Membrane and Water Treatment

  • 제2권4호
  • /
  • Pages.239-250
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  • 2011
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  • 2005-8624(pISSN)
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  • 2092-7037(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Renewable energy powered membrane systems: inorganic contaminant removal from Australian groundwaters

  • Richards, Laura A. (School of Engineering and Physical Sciences, Heriot-Watt University) ;
  • Richards, Bryce S. (School of Engineering and Physical Sciences, Heriot-Watt University) ;
  • Schafer, Andrea I. (School of Engineering, The University of Edinburgh)
  • 투고 : 2011.06.28
  • 심사 : 2011.09.12
  • 발행 : 2011.10.25
⟨ 이전 논문 다음 논문 ⟩

초록

A photovoltaic powered ultrafiltration and reverse osmosis system was tested with a number of natural groundwaters in Australia. The objective of this study was to compare system performance at six remote field locations by assessing the impact of water composition and fluctuating energy on inorganic contaminant removal using a BW30-4040 membrane. Solar irradiance directly affected pressure and flow. Groundwater characteristics (including TDS, salts, heavy metals, and pH), impacted other performance parameters such as retention, specific energy consumption and flux. During continual system operation, retention of ions such as $Ca^{2+}$ and $Mg^{2+}$ was high (> 95%) with each groundwater which can be attributed to steric exclusion. The retention of smaller ions such as $NO_3{^-}$ was affected by weather conditions and groundwater composition, as convection/diffusion dominate retention. When solar irradiance was insufficient or fluctuations too great for system operation, performance deteriorated and retention dropped significantly (< 30% at Ti Tree). Groundwater pH affected flux and retention of smaller ions ($NO_3{^-}$ and $F^-$) because charge repulsion increases with pH. The results highlight variations in system performance (ion retention, flux, specific energy consumption) with real solar irradiance, groundwater composition, and pH conditions.

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참고문헌

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피인용 문헌

  1. Membrane processes and renewable energies vol.43, 2015, https://doi.org/10.1016/j.rser.2014.11.091
  2. Renewable energy powered membrane technology: Impact of solar irradiance fluctuations on performance of a brackish water reverse osmosis system vol.156, 2015, https://doi.org/10.1016/j.seppur.2015.10.025
  3. Treatment of ground waters in a hollow-fibre liquid membrane contactor for removal of ions vol.4, pp.2, 2013, https://doi.org/10.12989/mwt.2013.4.2.095