Chemical properties of acid soil treated with coal combustion by-products and leached

Application of coal combustion by-products (CCBs) to acid soils can have beneficial or detrimental effects. A column study was conducted to determine the effects of CCBs on mitigating acid soil properties after leaching with 138 cm deionized water. Columns containing 105 cm acidic Lily soil (Typic H...

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Bibliographic Details
Published inCommunications in soil science and plant analysis Vol. 27; no. 15/17
Main Authors Zaifnejad, M. (Appalachian Soil and Water Conservation Research Laboratory, USDA, ARS, Beckley, WV.), Ritchey, K.D, Clark, R.B, Baligar, V.C, Martens, D.C
Format Journal Article
LanguageEnglish
Published 01.01.1996
Subjects
ACIDEZ
ACIDITE
ALUMINIO
ALUMINIUM
AMENDEMENT DU SOL
CALCAIRE
CALCIO
CALCIUM
CALIZA
CARACTERISTICAS MORFOLOGICAS SUELO
CARBON
CHARBON
DISPONIBILIDAD DE NUTRIENTES
DISPONIBILITE D'ELEMENT NUTRITIF
ENMIENDAS DEL SUELO
HIDROXIDOS
HYDROXYDE
LESSIVAGE DU SOL
LIXIVIACION
MAGNESIO
MAGNESIUM
PH DEL SUELO
PH DU SOL
SOL ACIDE
SOUS PRODUIT
SOUS SOL
SUBPRODUCTOS
SUBSUELO
SUELO ACIDO
SULFATE
SULFATOS
TOXICIDAD DEL SUELO
TOXICITE DU SOL
TRAIT MORPHOLOGIQUE DU SOL
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Summary:Application of coal combustion by-products (CCBs) to acid soils can have beneficial or detrimental effects. A column study was conducted to determine the effects of CCBs on mitigating acid soil properties after leaching with 138 cm deionized water. Columns containing 105 cm acidic Lily soil (Typic Hapludult) had mixed in the top 15 cm the following treatments (g/kg soil): no CCB or limestone (check); dolomitic limestone (lime) at 3.98; high-calcium sulfate (CaSO4) flue gas desulfurization (FGD) by-product (BP) at 15.88; combination of lime+FGD at rates given; high-CaSO4 FGD BP enriched with Mg (FGD+Mg) at 15.88; and fluidized bed combustion (FBC) BP at 6.45. After being leached for 39 days, the columns of acid soil treated with high-CaSO4 by-products showed higher subsurface pH, calcium (Ca), and sulfur (S) and lower aluminum (Al) and manganese (Mn). In contrast, the lime alone treatment had little effect on subsurface soil properties. Use of dolomitic limestone to supply magnesium (Mg) in conjunction with the CaSO4 treatments was more effective than supplementation with Mg(OH)2, where 97% of the added Mg leached from the top layer. Substances leached from the CCBs studied were effective in reducing problems associated with subsurface soil acidity
Bibliography:9701220
P33
F04
ISSN:0010-3624
1532-2416
DOI:10.1080/00103629609369741