Knowledge Management System Of Institute of process engineering,CAS
| Immobilization of by-product sulfate salt slag from high-salt organic wastewater with fly ash in lightweight aggregate ceramsite | |
| He, Qian1,2; Chen, Huixia1,2; Tang, Haiyan1,2; Sun, Jiyuan1,2; Xu, Hongbin1,2; Zhang, You3 | |
| 2021-10-12 | |
| Source Publication | ENVIRONMENTAL TECHNOLOGY
 |
| ISSN | 0959-3330 |
| Pages | 9 |
| Abstract | 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. |
| Keyword | By-product sulfate salt high-salt organic wastewater lightweight aggregate ceramsite heavy metals immobilization |
| DOI | 10.1080/09593330.2021.1985622 |
| Language | 英语 |
| WOS Keyword | SEWAGE-SLUDGE |
| Funding Project | National Water Pollution Control and Control Scientific and Technological Special Project[2018ZX07402005] |
| WOS Research Area | Environmental Sciences & Ecology |
| WOS Subject | Environmental Sciences |
| Funding Organization | National Water Pollution Control and Control Scientific and Technological Special Project |
| WOS ID | WOS:000706228100001 |
| Publisher | TAYLOR & FRANCIS LTD |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/50548 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Chen, Huixia |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 3.Yuhuan Environm Technol Co LTD, Shijiazhuang, Hebei, Peoples R China |
| First Author Affilication | Center of lonic Liquids and Green Engineering |
| Corresponding Author Affilication | Center of lonic Liquids and Green Engineering |
| Recommended Citation 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. |
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