Knowledge Management System Of Institute of process engineering,CAS
| High-temperature reduction of chromium(VI) in solid alkali | |
| Alternative Title | J. Hazard. Mater. |
| Wang, TG; Li, ZH | |
| 2004-08-09 | |
| Source Publication | JOURNAL OF HAZARDOUS MATERIALS
 |
| ISSN | 0304-3894 |
| Volume | 112Issue:1-2Pages:63-69 |
| Abstract | Chromium (VI) that exists in many industrial wastes is considered highly toxic. One of the most common ways to dispose of these wastes is to reduce chromium (VI) to chromium (III), which is less toxic and can be relatively easily removed or fixed. However, the reduction of chromium (VI) is often conducted in acidic solutions and the chromium (VI) in alkaline solid wastes is hardly to be fully removed. The present study describes a new method for reducing chromium (VI) in alkaline solid. By mixing alkaline solids containing chromium (VI) with an aqueous sucrose solution and then calcinating the resulting mixture at 400-600 degreesC in inertial gas, chromium (VI) can be easily reduced to an insoluble chromium oxide. The reduced fraction can reach up to 99% in 10-20 min under the conditions of temperature above 600 degreesC and sucrose/chromium (VI) greater than or equal to 1 g/1 g. (C) 2004 Elsevier B.V. All rights reserved.; Chromium (VI) that exists in many industrial wastes is considered highly toxic. One of the most common ways to dispose of these wastes is to reduce chromium (VI) to chromium (III), which is less toxic and can be relatively easily removed or fixed. However, the reduction of chromium (VI) is often conducted in acidic solutions and the chromium (VI) in alkaline solid wastes is hardly to be fully removed. The present study describes a new method for reducing chromium (VI) in alkaline solid. By mixing alkaline solids containing chromium (VI) with an aqueous sucrose solution and then calcinating the resulting mixture at 400-600 degreesC in inertial gas, chromium (VI) can be easily reduced to an insoluble chromium oxide. The reduced fraction can reach up to 99% in 10-20 min under the conditions of temperature above 600 degreesC and sucrose/chromium (VI) greater than or equal to 1 g/1 g. (C) 2004 Elsevier B.V. All rights reserved. |
| Keyword | Hexavalent Chromium Reduction Removal Alkaline Solid Calcination |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology ; Life Sciences & Biomedicine |
| DOI | 10.1016/j.jhazmat.2004.03.022 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | HYDROGEN-SULFIDE ; SOLUBLE CHROMATE ; WOOD ASH ; KINETICS ; IRON(II) |
| WOS Research Area | Engineering ; Environmental Sciences & Ecology |
| WOS Subject | Engineering, Environmental ; Engineering, Civil ; Environmental Sciences |
| WOS ID | WOS:000222722500006 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Version | 出版稿 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/4942 |
| Collection | 研究所（批量导入） |
| Affiliation | Chinese Acad Sci, Inst Proc Engn, Beijing 100080, Peoples R China |
| Recommended Citation GB/T 7714 | Wang, TG,Li, ZH. High-temperature reduction of chromium(VI) in solid alkali[J]. JOURNAL OF HAZARDOUS MATERIALS,2004,112(1-2):63-69. |
| APA | Wang, TG,&Li, ZH.(2004).High-temperature reduction of chromium(VI) in solid alkali.JOURNAL OF HAZARDOUS MATERIALS,112(1-2),63-69. |
| MLA | Wang, TG,et al."High-temperature reduction of chromium(VI) in solid alkali".JOURNAL OF HAZARDOUS MATERIALS 112.1-2(2004):63-69. |
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| High-temperature red（119KB） | 限制开放 | CC BY-NC-SA | Application Full Text | |||
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