Knowledge Management System of Institue of Mechanics, CAS
| Plasma-Arc Technology For The Thermal Treatment Of Chemical Wastes | |
Li YJ(李要建) ; Huang ZQ(黄志勤); Xu YX(徐永香); Sheng HZ(盛宏至); Sheng HZ
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| Source Publication | Environmental Engineering Science
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| 2009 | |
| Pages | 731-737 |
| ISSN | 1092-8758 |
| Abstract | Plasma-arc technology was developed to dispose of chemical wastes from a chemical plant by the Institute of Mechanics, Chinese Academy of Sciences (CAS-IMECH). A pilot plant system with this technology was constructed to destroy two types of chemical wastes. The system included shredding, mixing, and feeding subsystems, a plasma-arc reactor of 150 kW, an off-gas burning subsystem, and a scrubbing subsystem. The additives (CaO, SiO2, and Fe) were added into the reactor to form vitrified slag and capture the hazardous elements. The molten slag was quickly quenched to form an amorphous glassy structure. A direct current (DC) experimental facility of 30kW with plasma-arc technology was also set up to study the pyrolysis process in the laboratory, and the experimental results showed the cooling speed is the most important factor for good vitrified structure of the slag. According to previous tests, the destruction and removal efficiency (DRE) for these chemical wastes was more than 99.999%, and the polychlorinated biphenyls (PCBs) concentration in the solid residues was in the range of 1.28 to 12.9mg/kg, which is far below the Chinese national emission limit for the hazardous wastes. A simplified electromagneto model for numerical simulation was developed to predict the temperature and velocity fields. This model can make satisfactory maximum temperature and velocity distributions in the arc region, as well as the results by the magneto hydrodynamic approach. |
| Keyword | Plasma Arc |
| DOI | 10.1089/ees.2008.0222 |
| Indexed By | SCI |
| Language | 英语 |
| WOS ID | WOS:000264564900004 |
| WOS Research Area | Engineering ; Environmental Sciences & Ecology |
| WOS Subject | Engineering, Environmental ; Environmental Sciences |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/26769 |
| Collection | 等离子体与燃烧中心(2009-2011) |
| Corresponding Author | Sheng HZ |
| Recommended Citation GB/T 7714 | Li YJ,Huang ZQ,Xu YX,et al. Plasma-Arc Technology For The Thermal Treatment Of Chemical Wastes[J]. Environmental Engineering Science,2009:731-737. |
| APA | 李要建,黄志勤,徐永香,盛宏至,&Sheng HZ.(2009).Plasma-Arc Technology For The Thermal Treatment Of Chemical Wastes.Environmental Engineering Science,731-737. |
| MLA | 李要建,et al."Plasma-Arc Technology For The Thermal Treatment Of Chemical Wastes".Environmental Engineering Science (2009):731-737. |
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