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Radioactive waste treatment using precipitant in combination with solid-liquid separation techniques

TitoloRadioactive waste treatment using precipitant in combination with solid-liquid separation techniques
Tipo di pubblicazionePresentazione a Congresso
Anno di Pubblicazione1991
AutoriPietrelli, L., Kavanagh P., and Roofthooft R.
EditorePubl by Elsevier Science Publishers B.V., Amsterdam, Netherlands
Conference LocationLuxembourg
ISBN Number1851666575
Parole chiaveAdditives, Decontamination, Industrial Wastes - Treatment, Precipitants, Radioactive wastes, Separation
Abstract

In order to reduce the overall management cost and improve the long-term safety of disposal, separation of the liquid radioactive waste into different streams for separate conditioning and disposal has been studied using a combination of chemical precipitation and physical separation. In this paper the potential of some novel additives to enhance decontamination level from the following waste streams are reported: Low (LLW) and Medium Level Liquid Waste (MLLW) at Harwell (UK); Low Level Liquid Waste (LLLW) from PWR Tihange nuclear plant in Belgium; First cycle aqueous raffinate (1AW) from MTR fuel reprocessing plant (Italy). Combination of precipitation and ultrafiltration or centrifugation seems promising for improving both decontamination and volume reduction factors for treatment of various radioactive waste. Finally the efficiency of ultrafiltration as a decontamination tool has been assessed on each of radioactive streams in a cooperative programme involving each participating author.

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0026389485&partnerID=40&md5=f7563503615f6b8230232f08d01049cc
Citation KeyPietrelli199187