Synthesis and characterization of polyamide membrane for the separation of acetic acid from water using RO process

Mirfarah, H ; Sharif University of Technology | 2017

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  1. Type of Document: Article
  2. DOI: 10.12989/mwt.2017.8.4.323
  3. Publisher: Techno Press , 2017
  4. Abstract:
  5. 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 25°C. 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 75°C are the optimum conditions. Moreover, the permeate flux was and acetic acid rejection was about 43% at these conditions. © 2017 Techno-Press, Ltd
  6. Keywords:
  7. Acetic acid rejection ; Interfacial polymerization ; Reverse osmosis ; Thin film composite ; Acetic acid ; Curing ; Organic acids ; Polymerization ; Reverse osmosis ; Separation ; Thin films ; Interfacial polymerization ; Polyamide membranes ; Polyamide thin films ; Polysulfone supports ; Separation mechanism ; Synthesis and characterizations ; Synthesis conditions ; Thin film composites ; pH
  8. Source: Membrane Water Treatment ; Volume 8, Issue 4 , 2017 , Pages 323-336 ; 20058624 (ISSN)
  9. URL: http://koreascience.or.kr/article/ArticleFullRecord.jsp?cn=TPTPIQ_2017_v8n4_323