KAJIAN PENGOLAHAN LIMBAH RADIOAKTIF CAIR MENGGUNAKAN BEBERAPA ADSORBEN

ABSTRACT LIQUID RADIOACTIVE WASTE STUDY BASED ON VARIOUS ADSORBENTS. Liquid radioactive waste could generate from the washing process of contaminated equipment and unused liquid radioactive substances. In 2014 Center for Radioactive Waste Technology (CRWT) received 64.240 litres of radioactive waste from reactor activity which mostly consist of Cs-137 and Co-60. Radioactive waste treatment at CRWT is done using evaporation method. If during the treatment process, a malfunction at the supporting apparatus such as the media and power availability occurred, the radioactive waste treatment process will be halted.bThe obstacle has to be overcome by developing another method as the support of the existing treatment method. The study to find an alternative method of radioactive treatment using adsorbent was done by investigating the available literatures that based on method similarity employed in several countries. This the tudy from several countries found that the radioactive waste treatments that commonly used are zeolit, ion exchange resin, bentonit and its modifications. Economically, the zeolit is much better to utilize since it is a natural resource and has an abundant availability. The zeolit and resind are absorbent that has relatively high KTK value compare to other absorbents, which is 0,9 – 2,2 meq/g. Based on the liquid radioactive waste characteristic that process at CRWT, the suitable adsorbent to utilize are zeolit and resin. Results of the study can be applied to further study at laboratory scale using the existing radioactive waste that process at CRWT. Therefore, the method that found in the study is applicable at CWRT. Keyword : radioactive waste, adsorbent, ion exchange resin, zeolite, bentonite