Advances in water treatment by microfiltration, ultrafiltration, and nanofiltration

Koyuncu, İsmail; Şengür, Reyhan; Türken, Türker; Güçlü, Serkan; Paşaoğlu, Mehmet Emin

doi:10.1016/b978-1-78242-121-4.00003-4

Cited by 47 publications

(22 citation statements)

References 86 publications

(85 reference statements)

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“…Generally, carbon-based nanomaterials could deactivate bacteria and viruses [6]. In addition, vertically aligned CNT membranes have the capacity to be used for removing the microbial contaminants from drinking water [4]. CNTs could inhibit the microbial attachment and biofilm formation on the membrane Downloaded by [Deakin University Library] at 01: 21 12 August 2015 A c c e p t e d M a n u s c r i p t surface.…”

Section: -1-carbon Nanotube (Cnts)mentioning

confidence: 99%

“…In each process, membrane properties such as pore size, pore size distribution, cross-sectional structure, and surface chemistry would influence the performance of the membrane. In spite of their mechanical and chemical stability, narrower pore size distribution, higher porosity, and lower tendency to fouling in comparison with the polymeric membranes, ceramic membranes are very expensive; therefore, organic membranes are in priority for industrial applications [4]. However, the present polymeric membranes suffer from a trade-off between membrane permeability and selectivity, fouling problems and in some cases chemical resistance [5][6][7][8][9][10].…”

mentioning

confidence: 99%

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Effects of Inorganic Nano-Additives on Properties and Performance of Polymeric Membranes in Water Treatment

Baghbanzadeh

Rana

Lan

et al. 2015

Separation & Purification Reviews

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Separation using selective polymeric membranes has been well-established as an energy-efficient and cost-effective technology in water treatment and many other applications involving aqueous solutions. However, limited chemical, thermal, and mechanical resistances besides their tendency to fouling and inadequate pure water flux may often restrict their applications. To this end, inorganic materials as additives have been demonstrated to be able to enhance chemical, thermal, and fouling membrane resistances, which demonstrate their great potential for developing novel membranes by using them as additives in polymer matrices. Considering the excellent characteristics of the nano-sized particles, this study reviews the effects of inorganic nanoadditives on properties and performance of polymer/nanoparticle composite membranes. It has been demonstrated that using nanomaterials in a polymer matrix could enhance the mechanical strength and stiffness, wettability, selectivity, water permeability, and antifouling characteristics of the host polymer. Abbreviation ALDAtomic Layer Deposition PAN Polyacrylonitrile AOP Advanced Oxidation Process PAS Polyarylsulfone APTS 3-Aminopropyltriethoxysilane PCTE Polycarbonate BET Brunauer Emmett Teller PDMS Polydimethylsiloxane BP Bucky-Paper PEI Polyethyleneimine BPPO Brominated Poly(phenylene oxide) PES Polyethersulfone BSA Bovine serum albumin PI Polyimide CA Cellulose acetate PMMA Poly(methyl methacrylate) Downloaded by [Deakin University Library] at 01:21 12 August 2015 A c c e p t e d M a n u s c r i p t CNIM Carbon Nanotube Immobilized Membrane PP Polypropylene CNT Carbon Nanotube PSf Polysulfone CTA Cellulose triacetate PTFE Polytetrafluoroethylene DCMD Direct Contact Membrane Distillation PV Pervaporation DLS Dynamic Light Scattering PVA Poly(vinyl alcohol) FO Forward Osmosis PVC Polyvinyl chloride GO Graphene Oxide PVDF Polyvinylidene fluoride ICP Internal Concentration Polarization RO Reverse Osmosis LEP Liquid Entry Pressure SDS Sodium dodecyl sulfate MD Membrane Distillation SEM Scanning Electron Microscopy Downloaded by [Deakin University Library] at 01:21 12 August 2015 A c c e p t e d M a n u s c r i p t MF Microfiltration SGMD Sweep Gas Membrane Distillation MWCNT Multi-Walled Carbon Nanotube SPES SulfonatedPolyethersulfone NF Nanofiltration TMOS Tetramethylorthosilicate NP Nanoparticle TMP Transmembrane Pressure PA Polyamide UF Ultrafiltration PAI Poly(amide-imide) VMD Vacuum Membrane Distillation 1-IntroductionThe increase in water demand for domestic, agricultural and industrial uses resulted in much attention toward water and waste water treatment technologies during the last few decades. The water demand is predicted to increase by 50% over the next few decades [1]. Membrane filtration, advanced oxidation processes (AOPs), and UV irradiation are among the processes that Downloaded by [Deakin University Library] at 01:21 12 August 2015A c c e p t e d M a n u s c r i p t have been used for this purpose [2] and membrane filtration is considered to be one of the most...

