Application of Coal Ash to Postmine Land for Prevention of Soil Erosion in Coal Mine in Indonesia: Utilization of Fly Ash and Bottom Ash
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...
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| Format: | Article |
| Language: | English |
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Wiley
2016-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2016/8386598 |
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| author | Shinji Matsumoto Shunta Ogata Hideki Shimada Takashi Sasaoka Ginting J. Kusuma Rudy S. Gautama |
| author_facet | Shinji Matsumoto Shunta Ogata Hideki Shimada Takashi Sasaoka Ginting J. Kusuma Rudy S. Gautama |
| author_sort | Shinji Matsumoto |
| collection | DOAJ |
| description | 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. |
| format | Article |
| id | doaj-art-f1979939e79a433bbc29dfd4bfe1ca3c |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-f1979939e79a433bbc29dfd4bfe1ca3c2025-02-03T05:48:08ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422016-01-01201610.1155/2016/83865988386598Application of Coal Ash to Postmine Land for Prevention of Soil Erosion in Coal Mine in Indonesia: Utilization of Fly Ash and Bottom AshShinji Matsumoto0Shunta Ogata1Hideki Shimada2Takashi Sasaoka3Ginting J. Kusuma4Rudy S. Gautama5Department of Earth Resources Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 8190395, JapanDepartment of Earth Resources Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 8190395, JapanDepartment of Earth Resources Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 8190395, JapanDepartment of Earth Resources Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 8190395, JapanDepartment of Mining Engineering, Institute of Technology Bandung, Jalan Ganesha No. 10, Bandung, Jawa Barat 40132, IndonesiaDepartment of Mining Engineering, Institute of Technology Bandung, Jalan Ganesha No. 10, Bandung, Jawa Barat 40132, IndonesiaThe 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.http://dx.doi.org/10.1155/2016/8386598 |
| spellingShingle | Shinji Matsumoto Shunta Ogata Hideki Shimada Takashi Sasaoka Ginting J. Kusuma Rudy S. Gautama Application of Coal Ash to Postmine Land for Prevention of Soil Erosion in Coal Mine in Indonesia: Utilization of Fly Ash and Bottom Ash Advances in Materials Science and Engineering |
| title | Application of Coal Ash to Postmine Land for Prevention of Soil Erosion in Coal Mine in Indonesia: Utilization of Fly Ash and Bottom Ash |
| title_full | Application of Coal Ash to Postmine Land for Prevention of Soil Erosion in Coal Mine in Indonesia: Utilization of Fly Ash and Bottom Ash |
| title_fullStr | Application of Coal Ash to Postmine Land for Prevention of Soil Erosion in Coal Mine in Indonesia: Utilization of Fly Ash and Bottom Ash |
| title_full_unstemmed | Application of Coal Ash to Postmine Land for Prevention of Soil Erosion in Coal Mine in Indonesia: Utilization of Fly Ash and Bottom Ash |
| title_short | Application of Coal Ash to Postmine Land for Prevention of Soil Erosion in Coal Mine in Indonesia: Utilization of Fly Ash and Bottom Ash |
| title_sort | application of coal ash to postmine land for prevention of soil erosion in coal mine in indonesia utilization of fly ash and bottom ash |
| url | http://dx.doi.org/10.1155/2016/8386598 |
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