Investigation of Heavy Water Extraction by Zeolites in Low Concentration

In nuclear technology, Zeolites are used for separation of 90Sr,137Cs radio isotopes, attraction of Kr and Xe gases induced in nuclear reactors, absorbtion of 129I isotope and have been used to enrich 247Cm , while investigation of heavy water separation by zeolites is fewer than above applications. In this work we want to investigate heavy water extraction by zeolites in low concentrations. NaX, NaY, ZSM and ZA were chosen for our purpose. Deuterium oxide was obtained from Arak Heavy Water Complex. The FT-IR spectrum of heavy water was recorded in the region 500-14000 cm-1 using a spectrophotometer with CaF2 window and then calibration curve for secondary standards was drown and all analysis were obtained from this. All experiments were performed in batch process and change of following parameters was investigated in this work: time, temperature, pressure, zeolites percentage and pH of solution. According to the results of experimens, NaY is the best zeolites for D2O absorption and ZA is the worst.

کلیدواژه ها:

Heavy Water ، Zeolites ، Calibration Curve ، FT-IR Spectrum