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Section: -1-carbon Nanotube (Cnts)mentioning

confidence: 99%

mentioning

confidence: 99%

Effects of Inorganic Nano-Additives on Properties and Performance of Polymeric Membranes in Water Treatment

Baghbanzadeh

Rana

Lan

et al. 2015

Separation & Purification Reviews

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“…Reverse Osmosis (RO) desalination is the leading technology for production of potable water from seawater [1][2][3][4]. However, RO seawater desalination requires effective RO feed water pretreatment in order to avoid fouling of the RO elements by suspended particulates, biological and organic materials.…”

Section: Introductionmentioning

confidence: 99%

“…Low frequency backwash is the preferred approach in UF/MF pretreatment of RO feedwater [3,8,9,20], and the addition of low frequency (~2-5 backwash cycles/hr) pulse backwash using hydraulic accumulators has been proposed for improvement of backwash efficiency [34]. It is noted that UF and MF filtration with pulse backwash, actuated with hydraulic accumulators, has been described in the patent literature [35,36].…”

Section: Introductionmentioning

confidence: 99%

Ultrafiltration with self-generated RO concentrate pulse backwash in a novel integrated seawater desalination UF-RO system

Rahardianto

Gao

et al. 2016

Journal of Membrane Science

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Ultrafiltration as a pretreatment for RO feedwater with enhanced UF backwash, which combines continuous with pulse backwash, was investigated in a novel UF-RO process integration. Direct supply of RO concentrate to the UF module served for UF backwash which was further enhanced with pulse backwash generated using bladder-type hydraulic accumulators. Model analysis of the hydraulic accumulator operation, which was validated via a series of field experiments, demonstrated a capability for accumulator charging directly from the RO concentrate stream within a period of 30-40 s. Moreover, pulse backwash over a short period (~5 s) which was added to the continuous UF backwash (directly from the RO brine stream), enabled peak UF backwash flux that was up to a factor of 4.2-4.6 higher than the normal filtration flux. The above mode of UF operation with multiple consecutive backwash pulses was found to be more effective than with a single pulse, while inline coagulation further increased the UF performance. Relatively long-term field operation (over eight days where) of the UF-RO system with self-adaptive triggering of UF backwash, whereby the number of consecutive pulses increased when a higher membrane fouling resistance was encountered, was highly effective enabling stable UF operation over a wider range of water quality conditions and without the need for chemical cleaning. These encouraging results suggest that direct UF-RO integration with enhanced pulse UF backwash is an effective approach for dead-end UF filtration without sacrificing water productivity.

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“…Al tener el diámetro de poro más pequeño, esta membrana logrará una mejor retención de las partículas que provocan el ensuciamiento de las membranas. Ambas membranas logran obtener una corriente de agua con un SDI menor de 5, característica que es recomendable que cumplan las aguas que van a ser sometidas a un tratamiento de nanofiltración [172] (ver también Anexo III), ya que a SDI superiores pueden aparecer problemas de "fouling" en dichas membranas. Sin embargo, el SDI obtenido con la membrana KLEANSEP TM 0,1 µm (SDI = 4,8) está muy próximo a este límite.…”

Section: Sdi "Silt Density Index" De Las Aguas Microfiltradasunclassified

Aplicaciones estratégicas de la Nanofiltración para el tratamiento de las aguas en la industria cerámica

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Cayetano²

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Advances in water treatment by microfiltration, ultrafiltration, and nanofiltration

Cited by 47 publications

References 86 publications

Effects of Inorganic Nano-Additives on Properties and Performance of Polymeric Membranes in Water Treatment

Effects of Inorganic Nano-Additives on Properties and Performance of Polymeric Membranes in Water Treatment

Ultrafiltration with self-generated RO concentrate pulse backwash in a novel integrated seawater desalination UF-RO system

Aplicaciones estratégicas de la Nanofiltración para el tratamiento de las aguas en la industria cerámica

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