Performance of novel biopolymer-based activated carbon and resin on phosphate elimination from stream
Performance of novel biopolymer-based activated carbon and resin on phosphate elimination from stream
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DOI：
10.1016/j.colsurfa.2015.03.014
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发表时间：
2015-07
期刊：
影响因子：
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通讯作者：
Xing Xu;Wen Song;De-Yue Huang;B. Gao;Yuanyuan Sun;Q. Yue;Kaifang Fu
中科院分区：
文献类型：
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作者：
Xing Xu;Wen Song;De-Yue Huang;B. Gao;Yuanyuan Sun;Q. Yue;Kaifang Fu
制备芦竹基树脂（ADI-树脂）和芦竹基活性炭（ADI-AC）用于消除水流中的磷酸盐。生物吸附剂的特性（BET 表面积、Zeta 电位、SEM、FTIR 和拉曼光谱）表明一些所需的官能团已接枝到 ADI 树脂上。即使经过七次吸附和解吸循环后，再生的 ADI 树脂仍能达到 92-94% 的吸附容量。然而，在相同的解吸条件下，只有大约 15-25% 的磷酸盐可以从 ADI-AC 中解吸。还设计了具有不同粒径的ADI-树脂/ADI-AC的分层填充柱。当引入不同粒径的分层树脂时，ADI树脂的床层利用率大大提高。相比之下，填充在柱中的分层ADI-AC的性能不如分层ADI-树脂。
Arundo donax Linn-based resin (ADI-resin) andArundo donax Linn-based activated carbon (ADI-AC) were prepared for phosphate elimination from stream. Characteristics (BET surface area, Zeta potential, SEM, FTIR, and Raman spectra) of the biosorbents indicated that some required functional groups have been grafted onto the ADI-resin. The regenerated ADI-resin achieved 92–94% of adsorption capacity even after seven cycles of adsorption and desorption. However, only about 15–25% of phosphate could be desorbed from the ADI-AC at the same desorption conditions. A stratification-packed column with different particles sizes of ADI-resin/ADI-AC was also designed. When the stratified resins with different particle sizes were introduced, the bed utilization of ADI-resin was greatly enhanced. In contrast, the stratified ADI-AC packed in column was not effective as the performance of stratified ADI-resin.