Preparation and characterization of improved polysulfone ultrafiltration membrane for concentrating waste fish broths

Date

10-1988

Degree

Bachelor of Science in Chemistry

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Ernesto J Del Rosario

Abstract

PEREZ, WILLIE J., College of Arts and Sciences, University of the Philippines at Los Banos, September 12, 1988. Preparation of Improved Polysulfone Ultrafiltration Membranes for Concentrating Waste-Fish Broths.

Adviser: Dr. Ernesto J. del Rosario

Three sets .of polysulfone ultrafiltration (OF) membranes were prepared containing the following proportions (w/w) of polysulfone (PS) and N,N-dimethyl acetamide (DMAc): 12/88, 15/85 and 18/82 corresponding to membrane sets A, B and C, respectively. Poly-vinylpyrrolidone (PVP) was added to constitute 10% of PS. The pinhole-free membranes were characterized in terms of uniformity of thickness, water flux, molecular weight (MW) cut-off, pore size and ratio of pore surface area to membrane area (Ap/Am). Membrane sets B and C were used in the OF of waste sardine and tuna broths.

The membrane water flux was found to decrease as the PS con-centration was increased from 12% (Set A) to 15% (Set B). Membrane sets B and C had approximately the same water flux. Scanning electron microscopy (SEM) of the membrane's bottom (glass side) surface showed that the membrane pore diameter was similar for these two sets of membranes. SEM also revealed that a more asymmetric membrane structure was obtained for sets B and C membranes compared to Set A membrane.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

LG 993.5 1988 C4 P47

Document Type

Thesis

This document is currently not available here.

Share

COinS