Journal
JOURNAL OF ENVIRONMENTAL MANAGEMENT
Volume 90, Issue 1, Pages 519-522Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2007.12.003
Keywords
Wheat straw charcoal; Mustard straw charcoal; Nitrate-nitrogen; Adsorption effectiveness; Temperature dependency
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The effectiveness of wheat straw charcoal (WSC) and mustard straw charcoal (MSC) as adsorbents for the removal of nitrate-nitrogen from water has been investigated. Commercial activated carbon (CAC) was used as a standard for comparison. The adsorption effectiveness of MSC was highest followed by CAC and WSC irrespective of the concentration of nitrate-nitrogen in the range of 0-25 mg/l. The effects of temperature in the range of 15-28 degrees C on adsorption by WSC and MSC have also been investigated. It was observed that the temperature dependence of the adsorption effectiveness of MSC was higher than that of WSC and CAC. It is concluded that the MSC can be used for the in situ treatment by adsorption of nitrate-nitrogen in underground and Surface water. (C) 2007 Elsevier Ltd. All rights reserved.
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