نتایج جستجو برای: mwco

تعداد نتایج: 125  

Journal: :Journal of Membrane Science 2022

This study aimed to quantify the effect of membrane surface porosity on particulate fouling predicted by MFI-UF method at constant flux. Firstly, polyethersulfone UF membranes (5–100 kDa) was determined using ultra-high resolution SEM. Thereafter, measured suspensions polystyrene particles (75 nm), which were pre-washed remove surfactant and particle fractions smaller than pores membranes, thus...

Journal: :Journal of Membrane Science 2022

3D printed nanofiltration (NF) composite membranes with surface patterns minimising the impact of concentration polarisation (CP) are presented here for first time. The consist a NF polydopamine?coated polyvinylidene fluoride (PVDF/PDA) selective layer on asymmetric wavy (patterned) support. result is membrane pure water permeance 14 ± 2 LMH bar ? 1 and molecular weight cut-off ?550 Da, measure...

ژورنال: طب جنوب 2021
Hajiani , Elham, Osfouri , Shahriyar,

Background: Collagen is a protein that constitutes a major component of connective tissue and has many applications in the medical and non-medical fields. The increase in the world population and the need for proteins have led to a special focus on seafood. Furthermore, jellyfish is a rich and renewable source of collagen. Therefore, many researchers have shown interest in collagen extraction f...

Journal: :Materials research express 2023

Abstract This study investigated the separation of bovine serum albumin using a novel matrix mixed membrane composed poly vinyl pyrrolidone and (phenylene ether sulfone)/Nano-silver. The responsive bare modified PEES/Nano-silver membranes were evaluated morphology, wettability, XRD ATR-FTIR. molecular weight cut-off (MWCO), water content, mean pore radius, porosity, pure flux used to evaluate p...

ژورنال: :یافته 0
میترا غلامی mitra gholami تهران، دانشگاه علوم پزشکی ایران، دانشکده بهداشت، گروه مهندسی بهداشت محیطسازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) سیمین ناصری simin nasseri دانشگاه علوم پزشکی ایرانسازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) رویا میرزایی roya mirzaee دانشگاه علوم پزشکی ایرانسازمان اصلی تایید شده: دانشگاه علوم پزشکی ایران (iran university of medical sciences) قدرت اله شمس خرم آبادی ghodratollah shams-khoramabadi دانشگاه علوم پزشکی لرستانسازمان اصلی تایید شده: دانشگاه علوم پزشکی لرستان (lorestan university of medical sciences)

ø ø مقدمه: رنگزای راکتیو از جمله رنگزای بکار رفته در صنایع نساجی هستند که به دلیل وزن مولکولی بالا و ساختار شیمیایی پیچیده ای که دارند، قابلیت تجزیه پذیری آن ها ناچیز بوده، و بنابراین با روش های معمول تصفیه حذف نمی گردند . هدف از این پژوهش، مطالعه روی کارایی فرایند صافسازی غشایی درحذف مواد رنگزای راکتیو در پساب حاصل از فرآیندهای نساجی می باشد. ø مواد و روش ها: روش انجام تحقیق با توجه به ماهیت آ...

Journal: :Journal of environmental chemical engineering 2021

A photocatalytic Ce-Y-ZrO 2 /TiO ultrafiltration membrane was successfully prepared on a ZrO /SiC support by modified sol-gel process. The top active layer is µm thick, uniform and defect-free. presented molecular weight cut-off (MWCO) of 19 kDa (equivalent to pore size 6 nm) high pure water permeability, 160 Lm ?2 h ?1 bar . hydrophilicity negative surface charge the favoured its great retenti...

comIn the case of pharmaceutical processes, the presence of preservatives can be problematic and the quantity is subject to stringent standards. So, the aim of this study is to quantify the removal of glycerin contained in ultrafiltration flat sheet membranes by filtration and soaking. This is carried out over a wide range of membranes with different characteristics. The selected flat sheet mem...

The recovery of high-quality, valuable end products from cheese whey is a very important industrial process. The aim of this study is to improve the recovered protein content of concentrate stream in cheese whey. The experiments were conducted by using ceramic ultrafiltration (UF) membrane followed by diafiltration (DF) process with a 15kDa molecular weight cut-off (MWCO). The volume concentrat...

Journal: :journal of membrane science and research 0
sophie arenillas eveon-amu maryse drouin amu emmanuel monnin eveon philippe moulin europole de l'arbois, bat. laennec, hall c bp 80, 13545

comin the case of pharmaceutical processes, the presence of preservatives can be problematic and the quantity is subject to stringent standards. so, the aim of this study is to quantify the removal of glycerin contained in ultrafiltration flat sheet membranes by filtration and soaking. this is carried out over a wide range of membranes with different characteristics. the selected flat sheet mem...

2010
A. I. Schäfer A. G Fane T. D. Waite

Membrane processes in drinking water applications are micro(MF), ultra(UF), and nanofiltration (NF). These processes remove turbidity and bacteria (MF), viruses and macromolecules (UF) and small molecules and hardness (NF). Of particular concern in water treatment is the removal of natural organic matter (NOM) which contains potential disinfection by-product precursors. The presence of colloids...

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