Removal of Cs+, Sr2+, and Co2+ Ions from the Mixture of Organics and Suspended Solids Aqueous Solutions by Zeolites

Nuclear Engineering and Technology

Fang Fang¹  Chun-Hai Lu¹  Xiang-Hong Fang¹  Lei Zheng² 

[1]College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, No. 1, East 3 Road, ErXian Bridge, ChengHua District, Chengdu 610059, China

[2]Southwest University of Science and Technology, Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, No. 59, Middle Segment of Qinglong Avenue, Mianyang, 621010, China

关键词: Adsorption;    Cesium;    Cobalt;    Organics;    Suspended Solids;    Strontium;    Zeolite;   

DOI  :  10.1016/j.net.2016.11.008

来源: DOAJ

【 摘 要 】

Serving as an excellent adsorbent and inorganic ion exchanger in the water purification field, zeolite 4A has in this work presented a strong capability for purifying radioactive waste, such as Sr2+, Cs+, and Co2+ in water. During the processes of decontamination and decommissioning of suspended solids and organics in low-level radioactive wastewater, the purification performance of zeolite 4A has been studied. Under ambient temperature and neutral condition, zeolite 4A absorbed simulated radionuclides such as Sr2+, Cs+, and Co2+ with an absorption rate of almost 90%. Additionally, in alkaline condition, the adsorption percentage even approached 98.7%. After conducting research on suspended solids and organics of zeolite 4A for the treatment of radionuclides, it was found that the suspended clay was conducive to absorption, whereas the absorption of organics in solution was determined by the species of radionuclides and organics. Therefore, zeolite 4A has considerable potential in the treatment of radioactive wastewater.

【 授权许可】

Unknown