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首页> 外文期刊>Desalination and water treatment >Removal of Cr (Ⅲ) from model solutions and a real effluent by Phanerochaete chrysosporium isolated living microorganism: equilibrium and kinetics
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Removal of Cr (Ⅲ) from model solutions and a real effluent by Phanerochaete chrysosporium isolated living microorganism: equilibrium and kinetics

机译：Phanerochaete chrysosporium分离出的活微生物从模型溶液和实际废水中去除Cr（Ⅲ）：平衡和动力学

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摘要

Removal of Cr (Ⅲ) was investigated using Phanerochaete chrysosporium-isoldAe& living microorganism; pH, contact time, temperature and nutrients addition were examined. It was found that P. chrysosporium can tolerate up to 600mg/L chromium solution. The optimal growth conditions of the biosorbent were found to be 35 ℃, 26 h contact time and pH = 5. In addition, a complex nitrogen substrate, yeast powder, was shown to be most efficient than a synthetic one, like di-hydrogen ammonium phosphate. High chromium removal (98%) was observed in these optimal growth conditions. Experimental data were found to follow a Langmuir isotherm model (r~2 > 0.99). Maximum sorption capacity for the present biosorbent was 213 mg/g according to the Langmuir isotherm model, namely significantly higher than the values reported in the literature, even for activated carbon. The fitting of experimental data onto kinetic models showed the relevance of the pseudo-second-order model (r~2 > 0.99) for Cr (Ⅲ) sorption by P. chrysosporium. In addition, a real effluent was obtained from tanning factory and was treated to examine process feasibility on real effluents.
机译：用Phanerochaete chrysosporium-isoldAe和活性微生物研究了Cr（Ⅲ）的去除。检查pH，接触时间，温度和营养添加。发现金孢假单胞菌可耐受高达600mg / L的铬溶液。发现该生物吸附剂的最佳生长条件是35℃，接触时间为26 h，pH =5。此外，已证明复合氮底物酵母粉比合成氢底物（如二氢铵）最有效。磷酸盐。在这些最佳生长条件下，观察到较高的铬去除率（98％）。实验数据符合Langmuir等温线模型（r〜2> 0.99）。根据Langmuir等温线模型，本生物吸附剂的最大吸附容量为213mg / g，即使活性炭也明显高于文献报道的值。实验数据拟合动力学模型表明假二阶模型（r〜2> 0.99）与金黄色葡萄球菌吸附Cr（Ⅲ）的相关性。此外，从制革厂获得了一种真实的废水，并对其进行了处理以检查该废水的工艺可行性。

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  • 来源
    《Desalination and water treatment》 |2013年第30期|5627-5637|共11页
  • 作者

    Mohammad Noori Sepehr; Mansur Zarrabi; Abdeltif Amrane; Mohammad Reza Samarghandi;

  • 作者单位

    Faculty of Health, Department of Environmental Health Engineering, Alborz University of Medical Science, P.O. Box No. 31485/561, Kara], Iran;

    Faculty of Health, Department of Environmental Health Engineering, Alborz University of Medical Science, P.O. Box No. 31485/561, Kara], Iran;

    Ecole Nationale Superieure de Chimie de Rennes, Universite Rennes 1, CNRS, UMR 6226, Avenue du General Leclerc, CS 50837, 35708, Rennes Cedex 7, France;

    aculty of Health, Research Center for Health Sciences, Department of Environmental Health Engineering, Hamadan University of Medical Sciences, Hamadan, Iran;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Batch study; Cr (Ⅲ); Biosorption; Growth rate; Equilibrium study;

    机译：批量研究;铬（Ⅲ）;生物吸附增长率;平衡研究;

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