Removal and Decomposition of Impurities in Wastewater From the HyBRID Decontamination Process of the Primary System in a Nuclear Power Plant

Eun, Hee-Chul; Jung, Jun-Young; Park, Sang-Yoon; Park, Jeong-Sun; Chang, Na-On; Won, Hoyoun; Sim, Ji-Hyoung; Kim, Seonbyeong; Seo, Bum-Kyoung

doi:10.7733/jnfcwt.2019.17.4.429

Cited by 3 publications

(2 citation statements)

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“…The pH of the process solution is an important indicator for the decontamination process [12,13,15]. Thus, it is necessary to monitor it in real time during the decontamination process.…”

Section: Decontamination Of the Specimens Mounted On The Mockup Of The Rcp Shaftmentioning

confidence: 99%

“…In the SP-HyBRID process, the wastewater is purified by a precipitation method using Ba(OH) 2 , and a filtration method. Finally, BaSO 4 waste containing metal hydroxides is generated, and the use of ion exchange resin is very minor [14,15]. For this reason, the SP-HyBRID process thus can significantly reduce the secondary waste generation when compared with the HP CORD UV process.…”

Section: Introductionmentioning

confidence: 99%

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Decontamination of a Contaminated RCP Shaft Using the SP-HyBRID Process

et al. 2021

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It is very important to minimize the waste generation for decontamination of the reactor coolant system in a nuclear facility. As an alternative to commercial decontamination technologies, an inorganic acid chemical decontamination (SP-HyBRID) process can be effectively applied to the decontamination because it can significantly reduce the waste generation. In this study, the decontamination of a contaminated reactor coolant pump shaft from a nuclear facility was conducted using the SP-HyBRID process. First, equipment for a mock-up test of the decontamination was prepared. Detailed experimental conditions for the decontamination were determined through the mock-up test. Under the detailed conditions, the contaminated shaft was successfully decontaminated. The dose rate on the shaft surface was greatly reduced from 1400 to 0.9 μSv/h, and the decontamination factor showed a very high value (>1500).

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“…The pH of the process solution is an important indicator for the decontamination process [12,13,15]. Thus, it is necessary to monitor it in real time during the decontamination process.…”

Section: Decontamination Of the Specimens Mounted On The Mockup Of The Rcp Shaftmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%