Color Removal of Pulp and Paper Mill Wastewater Using Residual Eucalyptus Wood
Issued Date
2022-07-01
Resource Type
ISSN
16865456
eISSN
24082384
Scopus ID
2-s2.0-85132281754
Journal Title
Environment and Natural Resources Journal
Volume
20
Issue
4
Start Page
419
End Page
425
Rights Holder(s)
SCOPUS
Bibliographic Citation
Environment and Natural Resources Journal Vol.20 No.4 (2022) , 419-425
Suggested Citation
Yupin K., Neamhom T., Singhkant C., Sreesai S., Polprasert S. Color Removal of Pulp and Paper Mill Wastewater Using Residual Eucalyptus Wood. Environment and Natural Resources Journal Vol.20 No.4 (2022) , 419-425. 425. doi:10.32526/ennrj/20/202200038 Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/84697
Title
Color Removal of Pulp and Paper Mill Wastewater Using Residual Eucalyptus Wood
Author(s)
Author's Affiliation
Other Contributor(s)
Abstract
This study investigated the color removal efficiency of pulp and paper mill wastewater using residual eucalyptus wood as a method to minimize the solid wastes generated from pulp and paper processes. The activated carbon used in this study as the color adsorbent was produced from residual eucalyptus wood. The carbon was activated with phosphoric acid and carbonized in a furnace at 500°C for 60 min. Effects of types and amounts of activated carbon on color removal efficiency were evaluated. Three types of solid wastes, consisting of wood chip, bark, and mixed wood (wood chip:bark, 1:1), were investigated at a loading of 1, 3, 5, and 7 g/100 mL under contact times of 30, 60, 90, and 120 min. The results showed that 7 g of wood chip activated carbon/100 mL under all contact times gave color removal efficiency of 94-97%. However, the highest adsorption capacity of 216 ADMI/g occurred at 1 g of adsorbent used. Freundlich isotherms were satisfactorily fitted to experimental data for the best condition with high correlation coefficients. The color removal efficiency depended on surface area, pore volume, structure, and characteristics of the activated carbon.