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Osmotic energy harvesting from produced water and boiler blowdown water by sulfonated Poly(ether ether ketone)-based mixed matrix membranes
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DOI：10.1016/j.advmem.2025.100180.png)
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Abstract
En 中文
The salinity gradient between produced water and boiler blowdown water-both significant waste streams in the petroleum industry-represents an emerging, clean, and sustainable energy source. This energy can be directly converted to electricity through reverse electrodialysis. In this study, we developed a series of sulfonated polyether ether ketone (SPEEK)/UiO-66-SO3H mixed matrix membranes specifically tailored for osmotic energy harvesting from these industrial effluents. The incorporation of UiO-66-SO3H nanoparticles into the SPEEK matrix significantly enhanced ion permeance, which can be attributed to the well-defined and appropriately sized pore structure of UiO-66-SO3H. When exploiting the salinity gradient between actual samples of produced water and boiler blowdown water, the membranes containing 20 wt% UiO-66-SO3H achieved a maximum power density of 5.3 W m-2 at an operational temperature of 60 degrees C. More importantly, these membranes demonstrated high stability during prolonged operational testing, highlighting their potential for sustainable and efficient energy generation from waste streams in the petroleum industry.
Keywords:
Osmotic energy conversion
Reverse electrodialysis
Petroleum waste streams
Mixed matrix membranes
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A
IF:
9.5
Papers:
16
Citations:
513