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Forward osmosis membrane filtration for microalgae harvesting cultivated in sewage effluent
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  • Journal title : Environmental Engineering Research
  • Volume 20, Issue 1,  2015, pp.99-104
  • Publisher : Korean Society of Environmental Engineering
  • DOI : 10.4491/eer.2015.005
 Title & Authors
Forward osmosis membrane filtration for microalgae harvesting cultivated in sewage effluent
Kim, Su-Bin; Paudel, Sachin; Seo, Gyu Tae;
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 Abstract
The purpose of this study is to evaluate the performance of forward osmosis (FO) system for harvesting microalgae cultivated in secondary sewage effluent. Microalgae species used in this study were chlorella sp. ADE4. The drawing agents used for forward osmosis system were seawater and concentrate of sea water reverse osmosis (SWRO) system. Chlorella sp. ADE4 cultured in secondary sewage effluent illustrated moderate efficiency in removal of total nitrogen (TN) (68%) and superior performance in total phosphorus (TP) removal (99%). Comparison of seawater and SWRO concentrate as drawing agent were made in FO membrane separation of the microalgae. The result from this study depicts that SWRO concentrate is strong drawing agent in FO membrane system providing an average dewatering rate of compared to seawater with average dewatering of . Results obtained from this study indicated that FO system could be viable option for harvesting the microalgae for further biodiesel production. SWRO concentrate as a drawing agent could be very important finding in field of membrane technology for disposal of SWRO concentrate.
 Keywords
Draw solution;Forward osmosis membrane;Microalgae;Seawater concentrate;Sewage effluent;
 Language
English
 Cited by
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A statistics-based forward osmosis membrane characterization method without pressurized reverse osmosis experiment, Desalination, 2016  crossref(new windwow)
2.
An optimal design approach of forward osmosis and reverse osmosis hybrid process for seawater desalination, Desalination and Water Treatment, 2016, 57, 55, 26612  crossref(new windwow)
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