Why site characterisation is important — case study of an Australian legacy low level radioactive waste site

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dc.contributor.authorPayne, TEen_AU
dc.date.accessioned2023-01-25T04:56:22Zen_AU
dc.date.available2023-01-25T04:56:22Zen_AU
dc.date.issued2019-09-10en_AU
dc.date.statistics2023-01-17en_AU
dc.description.abstractShallow burial has been a commonly used method for disposal of low-level radioactive wastes, and numerous legacy disposal sites exist worldwide. The effective management and potential remediation of these sites are important issues in many countries. One example is the Little Forest Legacy Site (LFLS) on the southern periphery of Sydney, Australia. At this site, low-level radioactive wastes were disposed by burial in closely-spaced unlined trenches between 1960 and 1968. The wastes included various radioactive materials, contaminated equipment, beryllium contaminated items, and fissile isotopes in gram quantities (plutonium, 233U and 235U). As with other similar sites worldwide, the decision-making strategy for selecting the appropriate remedial option for the LFLS relies on adequate characterisation of the site. In recent years, a major research project has been undertaken at the LFLS. The results, including geochemical, hydrological, radiochemical and microbiological aspects, have been published in a series of papers. A process known as the ‘bath-tub’ effect was implicated in the mobilisation and dispersion of actinides in surface soils following intense rainfall events (Payne et al. 2013). An experimental trench facility in the vicinity of the legacy trenches has recently been constructed, and offers the potential for comprehensive tests of the geochemical behaviour and hydrology of the legacy trenches. The evolving understanding of the LFLS site will help inform management decisions and contributes to the fundamental knowledge of the mobility of anthropogenic radionuclides in the environment.en_AU
dc.identifier.citationPayne, T. E. (2019). Why site characterisation is important — case study of an Australian legacy low level radioactive waste site. Paper presented to the 8th International Contaminated Site Remediation Conference, Incorporating the 2nd International PFAS Conference, "Cleanup 2019", Adelaide Convention Centre, Adelaide, South Australia, 8-12 September 2019, (pp. 373).en_AU
dc.identifier.conferenceenddate12 September 2019en_AU
dc.identifier.conferencename8th International Contaminated Site Remediation Conference, Incorporating the 2nd International PFAS Conference, 'Cleanup 2019', Adelaide Convention Centre, Adelaide, South Australia, 8-12 September 2019en_AU
dc.identifier.conferenceplaceAdelaide, Australiaen_AU
dc.identifier.conferencestartdate8 September 2019en_AU
dc.identifier.isbn978-1-921431-66-1en_AU
dc.identifier.pagination373en_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/14497en_AU
dc.language.isoenen_AU
dc.publisherCRC CARE Pty Ltd,en_AU
dc.subjectSite characterizationen_AU
dc.subjectAustraliaen_AU
dc.subjectRadiation monitoringen_AU
dc.subjectContaminationen_AU
dc.subjectEnvironmental transporten_AU
dc.subjectLow-level radioactive wastesen_AU
dc.subjectRemedial actionen_AU
dc.subjectUranium 233en_AU
dc.subjectUranium 235en_AU
dc.subjectNew South Walesen_AU
dc.subjectWaste disposalen_AU
dc.titleWhy site characterisation is important — case study of an Australian legacy low level radioactive waste siteen_AU
dc.typeConference Abstracten_AU
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