稻壳废弃物去除水溶液中镉(II)的研究

A. Saeed, N. Y. Harun, S. Sufian, A. Ghaleb, A. H. Jagaba, H. G. Mohammed, H. Abdulrab
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引用次数: 5

摘要

稻壳是生产一系列增值产品的最佳原料废料之一,无论是作为原料、灰分还是木炭。利用扫描电镜(SEM)、傅立叶变换红外光谱(FTIR)和BET表面积测量表征对所处理的吸附剂进行了描述。在批量研究中考察了初始浓度、溶液pH和旋转时间的影响。与纯稻壳相比,改性稻壳吸附剂的表面积更大,去除率好,吸附量最高。在初始浓度为25mg/L时,改性稻壳和纯稻壳对镉的最大去除率分别为78%和67%。最佳pH值为6 pH,搅拌初期去除率和吸附量较高,搅拌3 h时达到最高,之后无明显改善。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Removal of Cadmium (II) from Aqueous Solution by Rice Husk Waste
Rice husk is one of the best possible ingredients waste for producing a range of value-added goods, whether in the form of raw materials, ash, or char. Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), and BET surface area measurements Characterization were used to describe the adsorbent that had been processed. The impact of initial concentration, solution pH, and rotation time was investigated in the batch study. The modified rice husk adsorbent obtained a larger surface area, showed a good removal rate, and highest adsorption capacity compared to the pure rice husk. The maximum removal rate of cadmium obtained by modified rice husk and pure rice husk were 78% and 67% at 25mg/L initial concentration, respectively. The optimal pH was found at a 6-pH solution and the removal rate and adsorption capacity were found high at an early stage of agitation time and reach the highest at 3 hours of agitation time then no significant improvement occurred.
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