Journal of South China University of Technology (Natural Science Edition) ›› 2005, Vol. 33 ›› Issue (9): 73-76.

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Screening and Adsorptivity to Cr(VI)of Aspe Fumisynnematus Strain HLS-6

Hu yong-you  Liu Tie-mei   

  1. College of Environmental Science and Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China
  • Received:2004-11-23 Online:2005-09-25 Published:2005-09-25
  • Contact: 胡勇有(1964-)，男，教授，博士生导师，主要从事水污染控制技术方面的研究 E-mail:ppyyhu@scut.edu.cn
  • About author:胡勇有(1964-)，男，教授，博士生导师，主要从事水污染控制技术方面的研究
  • Supported by:

    广州市环境保护局资助项目(穗计[006])

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Abstract:

One Aspergillus fumisynnematus strain HLS-6 with excellent adsorptive efficiency to the heavy metal Cr(VI)was screened from the sludge in a certain cloacae by means of enrichment cultivation.The influence of pH,temperature and initial mass concentration of Cr(VI)on the adsorption of Cr(VI)by HLS-6 was then investi-gated,with the results shown below:(1)theadsorptive efficiency achieves 96.7% at 25～30℃when the pH value is 1～2,(2)with the increase in initial mass concentration of Cr(VI),the adsorptive capacity increases, while the adsorptive efficiency decreases,(3)when the initial mass concentration ofCr(VI)is 9.42 or91.7mg/L,the adsorptive efficiency reaches 100% or 50.8% in 48h,and the adsorptive capacity reaches 4.9 or 23.3 mg/g,and(4)with a strain age of 3～5 d,HLS-6 is of the greatest adsorptive eficiency for Cr(VI).

Key words: Aspergillus fumisynnematus, screening, heavy metal, biosorption