Immobilization of by-product sulfate salt slag from high-salt organic wastewater with fly ash in lightweight aggregate ceramsite
文献类型：期刊论文
| 作者 | He, Qian1,2; Chen, Huixia1,2; Tang, Haiyan1,2; Sun, Jiyuan1,2; Xu, Hongbin1,2; Zhang, You3 |
| 刊名 | ENVIRONMENTAL TECHNOLOGY
 |
| 出版日期 | 2021-10-12 |
| 页码 | 9 |
| 关键词 | By-product sulfate salt high-salt organic wastewater lightweight aggregate ceramsite heavy metals immobilization |
| ISSN号 | 0959-3330 |
| DOI | 10.1080/09593330.2021.1985622 |
| 英文摘要 | The lightweight aggregate ceramsite (LAC) was prepared from by-product sulfate salt slag (BPSS) of high-salt organic wastewater with fly ash. The BPSS fixation rate, leaching toxicity, morphological structures and potential environmental risks of heavy metals in LAC were investigated. BPSS can be fixed in LAC when the mass ratio of Fly ash: Kaolin: clay was 7:1:2, the addition of BPSS was 28%, the heating rate was 8 degrees C min(-1), and the calcination temperature was 1100 degrees C. The characteristics of the LAC met the requirements for Chinese lightweight aggregate standards (GB/T17431.2-2010). The Total Organic Carbon (TOC) content of the aqueous leaching liquor in LAC was less than 0.5 mg center dot L-1. And the fixation rate of heavy metal was more than 99%, which meets the requirements of GB 5085.3-2007. The BPSS immobilization mechanisms were mainly related to the formation of new crystal phases, including Leucite (KAlSi2O6), Albite (Na2O center dot Al2O3 center dot 6SiO(2)), Potash Feldspar (K2O center dot Al2O3 center dot 6SiO(2)), Jadeite (NaAlSi2O6), Hauyne ([Na,Ca](8)[Si,Al](12)O-24[SO4](2)), Nosean (Na8Al6Si6O24SO4), and Sodalite (Na8Al6Si6O24[MnO4](2)) by incorporation of heavy metals in high-temperature curing reaction. This work provides an effective method for the harmless treatment and recycling of by-product salt residues from high-salt organic wastewater. |
| WOS关键词 | SEWAGE-SLUDGE |
| 资助项目 | National Water Pollution Control and Control Scientific and Technological Special Project[2018ZX07402005] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000706228100001 |
| 出版者 | TAYLOR & FRANCIS LTD |
| 资助机构 | National Water Pollution Control and Control Scientific and Technological Special Project |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/50547]  |
| 专题 | 中国科学院过程工程研究所 |
| 通讯作者 | Chen, Huixia |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 3.Yuhuan Environm Technol Co LTD, Shijiazhuang, Hebei, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Qian,Chen, Huixia,Tang, Haiyan,et al. Immobilization of by-product sulfate salt slag from high-salt organic wastewater with fly ash in lightweight aggregate ceramsite[J]. ENVIRONMENTAL TECHNOLOGY,2021:9. |
| APA | He, Qian,Chen, Huixia,Tang, Haiyan,Sun, Jiyuan,Xu, Hongbin,&Zhang, You.(2021).Immobilization of by-product sulfate salt slag from high-salt organic wastewater with fly ash in lightweight aggregate ceramsite.ENVIRONMENTAL TECHNOLOGY,9. |
| MLA | He, Qian,et al."Immobilization of by-product sulfate salt slag from high-salt organic wastewater with fly ash in lightweight aggregate ceramsite".ENVIRONMENTAL TECHNOLOGY (2021):9. |
入库方式： OAI收割
来源：过程工程研究所
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