Page 77 - Abstract book - TJSSF-2020

Thailand – Japan Student Science Fair 2020 (TJ-SSF 2020)
“Seeding Innovations through Fostering Thailand – Japan Youth Friendship”

Dye wastewater treatment
based banana fiber. cellulose aerogel

Kreeta Chanakarn , Natdanai Prachnakorn
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Advisors: Piyada Guedduaythong , Sujittra Poorahong
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Princess Chulabhorn Science High School Nakhon Si Thammarat
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Walailak University
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Abstract

Dye wastewater treatment with cellulose aerogel from banana fiber was an innovation created with the
objectives to study the dye adsorption properties of banana fiber and produce a cellulose aerogel from
banana fiber that can remove the dye contaminated in water and also to study the efficiency of banana
fiber and cellulose aerogel in the reducing amount of dye contaminated in water. The optimum
adsorption conditions were studied in term of the adsorbent amount (0.100 to 0.300 g), initial
concentration of methylene blue (5.00-100 mg/L) and adsorption time (5-90 min). The Ultraviolet-
Visible spectrophotometry technique was used for measuring the absorbance of methylene blue
solution. The study found that the best adsorption capacity of methylene blue dye by using banana fibers
was 0.500 mg/g. Furthermore, the complete adsorption occurred within 60 minute when using 0.200 g
of the adsorbent (banana fiber). The isotherm of methylene blue adsorption was consistent with
Freundlich isotherm (R = 0.9845). From the study, the 1/n value was equal to 0.8191 which was
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between 0-1, this meant that banana fiber was the single or multiple layer adsorbents. When study the
adsorption efficiency to the methylene blue dye between the banana fiber and the cellulose aerogel, it
was found that the cellulose aerogel provided adsorption capacity (5.40 mg/g) but banana fiber provided
adsorption capacity (0.500 mg/g). In which kinetic of Methylene blue adsorption by cellulose aerogel
conforms the pseudo-second order kinetic model.

Keywords: dissolved dye , cellulose aerogel , banana fiber , adsorption kinetic , wastewater treatment
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