锰矿尾渣改性壳聚糖的制备及对Cu^2＋的吸附  

Preparation of Manganese Tailings Modified Chitosan and Its Adsorption to Cu^(2+)

作　　者：李爱阳[1] 宋楚华[1] 蔡玲[1] 唐有根[2] 

机构地区：[1]湖南工学院化工系,衡阳421002 [2]中南大学化学化工学院,长沙410083

出　　处：《非金属矿》2008年第6期67-70,共4页Non-Metallic Mines

基　　金：湖南省自然科学基金项目(08JJ3015);湖南省教育厅科研计划项目(07C030);衡阳市工业科研开发计划项目(06KG59)

摘　　要：以冶炼工业废弃物锰矿尾渣为原料,采用浸渍法,与壳聚糖制备了一种高效复合吸附剂。应用扫描电镜、X射线衍射对其结构进行了表征。用这种复合吸附剂处理含Cu2+水溶液,当其投加量为3.0g/L,pH值为6～8,吸附时间为60min时,可使水溶液中Cu2+的吸附率达99%以上,出水水质能达到国家污水综合排放标准(GB8978-1996)中的一级标准。A composite superabsorbent was prepared from manganese tailings of metallurgy industry and chitosan using impregnation method. The adsorbent samples were characterized by scanning electron microscrope（SEM） and X-ray diffraction（XRD）. Treated aqueous solution of containing Cu^2＋ by this composite adsorbent, the adsorption rates of Cu^2＋ reached 99%, when the dosage of composite adsorbent was 3.0mg/L, the pH value was 6-9, the adsorption time was 60min. The effluent water could reach the national first class discharge standards（GB8978-1996）.

关 键 词：锰矿尾渣 壳聚糖 改性 吸附 CU2+ 

分 类 号：X703[环境科学与工程—环境工程] X7