Adsorption performance of eucalyptus biochar fixed-bed column for manganese removal from groundwater
Journal article
Authors/Editors
Strategic Research Themes
Publication Details
Author list: Arachporn Wilamas, Soydoa Vinitnantharat and Anawat Pinisakul
Publisher: มหาวิทยาลัยมหาสารคาม
Publication year: 2023
Volume number: 42
Issue number: 5
Start page: 178
End page: 186
Number of pages: 9
ISSN: 2985-2617
eISSN: 2985-2625
URL: https://li01.tci-thaijo.org/index.php/scimsujournal/article/view/256628/177118
Languages: English-United States (EN-US)
Abstract
Removal of manganese in contaminated groundwater using filtration is one of the most treatment systems.
The objective of this research was to study the efficiency of fixed-bed adsorption column using eucalyptus biochar and potassium permanganate-modified eucalyptus biochar as filter media to remove manganese from groundwater. The initial manganese concentration of 0.723 +- 0.002 mg/L was continuously fed to the top of column at a flow rate of 5 L/d. Water samples were collected periodically within 24 hours. Thomas and Yoon-Nelson models were used to describe the adsorption performance. Results showed that adsorption capacity of eucalyptus biochar was 1.812 mg/g higher than that of modified eucalyptus biochar (0.769 mg/g) as it has higher iodine number. The adsorption times at 50% breakthrough of eucalyptus biochar and modified eucalyptus biochar were 1,020 minutes and 240 minutes, respectively, which were consistent with the Yoon-Nelson model. Use of EB and MEB as local filter media can reduce the cost of improving community water quality.
Keywords
groundwater, Manganese