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المؤلفLee ,Yit Kwan
المؤلفTey ,Wah Yen
المؤلفJawad ,Zeinab Abbas
المؤلفYeap ,Swee Pin
تاريخ الإتاحة2024-04-22T04:57:06Z
تاريخ النشر2022
اسم المنشورChemical Engineering Communications
المصدرScopus
الرقم المعياري الدولي للكتاب986445
معرّف المصادر الموحدhttp://dx.doi.org/10.1080/00986445.2021.1986029
معرّف المصادر الموحدhttp://hdl.handle.net/10576/53998
الملخصThe presence of fine particles has reduced the quality of water resources. Unfortunately, the fine particles normally take a longer time to be removed. Realizing this, the present study aims to employ a magnetic adsorbent to assist a fast separation of the fine particles from their solution. Here, micron-sized SiO2 particles were used as the model fine particles; meanwhile, the magnetic adsorbent was designed by functionalizing iron oxide nanoparticles (IONPs) with chitosan. A process study was done based on the effects of medium pH, IONPs concentration, and contact time. Results implied that both bare IONPs and chitosan functionalized-IONPs (denoted as CF-IONPs) were best in removing SiO2 at pH 4 owing to the electrostatic attraction force. However, as compared to the bare counterpart, CF-IONPs is more suitable for large scale application as it is effective in a wider pH range, requires lesser adsorbent dosage and shorter adsorption time. Despite that, removal of SiO2 using both types of adsorbents were found to follow pseudo-second order kinetic. The obtained data was modeled using either the moving least squares (MLS) or multivariable power least squares (MPLS) method. In particular, the indices of each parameter obtained from the MPLS-generated equation indicated that the most dominant parameter that governing the SiO2 removal by bare IONPs is medium pH, while the one for CF-IONPs is contact time.
راعي المشروعOpen Access funding provided by the Qatar National Library. The authors express the gratitude to UCSI University for financial support through Research Excellence & Innovation Grant (REIG) with project code REIG-FETBE-2020/015.
اللغةen
الناشرTaylor and Francis Ltd.
الموضوعFine particles
magnetic nanoparticles
moving least squares method
multivariable power least squares method
separation
water treatment
العنوانMagnetic separation of micron-sized particles: process study and regression modelling using moving least squares and multivariable power least squares method
النوعArticle
الصفحات1583-1597
رقم العدد12
رقم المجلد209
dc.accessType Abstract Only


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