Continuous adsorption of methylene blue dye on the maize stem ground tissue
Continuous adsorption of methylene blue from aqueous solutions onto maize stem ground tissue in column mode was investigated. The study encompassed the effects of important parameters such as flow rate, initial concentration of methylene blue, and bed depth on methylene blue removal from mo...
Main Authors: | , , , , |
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Format: | Article |
Language: | English |
Published: |
Faculty of Technology, Novi Sad
2017-01-01
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Series: | Acta Periodica Technologica |
Subjects: | |
Online Access: | http://www.doiserbia.nb.rs/img/doi/1450-7188/2017/1450-71881748127K.pdf |
Summary: | Continuous adsorption of methylene blue from aqueous solutions onto maize
stem ground tissue in column mode was investigated. The study encompassed the
effects of important parameters such as flow rate, initial concentration of
methylene blue, and bed depth on methylene blue removal from model solutions.
The maximum adsorption capacity of the maize stem was 45.9 mg/g at the
initial methylene blue concentration of 20 mg/L, bed height of 6.5 cm and
flow rate of 8 mL/min. It was found that the breakthrough time for reaching
saturation increased with a decrease in the flow rate, and also occurred
earlier for a higher influent concentration. The breakthrough times increased
with the bed depth, thus allowing a larger volume to be treated. The
Adams-Bohart, Yoon-Nelson, Clark and artificial neural network models were
used to predict the breakthrough curves. These models gave excellent
approximations of the experimental behavior.[Project of the Serbian Ministry
of Education, Science and Technological Development, Grant no. 172025] |
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ISSN: | 1450-7188 2406-095X |