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Showing 1-30 of 1103 results for "ultrafiltration" within Papers
Fan Bu et al.
Chemosphere, 231, 349-356 (2019-05-28)
Ultrafiltration (UF) technology is considered an efficient water treatment method. In recent years, researchers have been committed to enhancing the treatment efficiency of UF and alleviating membrane fouling. An effective method is to achieve this is through the use of
Fátima Rojas-Serrano et al.
Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering, 50(13), 1376-1385 (2015-08-12)
A pilot-scale study was made for drinking-water production from low-quality influents with in-line coagulation as pre-treatment of aerated ultrafiltration. Optimum flocculation parameters were previously determined in the laboratory, searching for large and strong flocs that could resist aeration without increasing
Mauricio Durigan et al.
Applied and environmental microbiology, 86(23) (2020-09-20)
Cyclospora cayetanensis is a protozoan parasite that causes foodborne and waterborne diarrheal illness outbreaks worldwide. Most of these outbreaks are associated with the consumption of fresh produce. Sensitive and specific methods to detect C. cayetanensis in agricultural water are needed
Ting Liu et al.
Water research, 156, 425-433 (2019-04-05)
Membrane separation technology is an important option for the treatment of contaminated surface waters but the relatively high cost of materials and membrane fabrication represent a significant obstacle to the wider use of membrane processes. In this study, we describe
Shin La Shu et al.
Methods in molecular biology (Clifton, N.J.), 2265, 289-304 (2021-03-12)
Cells release extracellular vesicles (EVs) that can be detected both in vivo and in cell culture medium. Among EVs, exosomes are 50-150 nm vesicles that are systematically packaged into multivesicular bodies for release into the external environment. In cancer, these intentionally
Li Liang et al.
Journal of food science, 87(10), 4522-4537 (2022-09-15)
To make full use of tea seed cake protein (TSCP), this study investigated the physicochemical and functional properties of TSCP, including the TSCP extract and three ultrafiltration fractions TSCP-1 (Mw > 10 kDa), TSCP-2 (3.5 kDa < Mw < 10 kDa), and TSCP-3 (Mw < 3.5 kDa). After ultrafiltration, the content, thermal
O Ferrer et al.
Water research, 83, 121-131 (2015-07-05)
The feasibility of substituting a conventional pre-treatment, consisting of dioxi-chlorination, coagulation/flocculation, settling and sand filtration, of a drinking water treatment plant (DWTP) by direct ultrafiltration (UF) has been assessed from a microbiological standpoint. Bacterial indicators, viral indicators and human viruses
Wentao Xu et al.
Journal of environmental management, 269, 110758-110758 (2020-06-21)
Membrane separation technology is recognized as a competitive approach to remove Pb2+ from water system due to its high efficiency and low operating cost. In present study, a simple and facile approach was developed to fabricate covalent organic framework (COF)
Wen Ma et al.
Journal of colloid and interface science, 523, 254-265 (2018-04-08)
The ability of bacteriophages to infect and destroy specific bacteria makes them promising antimicrobial agents in industrial processes. In this study, potential strategies of bacteriophage-facilitated biofouling control during membrane ultrafiltration (UF) were investigated through use of the model T4 bacteriophage
Kirsten Exall et al.
The Science of the total environment, 461-462, 371-376 (2013-06-08)
To better understand the environmental mobility of sulfonamide antibiotics and develop improved processes for their removal during wastewater treatment, stirred cell ultrafiltration (UF) experiments were conducted using both synthetic and real wastewater effluent. The interactions between selected sulfonamides (sulfaguanidine, sulfathiazole
Shulin Chen et al.
Food chemistry, 188, 350-356 (2015-06-05)
Alpha-chain subunits were separated from tilapia skin gelatin using ultrafiltration, and the physicochemical properties of obtained subunits were investigated. As a result, α1-subunit and α2-subunit could be successfully separated by 100 kDa MWCO regenerated cellulose membranes and 150 kDa MWCO
Gábor Veréb et al.
Environmental science and pollution research international, 27(18), 22195-22205 (2020-02-16)
In the present study, commercial PES, PVDF, PTFE ultrafilter membranes, and two different nanomaterial (TiO2 and TiO2/CNT composite)-covered PVDF ultrafilter membranes (MWCO = 100 kDa) were used for the purification of an industrial oil-contaminated (produced) wastewater, with and without ozone pretreatment to compare
Mahsa Hadidi et al.
Biotechnology progress, 32(6), 1531-1538 (2016-10-22)
Charged polysaccharides are used in the food industry, as cosmetics, and as vaccines. The viscosity, thermodynamics, and hydrodynamic properties of these charged polysaccharides are known to be strongly dependent on the solution ionic strength because of both inter- and intramolecular
Achyuta Teella et al.
Biotechnology progress, 31(1), 90-96 (2014-11-05)
Membranes used in bioprocessing applications are typically sanitized before use to insure aseptic operation. However, there is almost no information in the literature on the effects of this preuse sanitization step on the properties of the membrane. Experiments were performed
Ping Du et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 967, 28-35 (2014-07-27)
Docetaxel lipid microsphere (DT-LM) is a novel formulation of docetaxel without Tween-80. A sensitive, robust and reproducible ultrafiltration (UF) followed by UPLC-MS/MS method was developed and validated for the quantification of unbound docetaxel in human plasma using paclitaxel as IS.
Daniel A Palacio et al.
