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Membrane Water Treatment Volume 8, Number 4, July 2017 , pages 323-336 DOI: https://doi.org/10.12989/mwt.2017.8.4.323 |
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Synthesis and characterization of polyamide membrane for the separation of acetic acid from water using RO process |
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Hesam Mirfarah, Seyyed Abbas Mousavi, Seyyed Sajjad Mortazavi, Masoud Sadeghi and Dariush Bastani
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| Abstract | ||
| The main challenge in many applications of acetic acid is acid dehydration and its recovery from wastewater streams. Therefore, the performance of polyamide thin film composite is evaluated to separate acetic acid from water. To reach this goal, the formation of polyamide layer on polysulfone support membrane was investigated via interfacial polymerization (IP) of meta-phenylenediamine (MPD) in water with trimesoyl chloride (TMC) in hexane. Also, the effect of synthesis conditions, such as concentration of monomers and curing temperature on separation of acetic acid from water were investigated by reverse osmosis process. Moreover, the separation mechanism was discussed. The solute permeation was carried out under applied pressure of 5 bar at 25oC. Surface properties of TFC membrane were characterized by ATR-FTIR, SEM and AFM. The performance test indicated that 3.5 wt% of MPD, 0.35 wt% of TMC and curing temperature of 75oC are the optimum conditions. Moreover, the permeate flux was 4.3 L/(m^2 h) and acetic acid rejection was about 43% at these conditions. | ||
| Key Words | ||
| acetic acid rejection; interfacial polymerization; thin film composite; reverse osmosis | ||
| Address | ||
| Hesam Mirfarah, Seyyed Abbas Mousavi, Seyyed Sajjad Mortazavi, Masoud Sadeghi and Dariush Bastani: Chemical and Petroleum Engineering Department, Sharif University of Technology, Azadi Ave., Tehran, Iran | ||
