National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [50774047]; Scientific Research Foundation of Education Department [10A103, 10C1134]; Science and Technology Department of Hunan Province [2010GK2025]
机构署名:
本校为第一且通讯机构
院系归属:
核资源工程学院
摘要:
Experiments on the removal and recovery of U(VI) from aqueous solution by tea waste were conducted. The adsorbent was characterized by scanning electron microscope and energy dispersive spectrometer before and after the adsorption treatment. The removal of U(VI) amounts to 86.80 % at optimum pH 6. The adsorption process reaches its equilibrium in 12 h at 308 K, and the kinetic characteristic can be described by the pseudo-second-order kinetic equation. The amount of adsorption increases from 22.92 to 142.21 mg g−1 with the decrease of tea wast...