Catalytic ozonation with silicate-based microfiltration membrane for the removal of iopamidol in aqueous solution

Wang, Weiqiang; Chen, Zhonglin; Zhou, Yanchi; Shen, Jimin; Wang, Shuyu; Kang, Jing; Sun, Jingyi; Wang, Zhe; Tong, Yanbin

doi:10.1016/j.seppur.2020.117873

Cited by 12 publications

(3 citation statements)

References 66 publications

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“…Membran Ultra Filtrasi dapat menahan mempunyai ukuran pori lebih kecil dari molekul tersuspensi sehingga dapat menahan molekul tersuspensi dan meloloskan makromolekul, ion multivalen, ion monovalen dan molekul air. Membran UF mempunyai ukuran pori lebih kecil dari ukuran makromolekul sehingga dapat menahan makrmolekul dan dapat meloloskan ion multi dan divalen serta molekul air (Randeep Singh, 2021, Qingchen Lu, 2021, Yi Wang, 2021, Wanyuan Gui, 2021, Weiqiang Wang, 2021. Yang diharapkan dapat terpisah adalah makromolekul yaitu tipikal dari molekul Fucoidan.…”

Section: Dasar Pemisahan Menggunakan Membranunclassified

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Separation of Mineral from Brown Algae Extract using Micro Filtration (MF) and Ultra Filtration (UF) Membrans – Review

Mahreni

2022

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Alga coklat (Phaeophyta) mengandung senyawa aktif seperti karbohidrat, protein, phenolik, lemak, pigmen, vitamin dan mineral. Kandungan mineral alga coklat sekitar 8 -40 % terdiri atas kation Na + , K + , Mg ++ , Fe ++ , Zn ++ , Mn ++ dan logam berat. Bioaktif alga coklat memiliki banyak manfaat, salah satunya adalah Fucoidan sebagai obat kanker. Hambatan pemanfaatan Fucoidan sebagai obat adalah kandungan mineral yang tinggi sehingga mineral tersebut harus dipisahkan. Proses ekstraksi alga coklat menggunakan berbagai metode telah dilakukan dengan tujuan mengisolasi komponen aktif Fucoidan yang bebas dari mineral yang akan menjadi hambatan dalam memanfaatkan komponen aktif. Dalam makalah ini akan diuraikan beberapa metode terbaru ekstraksi bahan aktif alga coklat dan proses pemisahan mineral menggunakan membran Mikro Filtrasi (MF) dan Ultra Filtrasi (UF). Membran MF dan UF dapat memisahkan molekul kecil seperti kation (mineral) dapat lolos melalui membran sehingga makromolekul seperti karbohidrat, lemak, protein, pigmen, phenolic dan vitamin dapat terpisah dari mineral dan diperoleh bahan aktif tanpa adanya mineral. Tujuan dari makalah ini adalah memberikan arah penelitian dalam eksplorasi bahan aktif alga coklat untuk aplikasi farmasi dan kosmetik tanpa efek samping yang disebabkan oleh kandungan logam atau mineral yang tinggi di atas nilai ambang batas di dalam ekstrak alga coklat.

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Section: Dasar Pemisahan Menggunakan Membranunclassified

“…Dasar pemilihan membran dapat dijelaskan pada Gambar 6, Gambar 6. Mekanisme pemisahan menggunakan beberapa jenis membran dari Mikrofiltrasi (MF), Ultrafiltrasi (UF), Nanofiltrasi (NF) dan Reverse Osmosis (RO) (Randeep Singh, 2021, Qingchen Lu, 2021, Yi Wang, 2021, Wanyuan Gui, 2021, Weiqiang Wang, 2021…”

Section: Ultrafiltrasiunclassified

Separation of Mineral from Brown Algae Extract using Micro Filtration (MF) and Ultra Filtration (UF) Membrans – Review

Mahreni

2022

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“…Our research team [ 14 ] fabricated a microfiltration membrane (MF) by using quartz and cement for catalytic ozonation of p -CNB in water with a 50% higher reaction rate than ozone oxidation alone. Furthermore, the prepared silicate-based membrane was used to catalyze the ozone-based oxidation of iopamidol in aqueous solution [ 15 ]. The reaction ratio constant of iopamidol removal by catalytic ozonation is 0.2866 min −1 .…”

Section: Introductionmentioning

confidence: 99%

Catalytic Efficiency of Carbon-Cementitious Microfiltration Membrane on the Ozonation-Based Oxidation of Small Molecule Organic Compounds and Its Alkaline Buffering Effect in Aqueous Solution

et al. 2021

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In this study, powdered activated carbon (PAC) was added to replace the silica in a cementitious microfiltration membrane (CM) to solve the problems of the low mechanical strength and short lifetime of CMs. The carbon-cementitious microfiltration membrane (CCM) was fabricated by the dry pressing method and cured at room temperature. The bending strength of CCM was 12.69 MPa, which was about three times more than that of CM. The average pore size was 0.129 μm, and was reduced by about 80% compared to that of CM. The addition of PAC did not reduce the degradation efficiency of membrane catalytic ozonation. Because of the strong alkaline buffering ability of CCM, the CCM–ozone coupling process could eliminate the effect of the pH value of the solution. The strong alkaline environment inside the membrane pores effectively accelerated the ozone decomposition and produced oxidizing radicals, which accelerated the reaction rate and improved the utilization rate of ozone. The CCM–catalytic ozonation reaction of organic compounds occurred within the pores and membrane surface, resulting in the pH of the solution belonging to the neutral range. The addition of PAC accelerated the mass transfer and made the pollutants and oxidant react in the membrane pores and on the membrane surface. The reuse experiments of the CCM–ozone coupling process for removing nitrobenzene demonstrated that CCM has good catalytic activity and reuse stability. It broadens the application scope of CCM in the field of drinking water and provides theoretical support for the practical application of CCM.

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Unraveling the multiple roles of VUV mediated hydroxyl radical in VUV/UV/chlorine process: Kinetic simulation, mechanistic consideration and byproducts formation

Qin

Liu

Zhuang

et al. 2022

Chemical Engineering Journal

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Catalytic ozonation with silicate-based microfiltration membrane for the removal of iopamidol in aqueous solution

Cited by 12 publications

References 66 publications

Separation of Mineral from Brown Algae Extract using Micro Filtration (MF) and Ultra Filtration (UF) Membrans – Review

Separation of Mineral from Brown Algae Extract using Micro Filtration (MF) and Ultra Filtration (UF) Membrans – Review

Catalytic Efficiency of Carbon-Cementitious Microfiltration Membrane on the Ozonation-Based Oxidation of Small Molecule Organic Compounds and Its Alkaline Buffering Effect in Aqueous Solution

Unraveling the multiple roles of VUV mediated hydroxyl radical in VUV/UV/chlorine process: Kinetic simulation, mechanistic consideration and byproducts formation

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