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Investigation of pilot scale manufacturing of polysulfone (PSf) membranes by wet phase inversion method

Güçlü, Serkan and Sharabati, Jalal-Al-Din and Saffarimiandoab, Farzin and Ağtaş, Meltem and İmer, Derya Y. and Paşaoğlu, Mehmet E. and Menceloğlu, Yusuf Z. and Ünal, Serkan and Koyuncu, İsmail (2018) Investigation of pilot scale manufacturing of polysulfone (PSf) membranes by wet phase inversion method. Desalination and Water Treatment, 131 . pp. 66-74. ISSN 1944-3994 (Print) 1944-3986 (Online)

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Official URL: http://dx.doi.org/10.5004/dwt.2018.23012

Abstract

Membranes are used as a support layer for the fabrication of thin film composite membranes. Sup- port layer properties can affect many performance parameters of TFC membranes such as flux, rejection, morphology and stability against pressure. Although studies in lab scale fabrication exist, investigation the pilot scale polysulfone membrane fabrication has not been done. In this study, opti- mization of polysulfone support membranes fabrication was conducted in pilot scale. Coagulation bath temperature; casting speed and solution content were selected as main parameters for the opti- mization. Membrane surface properties were investigated in details with SEM and pore size dis- tribution. Membrane performance were determined with permeability experiments. Differences in pilot scale and lab scale membrane manufacturing were observed and compared with literature. On the contrary to literature it was found that, coagulation bath temperature has exact opposite effect in pilot scale membrane formation compared to lab scale studies. 10°C drop (from 25°C to 15°C) in coagulation bath temperature decreased mean pore size of membranes from 27 nm to 8 nm and per- meability from 464 l/m2h to 100 l/m2h while everything else was kept constant.

Item Type:Article
Uncontrolled Keywords:Pilot scale membrane production; Sponge-like structure; Non-solvent induced phase separation; RO support layer fabrication; Polysulfone membrane
Subjects:Q Science > QD Chemistry
T Technology > TD Environmental technology. Sanitary engineering
ID Code:37653
Deposited By:Serkan Ünal
Deposited On:21 Aug 2019 22:29
Last Modified:21 Aug 2019 22:29

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