Response Surface Methodology for Optimization of Enrofloxacin Adsorption Using Activated Carbon Derived from the Residue of Desilicated Rice Husk
[1]Zhang Binpeng,Han Xiuli,Fang Shuqi,et al.Response Surface Methodology for Optimization of Enrofloxacin Adsorption Using Activated Carbon Derived from the Residue of Desilicated Rice Husk[J].Journal of Zhengzhou University (Engineering Science),2018,39(06):64-68.[doi:10.13705/j.issn.1671-6833.2017.06.030]
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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:
64-68
Column:
Public date:
2018-10-24
- Title:
- Response Surface Methodology for Optimization of Enrofloxacin Adsorption Using Activated Carbon Derived from the Residue of Desilicated Rice Husk
- Keywords:
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Adsorption mechanism; Activated carbon; The response surface method. The adsorption mechanism; Rice husk
- CLC:
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- Abstract:
- Activated carbon (AC) prepared from residue of desilicated rice husk (DRH) was investigated for the removal of antibiotic enrofloxacin (ENR) from aqueous solution. The operating variables including contact time, adsorbent dosage, ENR concentration and solution pH were optimized using central composite design (CCD) under response surface methodology (RSM) approach. The better conditions for ENR adsorption were found out to be 355.3 min contact time, 0.40·g L-1 adsorbent dosage, 350.0 mg·L-1 ENR concentration, pH 7.69 with predicted adsorption uptake of 429.4 mg·g-1. The experimental equilibrium data agreed well with the Langmuir adsorption model and Koble-Corrigan model. The maximum monolayer adsorption capacity of AC was found to be 444.2 mg·g-1 at 298K. This study indicated that AC based on DRH was a promising candidate because of the lower cost and larger adsorption capacity for the removal of ENR from aqueous solution.
- References:
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Last Update:
2018-10-26