Chemosphere, 258, 127416-127416 (2020-09-20)
The emergence of antibiotics as pollutants in the environment is one of the worldwide concerns because the bacterial strains generate a threat to the aquatic ecosystem and human health. In this study, an alkylated chitosan polyelectrolyte (ChA-PE) was used in
Xiaoxiang Cheng et al.
Water research, 124, 298-307 (2017-08-05)
Coagulation and ozonation have been widely used as pretreatments for ultrafiltration (UF) membrane in drinking water treatment. While beneficial, coagulation or ozonation alone is unable to both efficiently control membrane fouling and product water quality in many cases. Thus, in
Moon Son et al.
Chemosphere, 179, 194-201 (2017-04-04)
To address the issue of membrane fouling by ubiquitous humic substances, a hydrophilic pore-former-blended polyethersulfone UF membrane was successfully synthesized via the phase inversion method. For the first time, extremely high concentrations of polyvinylpyrrolidone (PVP), up to 20 wt%, were tested
Xiaofei Yu et al.
Water research, 186, 116391-116391 (2020-09-19)
Biofouling is a key problem in membrane filtration, and extracellular polymer substances (EPS) play a key role in biofouling. Biofouling contributes to membrane fouling during ultrafiltration of up-flow biological activated carbon filter (UBACF) effluent. EPS are released when pollutants get
Xiaoxiang Cheng et al.
Chemosphere, 221, 812-823 (2019-01-27)
Powdered activated carbon (PAC) adsorption has been widely applied prior to ultrafiltration membrane for potable water production. However, the impact of PAC adsorption on membrane fouling was still controversial. To solve this problem, combined PAC and peroxymonosulfate (PMS) pretreatment was
Biplob Kumar Pramanik et al.
Environmental technology, 38(5), 579-587 (2016-06-18)
Biological aerated filter (BAF), sand filtration (SF), alum and Moringa oleifera coagulation were investigated as a pre-treatment for reducing the organic and biofouling potential component of an ultrafiltration (UF) membrane in the treatment of lake water. The carbohydrate content was
Neil Miller et al.
Food chemistry, 292, 121-128 (2019-05-06)
Ultrafiltration of Cyclopia genistoides extract was optimised to increase its benzophenone and xanthone content as quantified using HPLC-DAD. Regenerated cellulose (RC) and polyethersulphone membranes with molecular weight cut-offs of 10 and 30 kDa were evaluated in terms of compound enrichment, permeate
Leilei Xu et al.
Journal of food science, 85(11), 4025-4032 (2020-10-11)
Both fermentation degree and preparation method of polysaccharides could influence the bioactivity of tea polysaccharides. The aim of this study was to compare the physicochemical characterization and biological activities of the polysaccharides isolated by ultrafiltration method from three kinds of
Dao-quan Tang et al.
Biomedical chromatography : BMC, 29(8), 1137-1145 (2014-12-30)
In this work, two high-performance liquid chromatography (HPLC) assays were developed and validated for the independent determination of edaravone and taurine using 3-methyl-1-p-tolyl-5-pyrazolone and L-glutamine as internal standards. In in vitro experiments, human plasma was separately spiked with a mixture
Eric R Rhodes et al.
Journal of virological methods, 228, 31-38 (2015-11-13)
The collection of waterborne pathogen occurrence data often requires the concentration of microbes from large volumes of water due to the low number of microorganisms that are typically present in environmental and drinking waters. Hollow-fiber ultrafiltration (HFUF) has shown promise
Junfeng Zhu et al.
Journal of pharmaceutical and biomedical analysis, 134, 100-107 (2016-11-28)
Danhong injection (DHI) is a widely used Chinese medicine injection (CMI) for the clinical treatment of cardiovascular and cerebrovascular diseases. In this study, a simple and efficient in vitro method based on ultrafiltration LC-MS and molecular modeling has been developed
Shanshan Qin et al.
Analytica chimica acta, 886, 98-106 (2015-09-01)
Binding affinity of a small molecule drug candidate to a therapeutically relevant biomolecular target is regarded the first determinant of the candidate's efficacy. Although the ultrafiltration-LC/MS (UF-LC/MS) assay enables efficient ligand discovery for a specific target from a mixed pool
Jan Zaloga et al.
International journal of molecular sciences, 16(8), 19291-19307 (2015-08-20)
Superparamagnetic iron oxide nanoparticles (SPIONs) are frequently used for drug targeting, hyperthermia and other biomedical purposes. Recently, we have reported the synthesis of lauric acid-/albumin-coated iron oxide nanoparticles SEON(LA-BSA), which were synthesized using excess albumin. For optimization of magnetic treatment
Vahid Vatanpour et al.
Carbohydrate polymers, 256, 117413-117413 (2021-01-24)
This study reports the modification of cellulose acetate (CA) membrane with zinc oxide (ZnO)@graphitic carbon nitride (g-C3N4) nanocomposite to improve the antifouling and separation performance. Different combinations of the CA-based membranes such as CA/g-C3N4, CA/ZnO, and CA/ZnO@g-C3N4 were fabricated using
Sajjad Alibeigi-Beni et al.
Environmental science and pollution research international, 28(7), 8235-8245 (2020-10-15)
Treatment of textile wastewater using ultrafiltration membranes was carried out in this study. Since membrane fouling is a major operational problem that decreases the membrane separation efficiency, wastewater was treated with polyaluminum chloride (PACl) and alum (aluminum sulfate) as coagulant
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