Adsorption of Uranium-238 with Dasit Stone in Column System

Türközü D. A., Dişli E., Selçuk Zorer Ö., Aladağ E., Öztürk D.

8th international symposium on IN situ nuclear metrology as a tool for radioecology, Aydın, Turkey, 23 - 26 April 2019, pp.52

  • Publication Type: Conference Paper / Summary Text
  • City: Aydın
  • Country: Turkey
  • Page Numbers: pp.52
  • Van Yüzüncü Yıl University Affiliated: Yes


Due to mining activities and increasing energy demand, the amount of uranium released into the nature is rising day by day owing to the increasing number of nuclear power plants. The search for economic and effective removal for the Uranium-238 occupies the agenda of scientists because it negatively affects the health of human and natural habitats and leads to ecotoxicological risks. Adsorption is a eco-friendly process which eliminate the use of chemicals. Adsorbent is a main actor on adsorption process so it should have high adsorption capacity, reusable, economic and abundant in nature. Dasit is a type of volcanic frozen rock that has an aphanitic texture to porphyritic and has an intermediate composition between andesite and rhyolite. In this study aims to investigate the adsorption of Uranium-238 from aqueous solutions with column system. Dasit stone (collected from Meydan Volcaino in Van) which has 250 mesh particle size was filled to column. Prepared uranium-238 solution was feed to column with a peristaltic pump at fixed flow rate (25 mL/min). Under optimum operational conditions maximum removal yield was observed as % 84. In the light of the experimental data obtained, it can be said that dasit has a certain potential in the removal of uranium-238