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Journal of Medicinal Plants and By-products، جلد ۱۳، شماره Special، صفحات ۷۴۱-۷۴۶
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عنوان انگلیسی Application of Licorice-derived Activated Carbon in Tannery Wastewater Treatment
چکیده انگلیسی مقاله This study used licorice-derived activated carbon to absorb chromium and COD from tannery wastewater. Wastewater used in this research was prepared from Charm Shahr Industrial Estate. First, licorice was converted into activated carbon using zinc chloride as an activator. The licorice-derived activated carbon w:as char:acterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and Brunauer–Emmett–Teller (BET) analysis. Licorice-derived activated carbon was then used to adsorb Cr and COD from tannery wastewater. Factors affecting the adsorption rate, including pH, adsorbent dosage, contact time, and temperature, were investigated. The optimal conditions were pH=7 and adsorbent dosage of 2 g/100 ml. Also, the test time of 30 minutes was determined as the optimal time. Licorice-derived activated carbon adsorbed 99.93% and 99.22% of Cr (III) and COD, respectively. According to the results, Cr and COD adsorption by licorice-derived activated carbon followed the Freundlich isotherm. In addition, Cr and COD adsorption by licorice-derived activated carbon followed the pseudo-second-order kinetic model.
کلیدواژه‌های انگلیسی مقاله Adsorbent, Adsorption, Heavy metal, medicinal plant
نویسندگان مقاله Toktam Shahriari |
Department of Environmental Engineering, Faculty of Environment, University of Tehran, Tehran, Iran

Hojat Kangazian |
Department of Environmental Engineering, Faculty of Environment, University of Tehran, Tehran, Iran

Behnoush Aminzadeh Goharrizi |
Department of Environmental Engineering, Faculty of Environment, University of Tehran, Tehran, Iran

نشانی اینترنتی https://jmpb.areeo.ac.ir/article_130712_0d45eafd001def99175e379c7e060674.pdf
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