| 학회 |
한국화학공학회 |
| 학술대회 |
2004년 봄 (04/23 ~ 04/24, 공주대학교) |
| 권호 |
10권 1호, p.541 |
| 발표분야 |
에너지/환경 |
| 제목 |
Pyrolysis and oxidative pyrolysis characteristics of waste cation exchange resins doped with radioactive metal surrogates |
| 초록 |
Ion exchange resins are used in water treatment system of nuclear power plant. The amount of the waste ion exchange resins is increasing. Therefore, the effective method to reduce volume of the resins and to stabilize metals captured by the resins is required. The purpose of this study is to evaluate thermal decomposition characteristics of the resins under pyrolysis and oxidative pyrolysis conditions using the TGA (thermogravimetric analyzer). In this study, cation exchange resins doped with radioactive metal surrogates were used as sample resins. The resins were heated to 900 ℃ in the TGA with a ramping rate of 3 ℃/min under N2 and O2 atmospheres. About 23% and 0% of pure resins remained under oxygen free atmosphere (N2>99.99%) and oxidizing atmosphere (O2>99.99%) respectively. Morphology of residues was observed by scanning electron microscope (SEM). Metals in the residues were speciated using X-ray diffractometer (XRD). Cobalt existed as CoO and Co3O4, and strontium existed as a SrSO4. |
| 저자 |
양희철, 은희철, 조용준, 유재형, 김준형
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| 소속 |
한국원자력(연) |
| 키워드 |
pyrolysis; oxidative pyrolysis; waste cation exchange resins; radioactive metal surrogates
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| E-Mail |
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| 원문파일 |
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