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Adsorption of Cr (VI) Oxyanions onto Modified Wood Pulp.
- Source :
-
Polymer-Plastics Technology & Engineering . Jan2006, Vol. 45 Issue 1, p71-76. 6p. 4 Charts, 7 Graphs. - Publication Year :
- 2006
-
Abstract
- A new adsorbent was prepared from wood pulp (WP) after reaction with epichlorohydrin and dimethylamine in the presence of pyridine and N,N-dimethylformamide (DMF). The adsorption of Cr (VI) from aqueous solutions by the so-prepared wood pulp adsorbent (WP-A) was investigated. Various factors affecting adsorption, such as pH, adsorbent concentration (1–5 g/L), agitation time (5–60 min), and Cr (VI) concentration (50–700), were taken into consideration. The adsorption of Cr (VI) onto (WP-A) was found to be pH-dependent and maximum adsorption was obtained at pH 3. The adsorption data obeyed Langmuir and Freundlich adsorption isotherms. The Langmuir adsorption capacity (Q max ) was found to be 588.24 mg/g. Freundlich constants, K F and n, were found to be 55.03 and 2.835, respectively. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 03602559
- Volume :
- 45
- Issue :
- 1
- Database :
- Academic Search Index
- Journal :
- Polymer-Plastics Technology & Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 19328353
- Full Text :
- https://doi.org/10.1080/03602550500373519