Osmanlioglu Ahmet Erdal
Radioactive Waste Management Unit, Turkish Atomic Energy Authority, Cekmece Nuclear Research and Training Center, Altinsehir Yolu 5 km. Halkali, 34303K Cekmece, Istanbul, Turkey.
Appl Radiat Isot. 2007 Jan;65(1):17-20. doi: 10.1016/j.apradiso.2006.08.012. Epub 2006 Oct 16.
Diatomite has a number of unique physical properties and has found diversified industrial utilization. The filtration characteristics are particularly significant in the purification of liquids. The purpose of this study was to test natural diatomaceous earth (diatomite) as an alternative material that could be used for removal of radioactivity from liquid waste. A pilot-scale column-type device was designed. Natural diatomite samples were ground, sieved and prepared to use as sorption media. In this study, real waste liquid was used as radioactive liquid having special conditions. The liquid waste contained three radionuclides (Cs-137, Cs-134 and Co-60). Following the treatment by diatomite, the radioactivity of liquid waste was reduced from the initial 2.60 Bq/ml to less than 0.40 Bq/ml. The results of this study show that most of the radioactivity was removed from the solution by processing with diatomite.
硅藻土具有许多独特的物理性质，并已得到多种工业应用。其过滤特性在液体净化中尤为重要。本研究的目的是测试天然硅藻土作为一种可用于去除液体废物中放射性的替代材料。设计了一个中试规模的柱式装置。将天然硅藻土样品研磨、筛分并制备用作吸附介质。在本研究中，实际废液用作具有特殊条件的放射性液体。该废液含有三种放射性核素（铯 - 137、铯 - 134和钴 - 60）。经过硅藻土处理后，废液的放射性从初始的2.60贝克勒尔/毫升降低到小于0.40贝克勒尔/毫升。本研究结果表明，通过硅藻土处理，大部分放射性已从溶液中去除。
