Sustainable reuse of modified incineration sewage sludge ash (M-ISSA) for stabilization of highly As-contaminated soil
文献类型：期刊论文
| 作者 | Gao, Shengya1,2; Wang, Qiming1,2,5; Hui, Yin3; Ma, Zihan1,2; Li, Jiang-shan4,5; Poon, Chi Sun1,2,5 |
| 刊名 | JOURNAL OF CLEANER PRODUCTION
 |
| 出版日期 | 2024-09-25 |
| 卷号 | 472页码:8 |
| 关键词 | Incinerated sewage sludge ash Modification Arsenic Stabilization |
| ISSN号 | 0959-6526 |
| DOI | 10.1016/j.jclepro.2024.143477 |
| 英文摘要 | Arsenic (As) is an environmental hazardous contaminant, seriously threatening human health. Chemical activation can effectively enhance As adsorption performance of incinerated sewage sludge ash (ISSA). Through modification, the iron (mainly present as hematite) in the ISSA was rearranged to KFeO2. 2 . Based on the results of the present study, addition of modified ISSA (M-ISSA) in contaminated soil had a positive effect on As immobilization. A set of laboratory batch experiments including toxicity characteristic leaching procedure (TCLP), synthetic precipitation leaching procedure (SPLP), and sequential extraction procedure (SEP) were carried out to investigate effects of M-ISSA dosages and curing time on immobilization of As contaminated soil (100, 500, 1000 mg As/kg soil). Results indicated that a higher addition amount of M-ISSA enhanced the effectiveness of stabilization and significantly reduced the As leachability after a stabilization period of 28 d. Particularly, in 1000 mg As/kg soil, M-ISSA reduced the labile As concentration in the TCLP test from 21.45 to 0.73 mg/L and in the SPLP test from 27.75 mg/L to 7.83 mg/L. M-ISSA transformed As in soil to more stable forms that were bounded to amorphous iron hydrous oxides. The number of stable fractions saw a sharp rise from 31% to 60%, when the M-ISSA addition was 5%. Different characterizations were conducted including X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and scanning electron microscope (SEM), in order to demonstrate the stabilization behavior and mechanism of As and M-ISSA. The main stabilization mechanism was associated with adsorption and coprecipitation processes. Overall, this study proposed a novel recycling method for ISSA that could be chemically modified into a reliable and efficient additive for the immobilization of As contaminated soil. |
| 资助项目 | National Natural Science Foundation of China[51861165104] ; Hong Kong Research Grants Council Joint Research Scheme[N_PolyU511/18] ; Environment and Conservation Fund of the Hong Kong SAR government[P0014071] |
| WOS研究方向 | Science & Technology - Other Topics ; Engineering ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:001303911300001 |
| 出版者 | ELSEVIER SCI LTD |
| 源URL | [http://119.78.100.198/handle/2S6PX9GI/42405]  |
| 专题 | 中科院武汉岩土力学所 |
| 通讯作者 | Li, Jiang-shan; Poon, Chi Sun |
| 作者单位 | 1.Hong Kong Polytech Univ, Dept Civil & Environm Engn, Hong Kong, Peoples R China 2.Hong Kong Polytech Univ, Res Ctr Resources Engn Carbon Neutral, Hong Kong, Peoples R China 3.Huazhong Agr Univ, Coll Resources & Environm, Minist Agr, Key Lab Arable Land Conservat Middle & Lower Reach, Wuhan 430070, Peoples R China 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, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Shengya,Wang, Qiming,Hui, Yin,et al. Sustainable reuse of modified incineration sewage sludge ash (M-ISSA) for stabilization of highly As-contaminated soil[J]. JOURNAL OF CLEANER PRODUCTION,2024,472:8. |
| APA | Gao, Shengya,Wang, Qiming,Hui, Yin,Ma, Zihan,Li, Jiang-shan,&Poon, Chi Sun.(2024).Sustainable reuse of modified incineration sewage sludge ash (M-ISSA) for stabilization of highly As-contaminated soil.JOURNAL OF CLEANER PRODUCTION,472,8. |
| MLA | Gao, Shengya,et al."Sustainable reuse of modified incineration sewage sludge ash (M-ISSA) for stabilization of highly As-contaminated soil".JOURNAL OF CLEANER PRODUCTION 472(2024):8. |
入库方式： OAI收割
来源：武汉岩土力学研究所
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