Journal
JOURNAL OF ENVIRONMENTAL ENGINEERING
Volume 145, Issue 8, Pages -Publisher
ASCE-AMER SOC CIVIL ENGINEERS
DOI: 10.1061/(ASCE)EE.1943-7870.0001530
Keywords
Chitosan; Adsorption bed; Breakthrough curves; Water quality model
Funding
- National Natural Science Foundation of China [51278295]
- Basic ability improvement project for young and middle-aged teachers in colleges and universities in Guangxi Province [2018KY0663]
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Continuous adsorption of copper ions on a chitosan-based fibrous adsorbent was investigated in the adsorption bed. The experiment was carried out at various flow rates (11.8, 20.2, and 30.4 mL min-1) and inlet concentrations (50, 100, and 200 mg L-1). The breakthrough time decreased with increases in flow rate and initial copper ion concentration. A Thomas model and Yoon-Nelson model were applied to the experimental data. The maximum adsorption capacity from the Thomas model was found to be 11.16 mg g-1. A one-dimensional water quality model was used to investigate the migration process of copper ions in a sudden pollution accident in a river. Chitosan-based fibrous adsorbent installed in the lower reaches could reduce the harmful effects of heavy metals on the river ecosystem.
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