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首页> 外文期刊>Journal of Environmental Science and Health >Biosorption of Remazol Black B dye (Azo dye) by the growing Aspergillus flavus
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Biosorption of Remazol Black B dye (Azo dye) by the growing Aspergillus flavus

机译：黄曲霉菌生长对Remazol Black B染料（偶氮染料）的生物吸附

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摘要

In the present study, an attempt was made for the removal of Remazol Black B dye (azo dye) by using Aspergillus Flavus during its growth. Biosorption of the azo dye by growing fungi was investigated in batch reactors as a function of initial concentration of dye (25-1000 mg/L), inoculum concentration (5-20%), and pH (2.5-6.5). The total biomass concentration decreased from 6.3 g/L to 1.44 g/L by increasing the dye concentration from 0 to 1000 mg/L. The dye uptake increased from 4.37 to 233 mg/g of dried biomass by increasing initial concentration of dye from 25 to 1000 mg/L. The nearly complete removal of dye was found at initial concentration upto 250 mg/L and at pH 4.5 which was used as working pH value for removal of dye in all the batch studies. The removal of Chemical Oxygen Demand (COD) was found to be 90% at 100 mg/L initial concentration of dye. The experiments were also performed with wastewater from textile industry with an aim to examine the potential of fungal biomass for the removal of dyes from wastewater under actual field conditions. The maximum dye removal was obtained at 30℃ temperature (87%) in presence of 1 % glucose concentration (89%) and 10 % inoculum concentration (91%) after 96 hours from textile wastewater. The surface of the biosorbent before and after the sorption of the dye was examined by FTIR and SEM analysis.
机译：在本研究中，人们尝试通过黄曲霉的生长来去除Remazol Black B染料（偶氮染料）。在间歇式反应器中研究了生长真菌对偶氮染料的生物吸附作用，它是染料的初始浓度（25-1000 mg / L），接种物浓度（5-20​​％）和pH（2.5-6.5）的函数。通过将染料浓度从0增加到1000 mg / L，总生物量浓度从6.3 g / L降低到1.44 g / L。通过将染料的初始浓度从25 mg / L增加到1000 mg / L，干生物质的染料吸收量从4.37毫克/克增加到233毫克/克。发现在最高浓度250 mg / L和pH 4.5时几乎完全去除了染料，在所有批次研究中，该pH值都用作去除染料的工作pH值。发现在100 mg / L的染料初始浓度下，化学需氧量（COD）的去除率为90％。还对纺织工业废水进行了实验，目的是检验在实际田间条件下真菌生物质从废水中去除染料的潜力。 96小时后，在30％的温度（87％），1％的葡萄糖浓度（89％）和10％的接种物浓度（91％）的存在下，从纺织品废水中获得的最大染料去除量。通过FTIR和SEM分析检查染料吸附之前和之后的生物吸附剂的表面。

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  • 来源
    《Journal of Environmental Science and Health》 |2010年第10期|p.1256-1263|共8页
  • 作者

    V. P. RANJUSHA; REENA PUNDIR; KAPIL KUMAR; M. G. DASTIDAR; T. R. SREEKRISHNAN;

  • 作者单位

    Centre for Energy Study, Indian Institute of Technology Delhi, Hauz khas, New Delhi, India;

    rnCentre for Energy Study, Indian Institute of Technology Delhi, Hauz khas, New Delhi, India;

    rnCentre for Energy Study, Indian Institute of Technology Delhi, Hauz khas, New Delhi, India;

    rnCentre for Energy Study, Indian Institute of Technology Delhi, Hauz khas, New Delhi, India;

    rnDepartment of Biochemical Engineering & Biotechnology, Indian Institute of Technology Delhi, Hauz khas, New Delhi, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    biosorption; azo dye; aspergillus flavus; textile industry wastewater;

    机译：生物吸附偶氮染料黄曲霉;纺织工业废水;

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