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首页> 外文期刊>Journal of Oceanography and Marine Science >Removal of Fe(II), Cu(II), Zn(II), and Pb(II) ions from aqueous solutions by duckweed
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Removal of Fe(II), Cu(II), Zn(II), and Pb(II) ions from aqueous solutions by duckweed

机译:浮萍从水溶液中去除Fe(II),Cu(II),Zn(II)和Pb(II)离子

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Duckweed was used to study the adsorption of Fe(II), Cu(II), Zn(II), and Pb(II) ions from aqueous solutions. The experimental conditions which includes; pH, contact time, initial concentration, and loading weight on the removal process were investigated. Bach adsorption was studied at 30°C. The efficiency of adsorption depends on pH value, it increases with the increase of pH value from (2-8 ) in range time between 60 to 90 min. The most percentage of removal in the main way of loading weighed was 1.5 gm and 50 ml mixed metal ions solution at 50 ppm concentration of each metal ion. The study of isothermal showed that data was confirmed with temkin isotherm model. The removal order was found to be Pb2+ Zn2+ Cu2+ Fe2+. The potential of application for the treatment of solutions containing these heavy metals in multimetal solutions is indicated. The characterization (the infrared) for the surface of duckweed showed the presence of many function groups which can be binding with metal cations.
机译:浮萍用于研究水溶液中Fe(II),Cu(II),Zn(II)和Pb(II)离子的吸附。实验条件包括:研究了去除过程中的pH,接触时间,初始浓度和负载量。在30℃下研究了巴赫吸附。吸附效率取决于pH值,在60到90分钟的变化范围内,随着pH值从(2-8)的增加而增加。在称重的主要装载方式中,去除率最高的是1.5 gm和50 ml混合金属离子溶液,每种金属离子的浓度为50 ppm。等温研究表明,该数据已被temkin等温线模型证实。发现去除顺序为Pb2 +

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