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Title: Erodiblity of fly ash used as a topsoil substitute in mineland reclamation

Abstract

Fly ash, a by-product of coal-fired power plants, has been used successfully in reclaiming abandoned mine lands by improving minesoil chemical and physical properties. However, the fine sand-silt particle size of fly ash may make it more susceptible than natural soils to detachment and transport by erosive processes. Furthermore, the high content of silt-size particles in fly ash may make it more susceptible to surface crust formation, resulting in reduced infiltration and increased surface runoff and erosion. In the summer of 1989, fly ash-wood waste mixtures, used as a topsoil substitute, were surface applied on two separate mine sites in Preston County, WV, one with 10% slope and the other 20% slope. Erosion rates were measured directly using the Linear Erosion/Elevation Measuring Instrument (LEMI). Erosion measurements were taken during the first two growing seasons on both sites. Erosion values were up to five times greater on the fly ash-treated minesoil than on the untreated minesoil. Mulching with wood chips reduced fly ash erosion to about one-half the loss of the unmulched plots. Erosion was related to both the amount and type of ground cover. Increased vegetative ground cover resulted in reduced erosion. Mosses and fungi appeared to provide better erosionmore » protection than grass-legume cover.« less

Authors:
; ; ; ;
Publication Date:
Research Org.:
West Virginia Univ., Morgantown, WV (US)
OSTI Identifier:
20080425
Resource Type:
Journal Article
Journal Name:
Journal of Environmental Quality
Additional Journal Information:
Journal Volume: 29; Journal Issue: 3; Other Information: PBD: May-Jun 2000; Journal ID: ISSN 0047-2425
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; 01 COAL, LIGNITE, AND PEAT; FOSSIL-FUEL POWER PLANTS; WASTE MANAGEMENT; FLY ASH; WASTE PRODUCT UTILIZATION; LAND RECLAMATION; EROSION; SOILS

Citation Formats

Gorman, J.M., Sencindiver, J.C., Horvath, D.J., Singh, R.N., and Keefer, R.F. Erodiblity of fly ash used as a topsoil substitute in mineland reclamation. United States: N. p., 2000. Web. doi:10.2134/jeq2000.00472425002900030016x.
Gorman, J.M., Sencindiver, J.C., Horvath, D.J., Singh, R.N., & Keefer, R.F. Erodiblity of fly ash used as a topsoil substitute in mineland reclamation. United States. doi:10.2134/jeq2000.00472425002900030016x.
Gorman, J.M., Sencindiver, J.C., Horvath, D.J., Singh, R.N., and Keefer, R.F. Thu . "Erodiblity of fly ash used as a topsoil substitute in mineland reclamation". United States. doi:10.2134/jeq2000.00472425002900030016x.
@article{osti_20080425,
title = {Erodiblity of fly ash used as a topsoil substitute in mineland reclamation},
author = {Gorman, J.M. and Sencindiver, J.C. and Horvath, D.J. and Singh, R.N. and Keefer, R.F.},
abstractNote = {Fly ash, a by-product of coal-fired power plants, has been used successfully in reclaiming abandoned mine lands by improving minesoil chemical and physical properties. However, the fine sand-silt particle size of fly ash may make it more susceptible than natural soils to detachment and transport by erosive processes. Furthermore, the high content of silt-size particles in fly ash may make it more susceptible to surface crust formation, resulting in reduced infiltration and increased surface runoff and erosion. In the summer of 1989, fly ash-wood waste mixtures, used as a topsoil substitute, were surface applied on two separate mine sites in Preston County, WV, one with 10% slope and the other 20% slope. Erosion rates were measured directly using the Linear Erosion/Elevation Measuring Instrument (LEMI). Erosion measurements were taken during the first two growing seasons on both sites. Erosion values were up to five times greater on the fly ash-treated minesoil than on the untreated minesoil. Mulching with wood chips reduced fly ash erosion to about one-half the loss of the unmulched plots. Erosion was related to both the amount and type of ground cover. Increased vegetative ground cover resulted in reduced erosion. Mosses and fungi appeared to provide better erosion protection than grass-legume cover.},
doi = {10.2134/jeq2000.00472425002900030016x},
journal = {Journal of Environmental Quality},
issn = {0047-2425},
number = 3,
volume = 29,
place = {United States},
year = {2000},
month = {6}
}