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| Absorption of Copper Ions by Amino Chelated Bagasse Cellulose in Simulated Heavy Metals Wastewater |
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| DOI： |
| Key Words:amino chelated bagasse cellulose; Cu2+; kinetic mode; isotherm |
| Fund Project:863项目（2010GXNSFE013006）；广西科技项目（桂科攻11107021-4-5 &桂科攻 10123010-5）。 |
| Author Name | Affiliation | | 吴家前1 | 1.广西壮族自治区环境监测中心站，广西南宁，530004 | | 季剑锋2 | 2.广西大学轻工与食品工程学院，广西南宁，530004 | | 林叶丹2 | 2.广西大学轻工与食品工程学院，广西南宁，530004 | | 朱红祥2,* | 2.广西大学轻工与食品工程学院，广西南宁，530004 |
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| Abstract: |
| The effects of pH, temperature, absorption time and the initial concentration of Cu2+ on the absorption of Cu2+ by the amino chelated bagasse cellulose which was prepared in advance in simulated heavy metals wastewater were investigated. Experimental results showed that the adsorbance of Cu2+ by amino chelated bagasse cellulose increased with the increase of the value of pH or the initial concentration of Cu2+. After 25 min of absorption, adsorption of Cu2+ almost was saturated. Study of absorption kinetics of Cu2+ indicated that amino chelated cellulose absorption of Cu2+ was in line with the Pseudo-second-order Kinetic model. The equilibrium data was tested with Langmuir and Freundlich isotherm equations. Langmuir isotherm was proved to be more suitable for the description of adsorption of Cu2+ by amino chelated bagasse cellulose. |
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