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首页> 外文期刊>Frontiers of environmental science & eng >Removal of Zn~(2+) from aqueous solution by biomass of Agaricus bisporus
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Removal of Zn~(2+) from aqueous solution by biomass of Agaricus bisporus

机译：双孢蘑菇生物量去除水溶液中的Zn〜（2+）

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摘要

Biosorption of Zn~(2+) from aqueous solutions by biomass of Agaricus bisporus was investigated. The removal rates of Zn~(2+) by A. bisporus under different parameters (e.g., solution pH, bio-sorbent dosage and initial Zn~(2+) concentration) were studied. The inhibition of A. bisporus's biosorption by anionic ligands EDTA (Ethylene Diamine Tetraacetic Acid), acetate and citrate) implied that EDTA and citrate might be used as eluting reagents. Regular and simultaneous solution pH change and light metal ions release after biosorption indicated that an ion exchange mechanism was involved. From FT-IR (Fourier Transform Infrared) spectroscopy, the main functional groups participated in biosorption were found. Biosorption of Zn~(2+) by A. bisporus could be well described by the Freundlich and Langmuir models. In conclusion, the biomass of A. bisporus showed high potential for the treatment of wastewater containing Zn~(2+).
机译：研究了双孢蘑菇的生物量对水溶液中Zn〜（2+）的生物吸附作用。研究了双孢蘑菇在不同参数（例如溶液pH，生物吸附剂用量和初始Zn〜（2+）浓度）下对Zn〜（2+）的去除率。阴离子配体EDTA（乙二胺四乙酸），乙酸盐和柠檬酸盐对双孢曲霉的生物吸附具有抑制作用，这意味着EDTA和柠檬酸盐可用作洗脱试剂。生物吸附后溶液的pH值有规律地同时变化，并且生物吸附后释放出轻金属离子，这表明参与了离子交换机制。从傅立叶变换红外光谱（FT-IR），发现了参与生物吸附的主要官能团。 Freundlich和Langmuir模型可以很好地描述双孢曲霉对Zn〜（2+）的生物吸附。综上所述，双孢曲霉的生物量具有较高的处理锌〜（2+）废水的潜力。

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  • 来源
    《Frontiers of environmental science & eng》 |2013年第4期|531-538|共8页
  • 作者

    Feng XUE; Beicheng XIA; Rongrong YING; Shili SHEN; Peng ZHAO;

  • 作者单位

    School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China;

    School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China;

    Nanjing Institute of Environmental Sciences, MEP, Nanjing 210042, China;

    School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China;

    School of Environmental Science and Engineering, Sun Yat-Sen University, Guangzhou 510275, China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    biosorption; Agaricus bisporus; zinc; ion exchange; FT-IR; isotherms;

    机译：生物吸附双孢蘑菇;锌离子交换;红外光谱等温线;

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