Experimental study of the strengthening efficiency of engineering waste sludge using electro-osmosis
The intensification of urbanization has resulted in a significant increase in the generation of engineering waste sludge. Traditional treatment methods on engineering waste sludge often fail to achieve desired dewatering targets. Electroosmosis has garnered considerable attention for its substantial...
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Editorial Office of Hydrogeology & Engineering Geology
2025-01-01
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| Series: | Shuiwen dizhi gongcheng dizhi |
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| Online Access: | https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202311003 |
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| author | Yanli TAO Zeyi YU Jianfeng ZHU Xiaonan GONG Jian ZHOU Kaiqiang LI |
| author_facet | Yanli TAO Zeyi YU Jianfeng ZHU Xiaonan GONG Jian ZHOU Kaiqiang LI |
| author_sort | Yanli TAO |
| collection | DOAJ |
| description | The intensification of urbanization has resulted in a significant increase in the generation of engineering waste sludge. Traditional treatment methods on engineering waste sludge often fail to achieve desired dewatering targets. Electroosmosis has garnered considerable attention for its substantial potential in soft ground treatment and sludge consolidation. Consequently, both domestic and international experts have studied rapid dewatering and reducing initial moisture content. However, there is still an incomplete understanding regarding the efficiency of electroosmosis. A series of experiments were performed under different potentials with Hangzhou engineering waste sludge, using ferrum and graphite electrodes. Electro-osmotic efficiency was analyzed in terms of total energy consumption, effective energy consumption, and electrode loss. The relationship between the effective energy coefficient and effective potential was explored based on the experimental results and theoretical models. It was found that total and effective energy consumptions increase with the potential. The rates of increase are larger with higher potentials. Total and effective electro-osmotic efficiency decreases with the increasing potentials. Electrode materials possess little influence on the electro-osmotic efficiency, but have indirect impact through effective potential due to the anode material loss. A linear relationship was obtained between the effective energy coefficient and effective potential. Low voltage is a disadvantage to the electro-osmotic effect, while high voltage is a disadvantage to electro-osmotic efficiency. Therefore, both the electro-osmotic effect and efficiency should be considered when determining the optimal voltage value in practice. The experimental results on the significant reduction of the energy consumption of electroosmosis can provide a scientific basis for the further promotion and application of electroosmotic technology in practical engineering projects. |
| format | Article |
| id | doaj-art-fc8769b0584e450181433db2f8575a76 |
| institution | Kabale University |
| issn | 1000-3665 |
| language | zho |
| publishDate | 2025-01-01 |
| publisher | Editorial Office of Hydrogeology & Engineering Geology |
| record_format | Article |
| series | Shuiwen dizhi gongcheng dizhi |
| spelling | doaj-art-fc8769b0584e450181433db2f8575a762025-01-18T03:52:24ZzhoEditorial Office of Hydrogeology & Engineering GeologyShuiwen dizhi gongcheng dizhi1000-36652025-01-0152114114810.16030/j.cnki.issn.1000-3665.202311003202311003Experimental study of the strengthening efficiency of engineering waste sludge using electro-osmosisYanli TAO0Zeyi YU1Jianfeng ZHU2Xiaonan GONG3Jian ZHOU4Kaiqiang LI5Department of Civil Engineering, Zhejiang University of Science and Technology, Hangzhou, Zhejiang 310023, ChinaDepartment of Civil Engineering, Zhejiang University of Science and Technology, Hangzhou, Zhejiang 310023, ChinaDepartment of Civil Engineering, Zhejiang University of Science and Technology, Hangzhou, Zhejiang 310023, ChinaResearch Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, ChinaResearch Center of Coastal and Urban Geotechnical Engineering, Zhejiang University, Hangzhou, Zhejiang 310058, ChinaDepartment of Civil Engineering, Zhejiang University of Science and Technology, Hangzhou, Zhejiang 310023, ChinaThe intensification of urbanization has resulted in a significant increase in the generation of engineering waste sludge. Traditional treatment methods on engineering waste sludge often fail to achieve desired dewatering targets. Electroosmosis has garnered considerable attention for its substantial potential in soft ground treatment and sludge consolidation. Consequently, both domestic and international experts have studied rapid dewatering and reducing initial moisture content. However, there is still an incomplete understanding regarding the efficiency of electroosmosis. A series of experiments were performed under different potentials with Hangzhou engineering waste sludge, using ferrum and graphite electrodes. Electro-osmotic efficiency was analyzed in terms of total energy consumption, effective energy consumption, and electrode loss. The relationship between the effective energy coefficient and effective potential was explored based on the experimental results and theoretical models. It was found that total and effective energy consumptions increase with the potential. The rates of increase are larger with higher potentials. Total and effective electro-osmotic efficiency decreases with the increasing potentials. Electrode materials possess little influence on the electro-osmotic efficiency, but have indirect impact through effective potential due to the anode material loss. A linear relationship was obtained between the effective energy coefficient and effective potential. Low voltage is a disadvantage to the electro-osmotic effect, while high voltage is a disadvantage to electro-osmotic efficiency. Therefore, both the electro-osmotic effect and efficiency should be considered when determining the optimal voltage value in practice. The experimental results on the significant reduction of the energy consumption of electroosmosis can provide a scientific basis for the further promotion and application of electroosmotic technology in practical engineering projects.https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202311003electro-osmosispotentialferrum electrodegraphite electrodeelectro-osmotic efficiency |
| spellingShingle | Yanli TAO Zeyi YU Jianfeng ZHU Xiaonan GONG Jian ZHOU Kaiqiang LI Experimental study of the strengthening efficiency of engineering waste sludge using electro-osmosis Shuiwen dizhi gongcheng dizhi electro-osmosis potential ferrum electrode graphite electrode electro-osmotic efficiency |
| title | Experimental study of the strengthening efficiency of engineering waste sludge using electro-osmosis |
| title_full | Experimental study of the strengthening efficiency of engineering waste sludge using electro-osmosis |
| title_fullStr | Experimental study of the strengthening efficiency of engineering waste sludge using electro-osmosis |
| title_full_unstemmed | Experimental study of the strengthening efficiency of engineering waste sludge using electro-osmosis |
| title_short | Experimental study of the strengthening efficiency of engineering waste sludge using electro-osmosis |
| title_sort | experimental study of the strengthening efficiency of engineering waste sludge using electro osmosis |
| topic | electro-osmosis potential ferrum electrode graphite electrode electro-osmotic efficiency |
| url | https://www.swdzgcdz.com/en/article/doi/10.16030/j.cnki.issn.1000-3665.202311003 |
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