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Removal of nitrate from aqueous solutions by activated carbon prepared from sugar beet bagasse

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a b s t r a c t
In this study, activated carbons were prepared from sugar beet bagasse by chemical activation and the
prepared activated carbons were used to remove nitrate from aqueous solutions. In chemical activation,
ZnCl2 was used as chemical agent. The effects of impregnation ratio and activation temperature were
investigated. The produced activated carbons were characterized by measuring their porosities and pore
size distributions. The microstructure of the activated carbons was examined by scanning electron
microscopy (SEM). The maximum specific surface area of the activated carbon was about 1826 m2/g at
700 0C and at an impregnation ratio of 3:1. The resulting activated carbon was used for removal of nitrate
from aqueous solution. The effects of pH, temperature and contact time were investigated. Isotherm studies
were carried out and the data were analyzed by Langmuir, Freundlich and Temkin equations. Three
simplified kinetic models were tested to investigate the adsorption mechanism.
Keywords: Sugar beet bagasse, Activated carbon, Adsorption, Nitrate, Chemical activation

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Ketersediaan

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Informasi Detail

Judul Seri

Bioresource Technology

No. Panggil

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Penerbit

: Elsevier Ltd. All rights reserved., 2009

Deskripsi Fisik

Bioresource Technology 101 (2010) 1675–1680

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

KIMIA KARBON

Info Detail Spesifik

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Pernyataan Tanggungjawab

yuli/agus

Versi lain/terkait

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