Feasibility Study of Advanced NOM-Reduction by Hollow Fiber Ultrafiltration and Nanofiltration at a Swedish Surface Water Treatment Plant

Lidén, Angelica; Persson, Kenneth M

doi:10.3390/w8040150

Cited by 16 publications

(9 citation statements)

References 39 publications

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“…Conventional membrane technologies such as ultrafiltration membrane (UF), nanofiltration membrane (NF), and reverse osmosis membrane (RO) have been widely used in various fields such as industrial water treatment and municipal sewage treatment [ 15 , 16 , 17 ]. Traditional membrane separation technologies such as UF, NF, and RO are driven by external pressure.…”

Section: Introductionmentioning

confidence: 99%

Effects of Different Draw Solutions on Biogas Slurry Concentration in Forward Osmosis Membrane: Performance and Membrane Fouling

Xie

Yin

et al. 2022

Membranes

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Biogas slurry poses a severe challenge to the sustainable management of livestock farms. The technology of the forward osmosis (FO) membrane has a good application prospect in the field of biogas slurry concentration. Further research is needed to verify the effects of different draw solutions on FO membranes in biogas slurry treatment and the related membrane fouling characteristics. In this study, three different draw solutions were selected to evaluate the performance of FO membranes for biogas slurry concentration. Membrane fouling was investigated by characterization after FO membrane treatment to identify fouling contaminants. The result showed that FO membrane treatment can realize the concentration of biogas slurry and MgCl2 as the draw solution has the best effect on the concentration of biogas slurry. The different draw solutions all contributed to the efficient retention of most organics and TP while each treatment was ineffective at retaining nitrogen. The cake layer that appeared after the biogas slurry was concentrated covered the surface of the FO membrane. Some functional groups were detected on the surface after membrane fouling, such as C–O and C=C. Moreover, the C element accounts for 57% of the main components of the cake layer after the membrane fouling. Membrane fouling is caused by both organic fouling and inorganic fouling, of which organic fouling is the main reason. This study provides a technical reference for the high-value utilization of biogas slurry.

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Section: Introductionmentioning

confidence: 99%

Effects of Different Draw Solutions on Biogas Slurry Concentration in Forward Osmosis Membrane: Performance and Membrane Fouling

Xie

Yin

et al. 2022

Membranes

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“…The expected lifetime of regular HF NF membranes (not reinforced) is 5–7 years. With reinforcement, the higher mechanical strength should increase the useful lifetime of the membranes . The permeability and selectivity of such a composite HF membrane depends on the structure and properties of the thin‐film layer .…”

Section: Introductionmentioning

confidence: 99%

“…With reinforcement, the higher mechanical strength should increase the useful lifetime of the membranes. 17 The permeability and selectivity of such a composite HF membrane depends on the structure and properties of the thin-film layer. 18 When reinforced, HF fiber membranes can withstand hydraulic pressures typical for reverse osmosis (~12.5 MPa).…”

Section: Introductionmentioning

confidence: 99%

Reinforced thin‐film composite nanofiltration membranes: Fabrication, characterization, and performance testing

Türken

Şengür-Taşdemir

Sayinli

et al. 2019

J of Applied Polymer Sci

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Hollow‐fiber (HF) membranes have the advantage of a higher packing density compared to flat‐sheet and spiral‐wound configurations. However, the low pressure tolerance of HF membranes limits their applications in nanofiltration (NF). In this study, reinforced thin‐film composite (r‐TFC) HF NF membranes were fabricated and evaluated in tests with water containing different salts and organic matter. Reinforced polysulfone ultrafiltration membranes were used as a support for a polyamide layer prepared from piperazine and trimesoyl chloride monomers. The interfacial polymerization conditions were optimized via selection of the trimesoyl chloride reaction time that gave the highest membrane performance. A specific permeate flux of 5.1 L m–2 h–1 bar–1, an MgSO4 rejection of 69%, and an NaCl rejection of 26% at a transmembrane pressure of 6 bars were obtained with the optimized r‐TFC membranes. Performance studies with water characterized by synthetic solution demonstrated removals of the total organic carbon, ultraviolet absorbance at 254 nm, and turbidity in excess of 65, 80, and 90%, respectively. The results of this study illustrate the feasibility of manufacturing r‐TFC HFs and using them in water‐treatment applications. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 48001.

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“…Integrating with NF was, and would be a key strategy to lower the cost of current desalination processes [11]. Moreover, under different conditions, NF might be used to remove natural organic matter (NOM) [17,18], and recycle water from organized industrial zones (OIZ) [19]. Therefore, it is very important to evaluate different integrated membrane processes under certain criteria.…”

Section: Introductionmentioning

confidence: 99%

A Thermodynamical Approach for Evaluating Energy Consumption of the Nanofiltration-Crystallization Process on Selective Separation of Chloride and Sulfate

Zeng

Wang

2018

Water

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Nanofiltration (NF) coupling processes have been applied to treat high salinity wastewater in many studies. The main reason that affects the industrialization of the wastewater treatment is the high cost, which is mainly caused by the energy consumption of the entire system. Therefore, how to evaluate the energy consumption of different process configurations is an important issue. In this work, a thermodynamical approach was explained in detail, which could be used for evaluating energy consumption for pressure-driven membrane processes (e.g., NF and reverse osmosis) and osmotically driven membrane processes (e.g., forward osmosis). The coupling process configurations of NF, reverse osmosis (RO) and crystallization (Cryst) were selected to evaluate the energy consumption for high NaCl and Na 2 SO 4 concentration wastewater in this paper. Four different process configurations (NF-Cryst, RO-Cryst, RO-NF-Cryst, NF-RO-Cryst) were simulated using Aspen Plus. The processes were discussed using a thermodynamical approach with a customized NF model. The electrolyte Non-Random Two-Liquid (electrolyte-NRTL) model was employed to calculate the thermodynamic properties of the solutions. The simulation results showed that the energy consumption per cubic meter of treated water (E water ) in NF-Cryst and NF-RO-Cryst processes were lower than that of RO-Cryst and RO-NF-Cryst. When c f ,Na 2 SO 4 was low (e.g., 15 g•L −1 ), there was not much difference in energy consumption between NF-Cryst and NF-RO-Cryst processes. Moreover, the high efficiency of NF was revealed in the separation of salt and decrease in the energy consumption of the whole process.

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Feasibility Study of Advanced NOM-Reduction by Hollow Fiber Ultrafiltration and Nanofiltration at a Swedish Surface Water Treatment Plant

Cited by 16 publications

References 39 publications

Effects of Different Draw Solutions on Biogas Slurry Concentration in Forward Osmosis Membrane: Performance and Membrane Fouling

Effects of Different Draw Solutions on Biogas Slurry Concentration in Forward Osmosis Membrane: Performance and Membrane Fouling

Reinforced thin‐film composite nanofiltration membranes: Fabrication, characterization, and performance testing

A Thermodynamical Approach for Evaluating Energy Consumption of the Nanofiltration-Crystallization Process on Selective Separation of Chloride and Sulfate

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