Knowledge Management System of Institute of Rock and Soil Mechanics,CAS
| Sewage sludge ash-incorporated stabilisation/solidification for recycling and remediation of marine sediments | |
| Zhou, Yifan1; Cai, Guanghua1,2; Cheeseman, Chris3; Li, Jiangshan4,5; Poon, Chi Sun1,5 | |
| 2022 | |
| 发表期刊 | JOURNAL OF ENVIRONMENTAL MANAGEMENT
 |
| ISSN | 0301-4797 |
| 卷号 | 301页码:11 |
| 摘要 | Finding suitable disposal sites for dredged marine sediments and incinerated sewage sludge ash (ISSA) is a challenge. Stabilisation/solidification (S/S) has become an increasingly popular remediation technology. This study sheds light on the possible beneficial use of ISSA together with traditional binders to stabilise/solidify marine sediments. The performance of the binders on S/S of sediment 1 (clean) and sediment 2 (contaminated) was also compared. The results showed that the use of ISSA as part of the binder was effective in promoting the strength of the sediment with a high initial moisture content due to ISSA porous and high water absorption characteristics. The sediments treated with 10% cement and 20% ISSA attained the highest strength. Also, cement hydration as well as pozzolanic reactions between ISSA and Ca(OH)2 made contributions to the strength development. This was supported by the microstructural analysis, in particular the porosity results. In terms of environmental impacts, two leaching tests (toxicity characteristic leaching procedure and synthetic precipitation leaching procedure) found that all the S/S treated sediment by 10% lime and 20% ISSA resulted in the lowest leachate concentrations under the on-site reuse scenario or under simulative acidic rainfall conditions. Therefore, recycling waste ISSA with lime can be used as an appealing binder to replace cement to stabilise/solidify dredged marine sediments for producing fill materials. |
| 关键词 | Stabilisation solidification Sediments Sewage sludge ash Pore structure Heavy metals leaching Waste recycling |
| DOI | 10.1016/j.jenvman.2021.113877 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology |
| WOS类目 | Environmental Sciences |
| WOS记录号 | WOS:000711214300010 |
| 出版者 | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://119.78.100.198/handle/2S6PX9GI/28361 |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Poon, Chi Sun |
| 作者单位 | 1.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hung Hom, Kowloon, Hong Kong, Peoples R China 2.Nanjing Forestry Univ, Coll Civil Engn, 159 Longpan Rd, Nanjing 210037, Peoples R China 3.Imperial Coll London, Dept Civil & Environm Engn, London SW7 2BU, England 4.Chinese Acad Sci, Inst Rock & Soil Mech, State Key Lab Geomech & Geotech Engn, Wuhan 430071, Peoples R China 5.IRSM CAS HK PolyU Joint Lab Solid Waste Sci, Hung Hom, Kowloon, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhou, Yifan,Cai, Guanghua,Cheeseman, Chris,et al. Sewage sludge ash-incorporated stabilisation/solidification for recycling and remediation of marine sediments[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2022,301:11. |
| APA | Zhou, Yifan,Cai, Guanghua,Cheeseman, Chris,Li, Jiangshan,&Poon, Chi Sun.(2022).Sewage sludge ash-incorporated stabilisation/solidification for recycling and remediation of marine sediments.JOURNAL OF ENVIRONMENTAL MANAGEMENT,301,11. |
| MLA | Zhou, Yifan,et al."Sewage sludge ash-incorporated stabilisation/solidification for recycling and remediation of marine sediments".JOURNAL OF ENVIRONMENTAL MANAGEMENT 301(2022):11. |
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