Enhancing attapulgite and cement-modified loess for effective landfill lining: A study on seepage prevention and Cu/Pb ion adsorption
This study aims to use attapulgite (ATT) and cement to modify loess as the lining material of landfills in loess areas and to exert the adsorption property of modified loess to ensure seepage prevention. It provides a safe, efficient, low-cost anti-seepage material for constructing a landfill in a l...
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| Format: | Article |
| Language: | English English |
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De Gruyter
2024
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| Online Access: | https://eprints.ums.edu.my/id/eprint/41019/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/41019/2/FULL%20TEXT.pdf |
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| author | Zhengrui Zhang Siti Jahara Matlan Lili Zhang Ahad Amini Pishro Mojdeh Amini Pishro Xian Gao Nazaruddin Abdul Taha Yuxin Zhou |
| author_facet | Zhengrui Zhang Siti Jahara Matlan Lili Zhang Ahad Amini Pishro Mojdeh Amini Pishro Xian Gao Nazaruddin Abdul Taha Yuxin Zhou |
| author_sort | Zhengrui Zhang |
| collection | UMS |
| description | This study aims to use attapulgite (ATT) and cement to modify loess as the lining material of landfills in loess areas and to exert the adsorption property of modified loess to ensure seepage prevention. It provides a safe, efficient, low-cost anti-seepage material for constructing a landfill in a loess area. For ATT-modified loess, when the content of ATT is less than 10%, the decrease rate of permeability coefficient is obvious, and when the content is more than 10%, the decrease rate becomes slow. After adding 5% cement on this basis, the permeability coefficient of ATT cement-modified loess is 8 × 10−8 cm/s, which meets the standard requirements (≤10−7 cm/s). The results show that the adsorption of Cu and Pb ions on ATT cement-modified loess is higher than that on pure loess. Cu and Pb ions’ adsorption rates are 99.2 and 98.5% in a single solution. In the mixed solution, the adsorption rates of copper and lead ions were 97.5 and 98.2%, respectively. Therefore, the study obtained the ratio of modified loess (85% loess + 10% ATT + 5% cement) that can not only meet the seepage prevention requirements of the landfill but also can adsorb heavy |
| first_indexed | 2024-09-24T00:52:49Z |
| format | Article |
| id | ums.eprints-41019 |
| institution | Universiti Malaysia Sabah |
| language | English English |
| last_indexed | 2024-09-24T00:52:49Z |
| publishDate | 2024 |
| publisher | De Gruyter |
| record_format | dspace |
| spelling | ums.eprints-410192024-09-09T03:32:09Z https://eprints.ums.edu.my/id/eprint/41019/ Enhancing attapulgite and cement-modified loess for effective landfill lining: A study on seepage prevention and Cu/Pb ion adsorption Zhengrui Zhang Siti Jahara Matlan Lili Zhang Ahad Amini Pishro Mojdeh Amini Pishro Xian Gao Nazaruddin Abdul Taha Yuxin Zhou QC120-168.85 Descriptive and experimental mechanics TD783-812.5 Municipal refuse. Solid wastes This study aims to use attapulgite (ATT) and cement to modify loess as the lining material of landfills in loess areas and to exert the adsorption property of modified loess to ensure seepage prevention. It provides a safe, efficient, low-cost anti-seepage material for constructing a landfill in a loess area. For ATT-modified loess, when the content of ATT is less than 10%, the decrease rate of permeability coefficient is obvious, and when the content is more than 10%, the decrease rate becomes slow. After adding 5% cement on this basis, the permeability coefficient of ATT cement-modified loess is 8 × 10−8 cm/s, which meets the standard requirements (≤10−7 cm/s). The results show that the adsorption of Cu and Pb ions on ATT cement-modified loess is higher than that on pure loess. Cu and Pb ions’ adsorption rates are 99.2 and 98.5% in a single solution. In the mixed solution, the adsorption rates of copper and lead ions were 97.5 and 98.2%, respectively. Therefore, the study obtained the ratio of modified loess (85% loess + 10% ATT + 5% cement) that can not only meet the seepage prevention requirements of the landfill but also can adsorb heavy De Gruyter 2024 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/41019/1/ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/41019/2/FULL%20TEXT.pdf Zhengrui Zhang and Siti Jahara Matlan and Lili Zhang and Ahad Amini Pishro and Mojdeh Amini Pishro and Xian Gao and Nazaruddin Abdul Taha and Yuxin Zhou (2024) Enhancing attapulgite and cement-modified loess for effective landfill lining: A study on seepage prevention and Cu/Pb ion adsorption. Open Geosciences. pp. 1-15. https://doi.org/10.1515/geo-2022-0617 |
| spellingShingle | QC120-168.85 Descriptive and experimental mechanics TD783-812.5 Municipal refuse. Solid wastes Zhengrui Zhang Siti Jahara Matlan Lili Zhang Ahad Amini Pishro Mojdeh Amini Pishro Xian Gao Nazaruddin Abdul Taha Yuxin Zhou Enhancing attapulgite and cement-modified loess for effective landfill lining: A study on seepage prevention and Cu/Pb ion adsorption |
| title | Enhancing attapulgite and cement-modified loess for effective landfill lining: A study on seepage prevention and Cu/Pb ion adsorption |
| title_full | Enhancing attapulgite and cement-modified loess for effective landfill lining: A study on seepage prevention and Cu/Pb ion adsorption |
| title_fullStr | Enhancing attapulgite and cement-modified loess for effective landfill lining: A study on seepage prevention and Cu/Pb ion adsorption |
| title_full_unstemmed | Enhancing attapulgite and cement-modified loess for effective landfill lining: A study on seepage prevention and Cu/Pb ion adsorption |
| title_short | Enhancing attapulgite and cement-modified loess for effective landfill lining: A study on seepage prevention and Cu/Pb ion adsorption |
| title_sort | enhancing attapulgite and cement modified loess for effective landfill lining a study on seepage prevention and cu pb ion adsorption |
| topic | QC120-168.85 Descriptive and experimental mechanics TD783-812.5 Municipal refuse. Solid wastes |
| url | https://eprints.ums.edu.my/id/eprint/41019/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/41019/2/FULL%20TEXT.pdf |
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