| 학회 | 한국화학공학회 |
| 학술대회 | 2007년 가을 (10/26 ~ 10/27, 한국과학기술원) |
| 권호 | 13권 2호, p.1820 |
| 발표분야 | 에너지/환경 |
| 제목 | Treatment of industrial wastewaters by supercritical water oxidation |
| 초록 | Supercritical water oxidation had been demonstrated as an effective means of oxidizing wastewaters from PTA, LCD and acrylonitrile manufacturing plant. One can get almost 100% conversion of each wastewater at longer contact time, higher temperature or higher concentration of oxygen. A series of experiments was carried out to examine the effect of the wastewater and oxidant concentration, residence time, reaction temperature and catalysts. Experimental data were used to fit the rate of reaction in a non-linear regression analysis, assuming a zero-order dependence on water concentration. The most important aspect of this study is that valuable materials from wastewaters were recycled as fine particles during SCWO process. Co-Mn catalyst in TPA wastewater is recycled as cobalt oxide and manganese oxide after accelerating decomposition of organics in SCWO commercial plant. Chromium oxide nanoparticles are formed during SCWO of LCD wastewater and recovered above 97%. Cu containing wastewater accelerates the decomposition of acrylonitrile wastewater and Cu ions are precipitated as reusable Cu oxides after SCWO process. |
| 저자 | 신영호1, 이윤우1, 한주희2, 김형진3 |
| 소속 | 1서울대, 2한화석유화학 중앙(연), 3삼남석유화학 |
| 키워드 | wastewater; supercritical water oxidation; SCWO; TPA; LCD; Acrylonitrile |
| 원문파일 | 초록 보기 |
