Fixed Bed Column Study for Ciprofloxacin Hydrochloride Removal from Solution Using Modified Grapefruit Peel
[1]Wei-hua zou,FuYanZhen Liu Penglei,liu xiao,et al.Fixed Bed Column Study for Ciprofloxacin Hydrochloride Removal from Solution Using Modified Grapefruit Peel[J].Journal of Zhengzhou University (Engineering Science),2018,39(06):78-82.[doi:10.13705/j.issn.1671-6833.2017.06.022]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
39
Number of periods:
2018 06
Page number:
78-82
Column:
Public date:
2018-10-24
- Title:
- Fixed Bed Column Study for Ciprofloxacin Hydrochloride Removal from Solution Using Modified Grapefruit Peel
- Keywords:
- Modification of pomelo peel; Ciprofloxacin hydrochloride (CIP); Dynamic adsorption; Thomas model; BDST model; Mass transfer model
- CLC:
- -
- Abstract:
- In this study, the adsorption capacity of modified grapefruit peel to ciprofloxacin hydrochloride (CIP) was investigated in the fixed-bed column technique. The effects of initial CIP ciprofloxacin, flow rate, and column height on the breakthrough characteristics of the adsorption system were studied. With the increase of adsorption column height or decrease of initial concentration and flow rate, the breakthrough time were increased. The Thomas model was applied to the experimental data to determine the characteristic parameters of the column that were useful for process design.The R2 of Thomas model was more than 0.9500 and the experimental values qexp was similar to theoretical values qe. It was indicated that Thomas model is suitable for describe the dynamic adsorption. The bed depth service time( BDST) model was applied to predict the breakthrough time and saturated time under different conditions. The results showed that BDST model could predict breakthrough time accurately and maximum error were less than 1.32%. The theoretical breakthrough curve according to mass transfer model was accordance with experimental breakthrough curve in the column process.
- References:
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Last Update:
2018-10-27