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Mudhar A. Al-Obaidi, Farhan Lafta Rashid, Arman Ameen, Mohammed Kadhom and Iqbal M. Mujtaba
Due to its high pollutant rejection and low energy usage, the spiral wound module of reverse osmosis (RO) process is the most commonly used technology utilised in wastewater treatment. For a spiral wound module, the presence of a feed spacer is important...
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Sourour Mzahma, Joelle Duplay, Dalila Souguir, Raja Ben Amar, Malika Ghazi and Mohamed Hachicha
Several processes have been developed to treat the textile effluents. Membrane technologies are among the most reliable processes for purifying these effluents. However, due to high costs, only reduced quantities are being treated. The recycling practice...
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Francesca Russo, Claudia Ursino, Burcu Sayinli, Ismail Koyuncu, Francesco Galiano and Alberto Figoli
In this work, Rhodiasolv® PolarClean was employed as a more sustainable solvent for the preparation of poly(vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) flat sheet membranes via phase inversion technique by coupling vapour induced phase separation...
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Fotios K. Katrivesis, Varvara Sygouni, Christakis A. Paraskeva and Vagelis G. Papadakis
Surface-water treatment plants use the flocculation?precipitation method followed by gravity filters to remove suspended solids. In the present work, the replacement of gravity filters with ultrafiltration membrane units is suggested to improve the effic...
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Liat Birnhack, Samuel C. N. Tang and Ori Lahav
The paper describes results from operating a new 3-step membrane-based process targeted at separating Mg2+ from seawater in an inexpensive way, with the purpose of using it to enrich desalinated water with magnesium, with as little as possible Cl- and Na...
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Sung Soo Yoo
This study examined the optimum coagulation conditions for reducing irreversible fouling during the in-line coagulation/ultrafiltration (UF) membrane process and assessed the decrease in operating cost. The coagulation conditions that generated charge-ne...
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Carmela Conidi, Francesca Macedonio, Pietro Argurio, Alfredo Cassano and Enrico Drioli
Reverse osmosis (RO) was studied to reduce salinity of flue gas desulfurization (FGD) wastewaters after softening with Na2CO3·H2O and ultrafiltration (UF). Two commercial thin film composite polyamide RO membranes (SWC-25...
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Martin Schulz, Sönke Bünting and Mathias Ernst
The impact of structural properties of three commercial PACs as well as two mechanically ground PACs on their efficiency in NOM removal and fouling reduction in combined adsorption-ultrafiltration (PAC-UF) of northern German groundwater was investigated....
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Xing Zheng, Frederik Zietzschmann, Stephan Plume, Hendrik Paar, Mathias Ernst, Zi Wang, Martin Jekel
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The present work focuses on understanding and control of biopolymer fouling in ultrafiltration of a typical surface water and nearby secondary effluent for direct and indirect portable use. Characterization results show that both kinds of biopolymers are...
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Bin Liu, Fangshu Qu, Shaodong Guo, Huarong Yu, Guibai Li, Heng Liang and Bart Van der Bruggen
The pilot-scale study on a sludge recycling enhanced coagulation?ultrafiltration (UF) process for surface water treatment is investigated in this paper. The impact of the sludge recycling ratio and coagulation stirring strategy on removal, sedimentation ...
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