Abstract
The increase in the number of coal-fired power plants with the increase in coal production and its consumption has caused the problem of the treatment of a large amount of coal ash in Indonesia. In the past studies, coal ash was applied to postmine land with the aim of improving soil conditions for plant growth; however, heavy rain in the tropical climate may cause soil erosion with the change in soil conditions. This study presents the effects of application of coal ash to postmine land on soil erosion by performing the artificial rainfall test as well as physical testing. The results indicate that the risk of soil erosion can be reduced significantly by applying the coal ash which consists of more than 85% of sand to topsoil in the postmine land at the mixing ratio of over 30%. Additionally, they reveal that not only fine fractions but also microporous structures in coal ash enhance water retention capacity by retaining water in the structure, leading to the prevention of soil erosion. Thus, the risk of soil erosion can be reduced by applying coal ash to topsoil in consideration of soil composition and microporous structure of coal ash.
| Original language | English |
|---|---|
| Article number | 8386598 |
| Journal | Advances in Materials Science and Engineering |
| Volume | 2016 |
| DOIs | |
| Publication status | Published - Jan 1 2016 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Engineering(all)
Cite this
Application of Coal Ash to Postmine Land for Prevention of Soil Erosion in Coal Mine in Indonesia : Utilization of Fly Ash and Bottom Ash. / Matsumoto, Shinji; Ogata, Shunta; Shimada, Hideki; Sasaoka, Takashi; Kusuma, Ginting J.; Gautama, Rudy S.
In: Advances in Materials Science and Engineering, Vol. 2016, 8386598, 01.01.2016.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Application of Coal Ash to Postmine Land for Prevention of Soil Erosion in Coal Mine in Indonesia
T2 - Utilization of Fly Ash and Bottom Ash
AU - Matsumoto, Shinji
AU - Ogata, Shunta
AU - Shimada, Hideki
AU - Sasaoka, Takashi
AU - Kusuma, Ginting J.
AU - Gautama, Rudy S.
PY - 2016/1/1
Y1 - 2016/1/1
N2 - The increase in the number of coal-fired power plants with the increase in coal production and its consumption has caused the problem of the treatment of a large amount of coal ash in Indonesia. In the past studies, coal ash was applied to postmine land with the aim of improving soil conditions for plant growth; however, heavy rain in the tropical climate may cause soil erosion with the change in soil conditions. This study presents the effects of application of coal ash to postmine land on soil erosion by performing the artificial rainfall test as well as physical testing. The results indicate that the risk of soil erosion can be reduced significantly by applying the coal ash which consists of more than 85% of sand to topsoil in the postmine land at the mixing ratio of over 30%. Additionally, they reveal that not only fine fractions but also microporous structures in coal ash enhance water retention capacity by retaining water in the structure, leading to the prevention of soil erosion. Thus, the risk of soil erosion can be reduced by applying coal ash to topsoil in consideration of soil composition and microporous structure of coal ash.
AB - The increase in the number of coal-fired power plants with the increase in coal production and its consumption has caused the problem of the treatment of a large amount of coal ash in Indonesia. In the past studies, coal ash was applied to postmine land with the aim of improving soil conditions for plant growth; however, heavy rain in the tropical climate may cause soil erosion with the change in soil conditions. This study presents the effects of application of coal ash to postmine land on soil erosion by performing the artificial rainfall test as well as physical testing. The results indicate that the risk of soil erosion can be reduced significantly by applying the coal ash which consists of more than 85% of sand to topsoil in the postmine land at the mixing ratio of over 30%. Additionally, they reveal that not only fine fractions but also microporous structures in coal ash enhance water retention capacity by retaining water in the structure, leading to the prevention of soil erosion. Thus, the risk of soil erosion can be reduced by applying coal ash to topsoil in consideration of soil composition and microporous structure of coal ash.
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UR - http://www.scopus.com/inward/citedby.url?scp=84984698680&partnerID=8YFLogxK
U2 - 10.1155/2016/8386598
DO - 10.1155/2016/8386598
M3 - Article
AN - SCOPUS:84984698680
VL - 2016
JO - Advances in Materials Science and Engineering
JF - Advances in Materials Science and Engineering
SN - 1687-8434
M1 - 8386598
ER -