Removal of Mercury from Wastewater by Adsorption Using Thiol-functionalized Eggshell Membrane
The thiol-functionalized eggshell membrane (TF-ESM) was prepared by esterification between thioglycolic acid (CH2SHCOOH) and oxygen-containing functional groups on eggshell membrane (ESM).A promising potential biosorbent,TF-ESM,was used for the removal of toxic mercury in wastewater.Aqueous of mercury ions removing properties by TF-ESM were studied through batch experiments.The results indicated that the modified ESM has greatly enhanced the adsorption capacity for Hg2+,the maximum capacity was increased more than 3-fold in comparison with the unmodified ESM,from 19.4 mg g-1 to 71.9 mg g-1.The optimum of pH value for Hg adsorption was in the range of 2-8,which the removing rate over 96％.The results obtained show that the novel thiol-functionalized eggshell membrane performed well the removal and recovery of mercury from low concentration wastewaters.
adsorption eggshell membrane thiol-functionalized mercury ions wastewater
Xianzhong Cheng Cunjie Hu Kuang Cheng Benmei Wei Shencai Hu
School of Chemical and Environmental Engineering, Wuhan Polytechnic University,Wuhan 430023, China Colleage of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004, China School of Biological and Pharmaceutical Engineering, Wuhan Polytechnic University,Wuhan 430023, Chin
国际会议
哈尔滨
英文
22-26
2010-07-24（万方平台首次上网日期，不代表论文的发表时间）