Design of novel ultrafiltration systems based on robust polyphenylsulfone hollow fiber membranes for treatment of contaminated surface water

Praneeth, K, Bhargava, S, Tardio, J and Sridhar, S 2014, 'Design of novel ultrafiltration systems based on robust polyphenylsulfone hollow fiber membranes for treatment of contaminated surface water', Chemical Engineering Journal, vol. 248, pp. 297-306.


Document type: Journal Article
Collection: Journal Articles

Title Design of novel ultrafiltration systems based on robust polyphenylsulfone hollow fiber membranes for treatment of contaminated surface water
Author(s) Praneeth, K
Bhargava, S
Tardio, J
Sridhar, S
Year 2014
Journal name Chemical Engineering Journal
Volume number 248
Start page 297
End page 306
Total pages 10
Publisher Elsevier BV
Abstract This work focuses on development of robust but economical hollow fiber ultrafiltration systems that could be operated with or without electric power to treat polluted surface water. A diverse experimental study was carried out to synthesize novel hollow fiber membranes based on polyphenylsulfone (PPSu) and polyvinylidenefluoride (PVDF) fibers for surface water treatment. A manual hollow fiber spinning machine incorporated with an inexpensive spinneret was designed to fabricate hollow fibers from dope compositions of 20wt% PVDF in DMAc and 20wt% PPSu in NMP by phase inversion technique. Isothermal ternary phase diagrams of PVDF or PPSu/solvent/non-solvent systems were established using three different solvents such as N,N-dimethylacetamide (DMAc), 1-methyl-2-pyrrolidinone (NMP) and N,N-dimethylformamide (DMF) with water being the non-solvent. The indigenous fibers had an approximate outer diameter of 1.5mm and the wall thickness of 0.25mm and were housed in inexpensive PVC and UPVC tubes using epoxy resin and nylon end connectors. PVDF hollow fibers (HF) exhibited 94.8% turbidity rejection, whereas PPSu fibers exhibited 91% rejection with 5 log E-Coliform reduction from surface water at a low hydraulic pressure of 1bar with high flux values of 125Lm-2h-1 and 73Lm-2h-1, respectively at a substantial water recovery of 80%. A water purification device capable of generating 25Lh-1 purified water flow at an overhead tank pressure of 0.5bar was designed and fabricated for households along with a hand pump operated submerged ultrafiltration (UF) system for treatment of surface water in flood prone regions. Detailed economic estimation of the indigenously designed water purification device for household purpose is presented which shows a low operating cost of 0.02 US $ per liter of purified water obtained.
Subject Chemical Engineering Design
Keyword(s) Flux
Hand operated ultrafiltration system
PPSu hollow fiber membrane
Rejection
Surface water
DOI - identifier 10.1016/j.cej.2014.02.087
Copyright notice © 2014 Elsevier B.V. All rights reserved.
ISSN 1385-8947
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 11 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 5 times in Scopus Article | Citations
Altmetric details:
Access Statistics: 293 Abstract Views  -  Detailed Statistics
Created: Tue, 18 Nov 2014, 08:24:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us