Membrane fouling and long-term performance of seawater-driven forward osmosis for enrichment of nutrients in treated municipal wastewater

Xue, Wenchao; Yamamoto, Kazuo; Tobino, Tomohiro

doi:10.1016/j.memsci.2015.11.009

Cited by 63 publications

(28 citation statements)

References 35 publications

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“…Additionally, the EDS analysis revealed the presence of N and P on the fouled AIM and HTI membranes, which suggested biofouling and the presence of extracellular polymeric substances (EPS). This is in agreement with the results of Zhang et al [46] and Xue et al [47]. In addition, more bacteria were present on the AIM membranes than on the HTI membranes after drainage due to bacterial growth on/in the MS.…”

supporting

confidence: 93%

Influences of mechanical pretreatment on the non-biological treatment of municipal wastewater by forward osmosis

Hey

Zarebska

Bajraktari

et al. 2016

Environmental Technology

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supporting

confidence: 93%

Influences of mechanical pretreatment on the non-biological treatment of municipal wastewater by forward osmosis

Hey

Zarebska

Bajraktari

et al. 2016

Environmental Technology

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“…In our previous work 24 , LDH nanoparticles were blended in the PSf substrate of a TFN membrane to increase porosity, hydrophilicity, mechanical strengths, and thermal stability. In a recent review, Elimelech's group 38 proposed that for next generation TFC membranes, it is also important to increase the selectivity, not only the water permeability. In a recent review, Elimelech's group 38 proposed that for next generation TFC membranes, it is also important to increase the selectivity, not only the water permeability.…”

Section: Introductionmentioning

confidence: 99%

Layered double hydroxide/graphene oxide hybrid incorporated polysulfone substrate for thin-film nanocomposite forward osmosis membranes

Liang

Zhou

et al. 2016

RSC Adv.

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Layered double hydroxide/graphene oxide (LDH/GO) hybrid as nanofillers for polysulfone (PSf) substrate for the fabrication of thin film nanocomposite (TFN) forward osmosis (FO) membrane was reported. The influence of the incorporation of LDH/GO hybrid on the physicochemical properties of the PSf substrate and systematically investigated the resultant TFN membrane performance. The results demonstrated that adding LDH/GO hybrid enhanced the PSf substrate with increased porosity, hydrophilicity, surface pore diameter, and mechanical strengths.Consequently, all the TFN membranes obtained increased water permeability and salt rejection as compared to the thin film composite (TFC) membrane prepared on a conventional PSf substrate. Using 1 M NaCl as the draw solution and DI water as feed solution, the water flux of the TFN membrane with a 2 wt% LDH/GO dosage as high as 23.6 L m -2 h -1 under the pressure retarded osmosis (PRO) mode. Moreover, compared to conventional TFC membrane, the TFN membrane with a 2 wt% LDH/GO also showed a very low reverse salt flux (6.2 g m -2 h -1 ). The improvement in FO performance was attributed to the lower structure parameter of modified PSf substrate and the reduction of internal concentration polarization. This study suggests LDH/GO hybrid is an effective additive for modifying PSf substrate for the development of FO membranes. nanomaterials (e.g. zeolite and layered double hydroxides (LDHs)) 21-24 have been used in the fabrication of TFC FO membranes. For a FO membrane desalination process, these inorganic nanomaterials also help to enhance the permeability, mechanical and thermal stability of polymeric membranes. Emadzadeh et al. 14 synthesized thin-film nanocomposite (TFN) membranes based on TiO 2 -PSf support layers for FO desalination. The results revealed that both the hydrophilicity and porosity of the substrate were increased by the addition of TiO 2 nanoparticles.Similarly, SiO 2 nanoparticles have also been demonstrated to be a good modifying agent to enhance water permeability, increase the overall porosity, and reduce ICP of the PSf substrate 1 . It is believed that the metal oxide nanoparticles could provide more water channels and/or high porosity.Carbon-based nanomaterials stand for another type of promising materials that can heighten the performance of polymeric membranes in desalination application, with an upward trend in research over recent years 13 . For instance, graphene oxide (GO) which contains abundant oxygen functional groups (carboxyl, epoxy and hydroxyl groups) and one atomic thickness has been reported to offer high chemical stability, strong hydrophilicity, and excellent antifouling properties 20, 25-27 . A single-layer graphene membrane exhibited quick water transportation ability and a nearly 100% salt-rejection rate theoretically 28, 29 . Qin et al. 30 incorporated GO in the support layer of a TFC membrane which obtained higher salt removals (>99.7% for multivalent ions). Park et al. 20 fabricated a PSf/GO composite membrane support layer, which res...

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“…In recent years, FO has attracted increasing interest in desalination [1][2][3] , wastewater treatment [4][5] , osmotic membrane bioreactors [6][7] , fertilizers [8][9] and power generation [10][11] , as a potential low-energy and more environmentally friendly technology 12 . Forward osmosis (FO) is a natural process that drives water molecules across a semi-permeable membrane from the feed solution (with a low osmotic pressure) to the draw solution (with a high osmotic pressure).…”

Section: Introductionmentioning

confidence: 99%

“…Apart from the membrane structural stability, membrane chlorine resistance is also a bottleneck for TFC-PA membrane applications. This is because membrane fouling is inevitable in the FO process, for example, in biological fouling it is the main cause of decreasing membrane performance 5,13,19 .Therefore, membrane cleaning with oxidizing agents to control membrane biofouling is also needed in FO applications. However, the antioxidant ability of the conventional PA layer is poor, and its polymer chain structure is easily degraded by active chlorine and consequently bring a significantly reduced membrane separation performance [20][21] .…”

Section: Introductionmentioning

confidence: 99%

Dopamine Incorporated Forward Osmosis Membranes with High Structural Stability and Chlorine Resistance

Wang

Fang²,

Xie³

et al. 2018

Preprint

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The degradation and detachment of the polyamide (PA) layer in thin-film composite (TFC) membranes due to chlorine based chemical cleaning and material difference of PA layer and substrate are two major bottlenecks of forward osmosis (FO) technology. In this study, a new type of FO membranes were prepared by controlling self-polymerization of dopamine (DA) in the aqueous phase and the reaction with trimesoyl chloride (TMC) during interfacial polymerization (IP) process. These membranes were characterized by attenuated total reflection Fourier transform infrared (ATR-FTIR), X-ray photoelectron spectroscopy (XPS), field-emission scanning electron microscopy (FESEM) and water contact angle measurements. The influence of synthesis parameters such as pH of the aqueous phase, reaction time, temperature, and monomer concentrations were systematically investigated. The optimized membrane showed enhanced structure stability in ethanol (7.1 times higher) and chlorine resistance (72.3 times higher) than the conventional Piperazine(PIP)/TMC membrane due to（poly-dopamine）PDA bio-adhesion and polyester groups in the membrane structure. In general, DA/TMC membranes could be an effective strategy to fabricate high-performance FO membranes with excellent structural stability and chlorine resistance.

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Membrane fouling and long-term performance of seawater-driven forward osmosis for enrichment of nutrients in treated municipal wastewater

Cited by 63 publications

References 35 publications

Influences of mechanical pretreatment on the non-biological treatment of municipal wastewater by forward osmosis

Influences of mechanical pretreatment on the non-biological treatment of municipal wastewater by forward osmosis

Layered double hydroxide/graphene oxide hybrid incorporated polysulfone substrate for thin-film nanocomposite forward osmosis membranes

Dopamine Incorporated Forward Osmosis Membranes with High Structural Stability and Chlorine Resistance

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