Paper Title:
Study on Adsorbing Chromium(VI) Ions in Wastewater by Aureobacidium pullulans Secretion of Melanin
  Abstract

Heavy water is a class of highly contaminated waste water, even if the concentration is small, it can cause harm, and the toxicity is long-term sustainability.In this paper, Aureobasidium pullulans secretion of melanin were used for adsorption of Cr6+ ions in waste water.Aureobasidium pullulans strain were activated, cultured for seed and fermented, so that secreted melanin. The Aureobasidium pullulans secretion of melanin were made of dry cell, four factors such as pH, time, amount of bacteria,temperature and three level orthogonal experimental made for adsorption of chromium metal.Results showed, adsorption of chromium metal by dry cells for the best conditions: control temperature 30 , pH 3, the adsorption time was 2 hours, the absorption rate was 27%; and reached the four factors on the adsorption of Cr6+ for Aureobasidium pullulans followed the order: pH> bacteria amount> of time> temperature. In the best adsorption conditions were wet cell assay for adsorption of chromium metal. With 4% (V/V) hydrogen peroxide of 0.01ml/mg bleaching for the dry and wet cell, then for its adsorption of chrome metal. The results showed that the order of effect on adsorption of heavey metal ions by Aureobasidium were: the dry cells secretion of melanin> the wet cells secretion of melanin > decolorized dry cells> decolorized wet cells. It showed that adsorption ability of heavy metals by Aureobasidium pullulans was related to its secretion of melanin.

  Info
Periodical
Advanced Materials Research (Volumes 156-157)
Edited by
Jingtao Han, Zhengyi Jiang and Sihai Jiao
Pages
1378-1384
DOI
10.4028/www.scientific.net/AMR.156-157.1378
Citation
X. H. Yu, Z. X. Gu, R. Shao, H. X. Chen, X. J. Wu, W. Xu, "Study on Adsorbing Chromium(VI) Ions in Wastewater by Aureobacidium pullulans Secretion of Melanin", Advanced Materials Research, Vols. 156-157, pp. 1378-1384, 2011
Online since
October 2010
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Xiao Qing Luo, Xiao Yan Lin, Xue Gang Luo, An Kai Luo, Xuan Liang
Abstract:This paper reports the feasibility of using rice husk to remove Ag+ from synthetic wastewater. Effect of various adsorption parameters,...
45
Authors: Guo Xiang Xu, Wen Bin Chen
Chapter 7: Pollution Control Project (Air, Water, Solid)
Abstract:Experiment was made to study heavy metal ion mining wastewater.The effect of Temperature, pH, Initial concentration, coexisting ions and time...
1482
Authors: Xuan Liang, Xue Gang Luo, Xiao Yan Lin, Qiang Mei
G. Others
Abstract:Low cost industrial and agricultural by-products are promising materials for water pollution treatment such as removal of heavy metals. This...
472
Authors: Zheng Jun Gong, Wenbo Zhou, Zhong Ping Qiu
Chapter 7: Pollution Control (Air, Water, Solid)
Abstract:In this study, removal of copper(Ⅱ) from aqueous solutions was examined using corn stalk. In the batch mode adsorption studies, the effects...
1950
Authors: Sun Yang, Wu Zheng
Chapter 1: New Materials and Advanced Materials
Abstract:This paper mainly introduces the static method and dynamic method to study the adsorption properties of CrO42- and F- by using the anion...
134