Evaluation of Sugarcane Bagasse as Bio Adsorbent In Textile Wastewater Treatment
No Thumbnail Available
Date
2018-07
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
AAU
Abstract
This thesis was conducted for evaluation of sugarcane bagasse as bio adsorbent for removing of
textile wastewater colour. The sugarcane bagasse was soaked in hydrochloric acid solution for
twenty four hours and finally the sugarcane bagasse was dried in oven to remove moisture. The
sugarcane bagasse was characterized according ASTM method for moisture content and ash
content as well as according ISO method for volatile matter. The experimental result obtained
were 29% for moisture content, 4.2% for ash content and 83% for volatile matter. FTIR analysis
of sugarcane bagasse was carried out and the experimental result indicates that the presence of
different functional groups on the surface of sugarcane bagasse before and after adsorption. In
addition to this XRD analysis of sugarcane bagasse was conducted. The higher peak of XRD
analysis indicates crystalline cellulose region and the lower peak indicates amorphous structure.
The raw textile wastewater was characterized according APHA method for BOD, COD and TDS
before and after adsorption as well as pH before adsorption and the results were for BOD it
ranges from 48 mg/L – 163 mg/L before adsorption and from 20 mg/L – 83 mg/L after
adsorption and for COD 925 mg/L before adsorption and 50 mg/L after adsorption as well as
TDS 10,000 mg/L before adsorption and 8400 mg/L after adsorption. Eventually the pH value
before adsorption was 9.65. Adsorption was conducted using synthetic azo dye and textile
wastewater at the factors of concentration, Adsorbent, pH and contact time and the higher
colour removal was achieved at optimum value of concentration 52.5 mg/L, dose of adsorbent
2.5-gram, pH 6.5 and time 75 minute for both adsorption. Based on ANOVA analysis on
adsorption of azo dye and textile wastewater on to bagasse, factors of concentration, pH, and
time were significant. Kinetic study was carried out for adsorption of azo dye and textile
wastewater and pseudo first order model was well fitted for both adsorptions. In addition to this
adsorption isotherm was conducted for azo dye and textile wastewater adsorption and the
Langmuir isotherm model was well fitted for both adsorptions. To conclude the comparative
analysis of azo dye and textile wastewater adsorption using sugarcane bagasse as bio-adsorbent
and the result provide that, there was a higher percentage of colour removal with azo dye
adsorption when compared with adsorption of textile wastewater and the results were 90% for
azo dye colour removal and 81% for textile wastewater colour removal.
Description
Keywords
Sugarcane bagasse, azo dye, adsorption process, textile wastewater removal