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Adsorption Characteristics of 2,4-Dichlorophenoxybutric Acid Using Bamboo Activated Carbon in a Fixed Bed

Adsorption Characteristics of 2,4-Dichlorophenoxybutric Acid Using Bamboo Activated Carbon in a Fixed Bed
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摘要 Adsorption and desorption characteristics of 2,4-dichlorophenoxybutyric acid (2,4-DB) from aqueous solution on bamboo activated carbon (BAC) were studied in a fixed bed adsorber. The adsorption equilibrium capacity of 2,4-DB on BAC increased with decreasing initial pH of the solution and with a maximum adsorption capacity of 1.61 mol/kg. The adsorption rate of 2,4-DB on BAC could be best fitted by the pseudo first-order model. The adsorption model based on the linear driving force approximation (LDFA) was used for simulating the adsorption behavior of the 2,4-DB in a fixed bed. More than 95% desorption of 2,4-DB was obtained using distilled water. Adsorption and desorption characteristics of 2,4-dichlorophenoxybutyric acid (2,4-DB) from aqueous solution on bamboo activated carbon (BAC) were studied in a fixed bed adsorber. The adsorption equilibrium capacity of 2,4-DB on BAC increased with decreasing initial pH of the solution and with a maximum adsorption capacity of 1.61 mol/kg. The adsorption rate of 2,4-DB on BAC could be best fitted by the pseudo first-order model. The adsorption model based on the linear driving force approximation (LDFA) was used for simulating the adsorption behavior of the 2,4-DB in a fixed bed. More than 95% desorption of 2,4-DB was obtained using distilled water.
作者 Tae Young Kim Sung Yong Cho Tae Young Kim;Sung Yong Cho(Department of Environmental Energy Engineering, Chonnam National University, Gwangju, Republic of Korea;Department of Environmental Education, Mokpo National University, Jeollanamdo, Republic of Korea)
出处 《Journal of Agricultural Chemistry and Environment》 CAS 2022年第3期184-195,共12页 农业化学和环境(英文)
关键词 Adsorption DESORPTION 2 4-Dichlorophenoxybutric Acid Fixed Bed KINETIC Adsorption Desorption 2 4-Dichlorophenoxybutric Acid Fixed Bed Kinetic
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