Separation of ammonia from radioactive wastewater by hydrophobic membrane contactor
作者： Haiyang Liu , Jianlong Wang
DOI: 10.1016/J.PNUCENE.2015.10.011
关键词:
摘要: Abstract The radioactive wastewater produced in the manufacturing process of UO2 kernel for high temperature gas-cooled reactor (HTR) contains concentration ammonia. ammonia has to be removed effectively further treatment wastewater. In this study, hydrophobic membrane contactor (HMC) was adopted remove and recover from at room temperature. operating parameters such as feed velocity initial were determined. addition, effect composition on separation studied. experiment results showed that removal efficiency could reach above 90% after 120 min operation when pH not adjusted. While adjusted 12.0, 95%. mass transfer coefficient increased with increase tended an asymptotic value reached 0.049 m/s. When 2211.6 mg/L, 5864.6 mg/L 23,898.7 mg/L, 95.0%, 94.2% 94.1%, respectively operation, i.e. had almost no separation. coexisting substances, urea tetrahydrofurfuryl alcohol (THFA), also HMC is a promising way separate
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