehensive appraisal on the characteristics of coal-bed methane reservoir in Turpan-Hami Basin.” J. Chin. Univ. Mining Technol., 17(4), 521–525.
Tian, B., and Cohen, M. D. (2000). “Does gypsum formation during sulfate attack on concrete lead to expansion?” Cem. Concr. Res., 30, 117–123.
Tiwary, R. K. (2001). “Environmental impaction of coal mining on water regime and its management.” Water, Air, Soil Pollut., 132, 185–199.
Tiwary, R. K., and Dhar, B. B. (1994). “Environmental pollution from coal mining activities in Damodar river basin, India.” Mine Water Environ., 13(1), 1–10.
Tolle, D. A., Arthur, M. F., and Pomeroy, S. E. (1982). “Fly ash use for agriculture and land reclamation: A critical literature review and identification of additional research needs.” RP-1224-5, Battelle Columbus Laboratories, Columbus, OH.
Ukita, K., Shigematsu, S., and Ishii, M. (1989). Improvement in the properties of concrete utilizing classified fly ash, SP114-10, American Concrete Institute, Detroit, 219–240.
Williams, D., and Jeffery, J. (2003). “A review of the acid rock drainage potential and hydrological implications of selectively-placed waste rock at gold mine in NSW.” 6th Int. Conf. on Acid Rock Drainage (ICARD), Australia.
World Coal Institute. (2005). “What is coal?” 〈http://www.worldcoal.org/bin/pdf/original_pdf_file/what_is_coal(01_06_2009).pdf〉.
World Coal Institute. (2005). “The coal resource.” 〈http://www.worldcoal.org/bin/pdf/original_pdf_file/coal_resource_overview_of_coal_report(03_06_2009).pdf〉.
World Coal Institute. (2008). “Coal mining and the environment.” 〈http://www.worldcoal.org/coal-the-environment/coal-mining-the-environment/〉.
Xu, H. Q. (2006). Report on development of energy and environment in China, Chinese Environmental Science Press (in Chinese).
Zheng, R. M., Zhan, B. G., and Zhan, O. F. (2009). “Influence of particle distribution on properties of fly ash cement with particles A dusted.” J. Hefei Univ. Technol., 32(5), 745–748 (in Chinese).
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Journal of Hazardous, Toxic, and Radioactive Waste
Volume 15 • Issue 2 • April 2011
Pages: 99 - 107
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© 2011 American Society of Civil Engineers.
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Received: Apr 5, 2010
Accepted: Aug 31, 2010
Published online: Sep 24, 2010
Published in print: Apr 1, 2011
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