Abstract
A continuous bulk liquid membrane technique “three-phase flow layered bulk liquid membrane (TPFLBLM)” is proposed. Aspects related to TPFLBLM were studied in thorium removal by D2EHPA as the carrier. The mass transfer coefficients were determined and experimental correlations were developed to determine the local mass transfer coefficients. The results showed that the thorium transport increases with increase in the membrane and acceptor phases flow rates. Based on the developed correlations, more than 90% Th(IV) transfer is achieved after 30 min of the TPFLBLM system continuous operation with a surface-to-volume ratio of 375 containing 600 mL acceptor phase, 42.5 mL organic phase, and 30 mL donor phase circulating with the flow rates of 300, 274 and 78 mL min−1, respectively.
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