Modeling Adsorption of Cu(II) Using Polyaniline-Coated Sawdust in a Fixed-Bed Column

作者：Liu Deli^*; Sun Dezhi

来源：Environmental Engineering Science, 2012, 29(6): 461-465.

DOI：10.1089/ees.2010.0435

• adsorption
• polyaniline
• sawdust
• fixed-bed

Heavy metals are a common pollutant in industrial wastewater. They are highly toxic and threaten human health and the ecosystem. Polyaniline-coated sawdust (PANI/SD) is a good adsorbent for removing toxic metal ions from contaminated water. In this study, PANI/SD was prepared via the oxidation of aniline on the surface of sawdust. Adsorption of Cu(II) from aqueous solutions in a continuous fixed-bed system was first investigated. Effects of the bed height, inlet flow rate, and concentration on the breakthrough characteristics of the adsorption system were determined. Average bed adsorption capacity q(0) was 58.23 mg/g. The adsorption data were fitted to three well-established fixed-bed adsorption models. PANI/SD was shown to be an effective adsorbent for removing Cu(II) from wastewater. This not only provides a new way to remove Cu(II) but also presents a new application of polyaniline.

• 出版日期2012-6
• 单位哈尔滨工业大学