Biosorption of Copper from Aqueous Solutions Using Waste Microzyme
The test and use of natural materials as biosorbents for the removal of various pollutants such as heavy metals from industrial wastewater is under constant development. Consequently this work concerns the study of copper biosorption by means of pretreated waste microzyme. The copper removal study has been carried out batchwise where the influence of physico-chemical key parameters such as the pH value of solution, the temperature, the agitation speed, the contacting time, the amount of adsorbent and initial copper ions concentration have been considered. The maximum percent metal removal was attained after about 30 min. The greatest increase in the rate of biosorption of copper ions on waste microzyme was observed for pH changes from 2 to 6. The adsorbent can be effectively regenerated using 0.1M HCl and reused. The experimental results provided evidence for ion exchange as the major biosorption mechanisms for binding the divalent metal ions to the waste microzyme.
waste microzyme copper biosorption ion exchange
NIE Jinxia CHEN Yunnen LIANG Qi
School of Resource and Environmental Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, Jiangxi, China
国际会议
2007环境科学与技术国际会议(The 2007 International Symposium on Environmental Science and Technology)
北京
英文
2007-11-13（万方平台首次上网日期，不代表论文的发表时间）