Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-29T06:20:53.918Z Has data issue: false hasContentIssue false
  • English
  • Français

Environmental Assessment of Botitom Ash and Fly Ash Used in Road Stabilization

Published online by Cambridge University Press:  21 February 2011

Asmare Atalay  and
Joakim G. Laguros
Asmare Atalay
Affiliation:
The University of Oklahoma, School of Civil Engineering and Environmental Science, 202 West Boyd, Norman, Oklahoma 73019
Joakim G. Laguros
Affiliation:
The University of Oklahoma, School of Civil Engineering and Environmental Science, 202 West Boyd, Norman, Oklahoma 73019
Get access

Abstract

Fly ash and bottom ash are being used extensively for stabilization of roads. Unpaved county roads in rural areas are often being resurfaced with bottom ash to improve their stability. A preliminary, uncontrolled examination was conducted to assess the environmental problems that may result from the use of fly ash and bottom ash on highways. To do this, soil, plant and run–off water samples were collected from county roads and highways in Oklahoma that were constructed using either of the two ash forms. These samples were analyzed for fourteen elements of which eight are under the USEPA regulation list of priority pollutants for solid waste and drinking water. The results indicated that the allowable limits for six out of the eight elements were exceeded in the run-off water samples. Compared with the control, fly ash, bottom ash, coal and soil-core samples all contained significantly higher levels of all elements; however, except for barium all were below the regulatory levels. The concentrations of As, Sb, Pb, Ni, Se, and TI in the run-off water samples are high enough to be of concern, although they are below the allowable limits for drinking water. These six elements are found at much higher levels in the fly ash and bottom ash than in the input coal. More Ba is released into the run–off water when the roads were under heavy traffic. Although there was no visual damage observed on the collected plant samples, much higher than normal levels of most metals, were obtained in the tissues.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 178: Symposium W – Fly Ash and Coal Conversion By-Products VI , 1989 , 261
Copyright
Copyright © Materials Research Society 1990

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Prasada, Rao, C. and Gluskoter, Harold J., Occurrence and Distribution of Minerals in Illinois Coals, Illinois Geological Survey Circular 476, 1973, 56 p.Google Scholar
2. O'Gorman, J.V. and Walker, P.L. Jr, Mineral Matter and Trace Elements in U.S. Coals,” Office of U.S. Dept. of Interior, Research and Development Report No. 51, Interim Report No. 2, 1972, 184 p.Google Scholar
3. Groenewold, Gerald H., Hassett, David J., Koob, Robert D. and Manz, Oscar E., “Disposal of Western Fly Ash in the Northern Great Planes” in Fly Ash and Coal Conversion Byproducts: Characterization. Utilization. and Disposal. I Mat. Res. Soc. Symp. Proc. Vol.43, edited by McCarthy, G.J. and Lauf, R.J. (Materials Research Society, Pittsburgh, PA, 1985) pp 214–226.Google Scholar
4. Murarka, Ishwar P., “Scientific Basis for Effective Fly Ash Disposal,” in Fly Ash.and Coal Conversion Byproducts: Characterization. Utilization and Disposal I. Mat. Res. Soc. Proc. Symposia, Pittsburgh, PA., Vol.65, edited by McCarthy, G.J. and Lauf, R. J (Materials Research Society, Pittsburgh, PA, 1985, pp 265–267.Google Scholar
5. Malek, R.I.A, Licastro, P.H. and Roy, D. M., Materials Research Society Proceedings Symposia, Pittsburgh, PA, Vol.65, 1985, p. 269–284.Google Scholar
6. Roy, D.M., Luke, K., , S. and Diamond, , “Characterization of Fly Ash and its Reactions in Concrete” in: Fly Ash and Coal Conversion Byproducts: Characterization. Utilization and Disposal I Mat. Res. Soc. Symp. Proc. Vol.43, edited by McCarthy, G.J. and Lauf, R.J. (Materials Research Society, Pittsburgh, PA, 1985) pp 3–20.Google Scholar
7. Hulett, L.D., and Weinberger, A.J., Ferguson, N.M., Northcutt, K.J. and Lyon, W.S., Trac Elements and Phase Relations in Fly Ash. EA-1822, Res. Proj. 1062, Final Report for Electric Power Research Institute, Palo Alto, CA May 1981.Google Scholar
8. Hassett, D.J., Henke, K.R. and McCarthy, G. J., “Leaching Behavior of Fixed-Bed Gasification Ash Derived From North Dakota Lignite”,in Fly Ash and Coal Conversion Byproducts: Characerization. Utilization and Disposal I. Mat. Res. Soc. Symp. Proc. Vol.65, edited by McCarthy, G.J. and Lauf, R.J. (Materials Research Society, Pittsburgh, PA, 1985) pp 285–300.Google Scholar
9. Plumb, Russell Jr., Procedures for Handling and Chemical Analysis of Sediment and Water Samnple, USEPA/Corps of Engineers Technical Committee on Criteria for Dredged and Fill Material, Vicksburg, Mississippi, May 1981.Google Scholar
10. Phung, H.T., Lund, L.I., Page, A.L., and Bradford, G.R., Environ, J.. Qual. 8 (2), 171–175 (1979).Google Scholar