Sono-assisted adsorption of organic compounds contained in industrial solution on iron nanoparticles supported on clay: Optimization using central composite design
Sono-assisted adsorption of organic compounds contained in industrial solution on iron nanoparticles supported on clay: Optimization using central composite design
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DOI：
10.1016/j.ultsonch.2020.105134
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发表时间：
2020-10-01
影响因子：
8.4
通讯作者：
Benzina, Mourad
中科院分区：
文献类型：
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作者：
Hamza, Wiem;Fakhfakh, Nadim;Benzina, Mourad
工业磷酸(IPA)溶液中的有机物(O.S)经常被跟踪放置，给IPA的质量带来了严重的问题。研究了铁插层膨润土纳米颗粒(IIBN)与超声辐射相结合的超声吸附技术处理含P_2O_5 54%的IPA的效果，并用X射线衍射、扫描电子显微镜和BET对所制备的吸附剂进行了表征。在酸性pH和温度为40+/-1℃的条件下，考察了吸附剂用量、摩尔比(OH/Fe)和时间等条件对超声辅助保留的影响，并用NEMROOD软件优化了超声辅助保留参数。通过方差分析软件揭示了研究条件对生物体最终截留能力的交互影响。在超声时间为0.5h、吸附剂用量为1.2g/L、摩尔比(OH/Fe)为1.37的条件下，可保持83%以上的有机物去除效果。通过三个参数的保留等温线和动力学分析，评价了O.S的吸附性能。
Organic substance (O.S) in industrial phosphoric acid (IPA) solution is often tacked placed creates a major problem for IPA quality. This study was performed to assess the efficiency of Iron Intercalated Bentonite Nanoparticles (IIBN) coupled with the ultrasonic irradiation named sono-adsorption process for treating IPA 54% P2O5 contained O.S. XRD, SEM and BET were performed for the characterization of as-prepared adsorbent. Several conditions such as adsorbent dosage, molar ratio (OH/Fe) and time were investigated in retention experiments at acidic pH and T degrees of 40 +/- 1 degrees C. The sono-assisted retention parameters were optimized by using NEMROOD software. The interaction impact of study condition on the final retention capability of the organism has been revealed by ANOVA software. Accordingly, the organic substance removal can be retained more than 83% by a sonication time of 0.5 h, absorbent dosage of 1.2 g/L and a molar ratio (OH/Fe) of 1.37. The absorbability of O.S was also evaluated by using the three parameters retention isotherms and kinetic analysis.