羽毛纤维对废水中重金属离子的吸附性能研究  

Adsorption performance of feather fiber to heavy metal ions in wastewater

作　　者：刘莲 花金龙 区卫钊 温箐 周瑜 胡万丽 LIU Lian;HUA Jin-long;OU Wei-zhao;WEN Qing;ZHOU Yu;HU Wan-li(Guangzhou Fiber Product Testing and Research Institute, Guangzhou 511447, China)

机构地区：[1]广州纤维产品检测研究院,广州511447

出　　处：《工业用水与废水》2017年第6期34-37,共4页Industrial Water & Wastewater

基　　金：广州市纤维产品检测研究院院内攻关项目(2015XJK2)

摘　　要：利用禽类羽毛纤维作为吸附剂,吸附溶液中的重金属离子Cu^(2+)、Zn^(2+)、Ni^(2+)、Pb^(2+)、Cr^(6+)。考察温度、pH值、吸附剂投加量、重金属离子初始浓度等对羽毛纤维吸附效果的影响并建立吸附等温线。结果表明,羽毛纤维能吸附重金属离子,随着温度、吸附剂投加量的增大,重金属离子初始浓度的降低,羽毛纤维对重金属离子的吸附率逐渐提高。随着pH值的升高,羽毛纤维对Cu^(2+)、Zn^(2+)、Ni^(2+)、Pb^(2+)的吸附率提高,对Cr^(6+)的吸附率降低。羽毛纤维对Cu^(2+)、Zn^(2+)、Ni^(2+)、Pb^(2+)吸附符合Freundlich吸附等温模型。羽毛纤维对重金属离子的吸附能力顺序为Pb^(2+)>Cu^(2+)>Zn^(2+)>Ni^(2+)>Cr^(6+)。Fowl feather fiber was used to adsorb Cu2+,Zn2+,Ni2+,Pb2+,Cr6+and some other heavy metal ions in solution.The influence of temperature,pH value,adsorbent dosage,and initial concentration of heavy metal ions on adsorption performance of feather fiber to heavy metal ions were investigated with the adsorption isotherm curve formed at the same time.The results showed that,the adsorption rates of heavy metal ions by feather fiber was increased with the increasing temperature,adsorbent dosage,and the decreasing initial concentrations of heavy metal ions.With the increase of pH value,the adsorption rates of Cu2+,Zn2+,Ni2+and Pb2+were increased,however,the adsorption rate of Cr6+was decreased.The adsorption of Cu2+,Zn2+,Ni2+and Pb2+by feather fiber fits Freundlich adsorption isotherm model.The adsorption capacity of feather fiber to heavy metal ions showed the following order:Pb2+>Cu2+>Zn2+>Ni2+>Cr6+.

关 键 词：羽毛纤维 吸附 重金属 废水 

分 类 号：X703.1[环境科学与工程—环境工程]