期刊名称:Journal of Earth Sciences and Geotechnical Engineering
印刷版ISSN:1792-9040
出版年度:2019
卷号:9
期号:3
页码:229-237
语种:English
出版社:Scienpress Ltd
摘要:In this paper we re-examined the transfer equation of radioactive substances in theground and offer a more realistic transfer equation and other equations available forassessment of the ground contamination from radioactive-contaminatedgroundwater. The transfer equation takes into account kinematic and hydrodynamicconsiderations on mass conservation of mobile radioactive substances in a porousmedium that typifies the ground. The other equations available for contaminationassessment are concerned with deposition in contaminated areas and discharge flowof contaminants to the areas contiguous to contaminated area. The equations arederived on the understanding that disintegration of the radioactive substancesadhering onto solids in the ground porous medium occurs as a sink term during thetransfer of mobile radioactive substances. Finally, it is noted that the discharge ofgroundwater due to advective flow will be predominant in comparison to thedischarge by diffusion.
关键词:Radioactivecontamination; Transfer equation; Deposition; Assessment; Discharge;Groundwater.