REMOVAL OF TETRACYCLINE FROM AQUEOUS SOLUTIONS USING NANOSCALE ZERO VALENT IRON AND FUNCTIONAL PUMICE MODIFIED NANOSCALE ZERO VALENT IRON

被引：21

作者：

Guler, Ulker Asli ^{[1
]}

机构：

[1] Cumhuriyet Univ, Engn Fac, Dept Environm Engn, Sivas, Turkey

来源：

JOURNAL OF ENVIRONMENTAL ENGINEERING AND LANDSCAPE MANAGEMENT | 2017年 / 25卷 / 03期

关键词：

tetracyline; antibiotic; characterization; pumice; nanoscale zero valent iron; removal; batch; ADSORPTION; NANOPARTICLES; CR(VI); REMEDIATION; GROUNDWATER; BENTONITE; CATIONS; NITRATE; PB(II);

D O I：

10.3846/16486897.2016.1210156

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Nanoscale zero valent iron (nZVI) and functional pumice modified nanoscale zero valent iron (P-nZVI) were successfully synthesized and used for the removal of tetracycline (TC). These materials were characterized by SEM, TEM, XRD, FTIR, BET. Different factors such as the mass ratio, dosage of adsorbent, pH, initial TC concentration and temperature were investigated. Based on these results; a possible removal mechanism was proposed including TC adsorption and TC reduction via oxidation of Fe-0 to Fe3+. In addition, isotherm and thermodynamic parameters were applied to the equilibrium data. The maximum adsorption capacity of TC by nZVI and P-nZVI was 105.46 mg/g and 115.13 mg/g, respectively. Adsorption and reduction kinetics were examined for the TC removal process. The pseudo-second-order model and pseudo-first-order model was observed for adsorption and reduction process, respectively. Finally, more than 90% of TC from aqueous solutions was removed by nZVI and P-nZVI.

引用

页码：223 / 233

页数：11

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