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Development of ultrafiltration of membrane from "Nata de coco" (Bacterial cellulosa) for the decolorization of melanoidin / by Ma. Antoneth T. Liveta, Maurine R. Quiñones ... [et al.].

By:

Liveta, Ma. Antoneth T [author]

Contributor(s):

Material type: Text

TextLanguage: English Publication details: Indang, Cavite : Cavite State University- Main Campus, 2000.Description: xv, 43 pages : illustrations ; 28 cmContent type:

text

Media type:

unmediated

Carrier type:

volume

Subject(s):

DDC classification:

634.61 L75

Online resources:

Click here to view thesis abstract and table of contents

Production credits:

Science High School, College of Education (CED)

Abstract: LIVETA, MA. ANTONETH T.; QUINONES, MAURIENE R. ; RORALDO, JAYDEE JANE 0. Applied Research III (General Science Curriculum), Cavite State University, Indang, Cavite, “Development of Ultrafiltration Membranes from Nata de Coco (Bacterial Cellulose) for the Decolorization of Melanoidin”. Adviser: Prof. Gliceria L. Masicap Prof. Dulce L. Ramos Ultrafiltration membranes were prepared from Nata de coco (bacterial cellulose) and were assessed in the decolorization of melanoidin, the dark brown pigment produced by distilleries, that is a major color pollutant in water. Acetylation with bacterial cellulose was carried out by using acetic anhydride, acetic acid and sulfuric acid as acetylating agent, solvent and catalyst, respectively. Different concentrations of cellulose acetate membranes were prepared via phase-inversion technique using dimethylformamide as solvent. The membranes were characterized in terms of thickness, flux, molecular weight cut-off and pore size. Ultrafiltration experiment revealed 60% decolorization of melanoidin using 25% cellulose acetate at a rate of 22.42 + 3.7 liter per square meter-hour (L/m2hr), Lower color reduction were observed for membranes of polymer concentrations.

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Holdings ( 1 )
Title notes ( 5 )

Holdings
Item type	Current library	Collection	Call number	Materials specified	Status	Notes	Date due	Barcode
Theses / Manuscripts	Ladislao N. Diwa Memorial Library Theses Section	Non-fiction	634.61 L75 2000 (Browse shelf(Opens below))		Room use only	R-338		00000825

Applied Research IV (Agri-Science Curriculum) Cavite State University.

Includes bibliographical references.

Science High School, College of Education (CED)

LIVETA, MA. ANTONETH T.; QUINONES, MAURIENE R. ; RORALDO, JAYDEE JANE 0. Applied Research III (General Science Curriculum), Cavite State University, Indang, Cavite, “Development of Ultrafiltration Membranes from Nata de Coco (Bacterial Cellulose) for the Decolorization of Melanoidin”. Adviser: Prof. Gliceria L. Masicap Prof. Dulce L. Ramos

Ultrafiltration membranes were prepared from Nata de coco (bacterial cellulose) and were assessed in the decolorization of melanoidin, the dark brown pigment produced by distilleries, that is a major color pollutant in water.

Acetylation with bacterial cellulose was carried out by using acetic anhydride, acetic acid and sulfuric acid as acetylating agent, solvent and catalyst, respectively. Different concentrations of cellulose acetate membranes were prepared via phase-inversion technique using dimethylformamide as solvent. The membranes were characterized in terms of thickness, flux, molecular weight cut-off and pore size.

Ultrafiltration experiment revealed 60% decolorization of melanoidin using 25% cellulose acetate at a rate of 22.42 + 3.7 liter per square meter-hour (L/m2hr), Lower color reduction were observed for membranes of polymer concentrations.

Submitted to the University Library R-338