Produced water treatment by nanofiltration and reverse osmosis membranes

Mondal, Subrata; Wickramasinghe, S. Ranil

doi:10.1016/j.memsci.2008.05.039

Cited by 385 publications

(197 citation statements)

References 25 publications

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“…In Australia, CSG produced water is mainly composed of sodium, bicarbonate and chloride [1,2]. Due to potential impacts of directly discharging CSG produced water on local ecological systems, there is a strong need to develop sustainable treatment process for its environmental safety [1,3,4,5]. CSG produced water requires advanced technologies for treatment such as RO because the salt removal from CSG produced water is a crucial point [4,6].…”

Section: Introductionmentioning

confidence: 99%

“…Due to potential impacts of directly discharging CSG produced water on local ecological systems, there is a strong need to develop sustainable treatment process for its environmental safety [1,3,4,5]. CSG produced water requires advanced technologies for treatment such as RO because the salt removal from CSG produced water is a crucial point [4,6]. Treating CSG produced water with RO leads to the production of more concentrated CSG produced water called brine [1].…”

Section: Introductionmentioning

confidence: 99%

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Graphene/PVDF flat-sheet membrane for the treatment of RO brine from coal seam gas produced water by air gap membrane distillation

Woo

Kim

Shim

et al. 2016

Journal of Membrane Science

123

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. (2016). Graphene/PVDF flat-sheet membrane for the treatment of RO brine from coal seam gas produced water by air gap membrane distillation. Journal of Membrane Science, 513 74-84.Graphene/PVDF flat-sheet membrane for the treatment of RO brine from coal seam gas produced water by air gap membrane distillation Keywords brine, ro, distillation, treatment, gap, membrane, sheet, flat, pvdf, graphene, air, water, produced, gas, seam AbstractBrine management of coal seam gas (CSG) produced water is a significant concern for the sustainable production of CSG in Australia. Membrane distillation (MD) has shown the potential to further reduce the volume of CSG reverse osmosis (RO) brine. However, despite its potential, the lack 2 of appropriate MD membranes limits its industrial use. Therefore, this study was aimed on the

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Graphene/PVDF flat-sheet membrane for the treatment of RO brine from coal seam gas produced water by air gap membrane distillation

Woo

Kim

Shim

et al. 2016

Journal of Membrane Science

123

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“…However, RO can only achieve 75-80% water recovery [2,[6][7][8]. In Australia, where reinjection of CSG RO brine to depleted coal seams is generally not permitted, brine ponds have to be used as a temporary solution.…”

Section: Introductionmentioning

confidence: 99%

Scaling control during membrane distillation of coal seam gas reverse osmosis brine

Duong

Gray

Duke

et al. 2015

Journal of Membrane Science

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We systematically assess the efficiency of chemical cleaning and report a simple but elegant approach to control scaling during membrane distillation (MD) of brine from reverse osmosis (RO) treatment of coal seam gas (CSG) produced water. Results reported here show that increased feed water salinity and the permeation of CO2 from the feed solution resulted in only a small and gradual decrease in water flux. On the other hand, the precipitation of sparingly soluble salts on the membrane at high water recovery (>70%) led to a significant flux decline. Among the three chemical cleaning agents investigated, a reverse osmosis scale cleaning agent (denoted as MC3) was the most effective at restoring the water flux; however, MC3 cleaning was not able to completely remove scale deposits from the membrane and restore its surface hydrophobicity to the original value because of the complexation of scalants with CSG RO brine. The remaining scalants (i.e., silicates) reduced the membrane surface hydrophobicity and could possibly enhance concentration polarisation and act as seeding for further scale formation. Thus, a gradual decrease in MD performance with respect to both water flux and salt leakage was observed after each MC3 cleaning cycle. It was noted that the chemical cleaning agents themselves did not alter the hydrophobicity of the membrane; thus, the gradual decline in MD performance was attributed to the remaining scale deposits on the membrane after each cleaning cycle. Results reported here highlight the need to prevent membrane scaling and only use chemical cleaning as the last resort during MD treatment of CSG RO brine. Moreover, membrane scaling could be prevented by reducing concentration polarisation via limiting feed temperature and thus water flux. MD treatment of CSG RO brine with up to 80% water recovery without any observable membrane scaling was achieved at the feed temperature and the water flux of 35°C and 10L/m 2 h, respectively. AbstractWe systematically assess the efficiency of chemical cleaning and report a simple but elegant approach to control scaling during membrane distillation (MD) of brine from reverse osmosis (RO) treatment of coal seam gas (CSG) produced water. Results reported here show that increased feed water salinity and the permeation of CO 2 from the feed solution resulted in only a small and gradual decrease in water flux. On the other hand, the precipitation of sparingly soluble salts on the membrane at high water recovery (>70%) led to a significant flux decline. Among the three chemical cleaning agents investigated, a reverse osmosis scale cleaning agent (denoted as MC3) was the most effective at restoring the water flux; however, MC3 cleaning was not able to completely remove scale deposits from the membrane and restore its surface hydrophobicity to the original value because of the complexation of scalants with CSG RO brine. The remaining scalants (i.e., silicates) reduced the membrane surface hydrophobicity and could possibly enhance concentration polarisation and ...

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“…At present, PW is typically disposed in injection wells as waste or for pressure maintenance of the reservoir. Treatment of this wastewater could improve the economic viability of these oil and gas fields and lead to a new source of water for beneficial use [5]. Several techniques to treat PW are already deployed.…”

Section: Introductionmentioning

confidence: 99%

Dynamic cross-flow filtration of oilfield produced water by rotating ceramic filter discs

Ebrahimi

Schmitz

Kerker

et al. 2013

Desalination and Water Treatment

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Produced water treatment by nanofiltration and reverse osmosis membranes

Cited by 385 publications

References 25 publications

Graphene/PVDF flat-sheet membrane for the treatment of RO brine from coal seam gas produced water by air gap membrane distillation

Graphene/PVDF flat-sheet membrane for the treatment of RO brine from coal seam gas produced water by air gap membrane distillation

Scaling control during membrane distillation of coal seam gas reverse osmosis brine

Dynamic cross-flow filtration of oilfield produced water by rotating ceramic filter discs

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