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Sorption kinetic studies using metal chelate embedded polymers for recovery of heavy metals from desalination effluents

机译:使用嵌入金属螯合物的聚合物从海水淡化废水中回收重金属的吸附动力学研究

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摘要

The heavy metals, such as uranium and vanadium, are some of the valuable metals in desalination effluents. Metal Chelate Embedded Polymers (MCEP) in leaflet form were prepared using the post-irradiation induced graft polymerisation technique, with different non-woven thermally bonded fibrous substrate materials. The novel sorbents, synthesised by using accelerator energy beams of 1.25 MeV and 2 MeV, were characterised for their radiation, chemical and mechanical characteristics. The novel sorbent was evaluated under different parametric conditions, in order to study the influence of grafting levels, initial concentration, dissolved solids and contact time. The standard isotherm and diffusion models were fitted to the experimental sorption data and model parameters were evaluated. The sorption characteristics of MCEP for recovery of heavy metals such as uranium and vanadium from desalination effluents were investigated.
机译:铀和钒等重金属是脱盐废水中的一些有价值的金属。使用辐照后诱导的接枝聚合技术,用不同的非织造材料热粘合纤维基质材料制备小叶形式的金属螯合物嵌入聚合物(MCEP)。通过使用1.25 MeV和2 MeV的加速剂能束合成了新型吸附剂,并对其辐射,化学和机械特性进行了表征。为了研究接枝水平,初始浓度,溶解固体和接触时间的影响,在不同的参数条件下对新型吸附剂进行了评估。将标准等温线和扩散模型拟合到实验吸附数据并评估模型参数。考察了MCEP对脱盐废水中重金属如铀和钒的吸附特性。

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