Evaluation of Leachates from Coal Refuse Blended with Fly Ash at Different Rates
B.R. Stewarta,
W.L. Daniels*,b,
L.W. Zelaznyb and
M.L. Jacksonc
a Dep. of Plant and Soil Science, Mississippi State Univ., Mississippi State, MS 39762
b Dep. of Crop and Soil Environ. Sciences, Virginia Polytechnic Inst. and State Univ., Blacksburg, VA 24061-0404
c Dep. of Forestry, Virginia Polytechnic Inst. and State Univ., Blacksburg, VA 24061-0138

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Fig. 1. Chronologic mean (n = 3) column leachate pH values for each treatment. Each week 2.5 cm of simulated acid rain was applied to each column. Error bars reflect 1 sample SD above and below the mean.
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Fig. 2. Chronologic mean (n = 3) column leachate EC values for each treatment. Each week 2.5 cm of simulated acid rain was applied to each column. Error bars reflect 1 sample SD above and below the mean.
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Fig. 3. Variation in treatment mean (n = 3) leachate Fe content with time. Each week 2.5 cm of simulated acid rain was applied to each column. Error bars reflect 1 sample SD above and below the mean.
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Fig. 4. Mean (n = 3) total Fe (left axis) and Mn (right axis) for the WVF treatments and Control.
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Fig. 5. Variation in treatment mean (n = 3) leachate Mn content with time. Each week 2.5 cm of simulated acid rain was applied to each column. Error bars reflect 1 sample SD above and below the mean.
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Fig. 6. Variation in treatment mean (n = 3) leachate Cu content with time. Each week 2.5 cm of simulated acid rain was applied to each column. Error bars reflect 1 sample SD above and below the mean.
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Fig. 7. Variation in treatment mean (n = 3) leachate B content with time. Each week 2.5 cm of simulated acid rain was applied to each column. Error bars reflect 1 sample SD above and below the mean.
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Copyright © 2001 by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America.