Study on the leachable behavior of cation exchange resins
| Autor: | Tung-Jen Wen, Charles-Fang Chu, Dah-Yu Kao, Liang-Cheng Chen |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Total organic carbon
Nuclear and High Energy Physics Chromatography Ion exchange Chemistry technology industry and agriculture 02 engineering and technology 021001 nanoscience & nanotechnology Gel permeation chromatography chemistry.chemical_compound 020401 chemical engineering Nuclear Energy and Engineering Environmental chemistry Water chemistry Leachate 0204 chemical engineering Sulfate 0210 nano-technology |
| Zdroj: | Journal of Nuclear Science and Technology. 53:921-927 |
| ISSN: | 1881-1248 0022-3131 |
| DOI: | 10.1080/00223131.2015.1082948 |
| Popis: | The amount of total organic carbon (TOC) leached from cation exchange resins (CERs) in condensate demineralizers are related to the quality of reactor water in nuclear power plants (NPPs). In the recent years, quality problems of CERs used by ChinShan and KuoSheng NPPs have been identified. Prior to use, TOC and sulfate concentrations must be reduced to meet the criteria; however, this involves an extended purification process and heavy use of water resources. Even in cases where resin can be used, the quality of the water in the reactor remains poor. This study, therefore, investigated the leachates of resins from these NPPs in order to establish a reference for the quality of deep bed CERs. Gel permeation chromatography and ion-pair chromatography were used to identify molecular peaks in the CER leachates in order to elucidate the molecular distributions. We also sought to determine TOC and sulfate concentrations of post-UV treatment using long-term soaking tests, in which the solutions used to soak res... |
| Databáze: | OpenAIRE |
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