A new inorganic–organic hybrid composite, comprising Monosodiumtitanate(MST) and AmidoximatedPolyacrylonitrile (MPA), has been developed in bead form for the separation of uranium from contaminated water.Inline with the design objectives, asynergistic effect on uranium uptake by MST and Amidoximewas obtained.The measured U uptake capacity is 280 mg/g, the highest ever reported U uptake by any composite in column useable form. U uptake by the composite follows the Langmuir isotherm mechanism. The uptake performance remains unaltered even in the presence of sulphate, nitrate, chloride ion, and carbonate ions. The column performance of the composite was demonstrated by removing U over 12,000-bed volumes of waste effluent from 1000 ppb to down below < 60 ppb level. A mathematicalmodel is developed and used to predict process performance under various operating conditions mimicking scale-up operations with an eye in generating potable water from groundwater.

一种新的无机-有机杂化复合材料，包括钛酸一钠 (MST) 和胺肟化聚丙烯腈 (MPA)，已开发成珠状，用于从污染水中分离铀。根据设计目标，获得了 MST 和胺肟对铀吸收的协同效应. 测得的 U 吸收容量为 280 mg/g，这是任何柱可用形式的复合材料所报道的最高 U 吸收量。复合材料对 U 的吸收遵循朗缪尔等温线机制。即使在硫酸根、硝酸根、氯离子和碳酸根离子存在的情况下，吸收性能也不会改变。通过将超过 12,000 床体积的废液中的 U 从 1000 ppb 降低到低于 60 ppb 的水平，证明了复合材料的柱性能。