期刊名称：Iranica Journal of Energy and Environment (IJEE)
印刷版ISSN：2079-2115
电子版ISSN：2079-2123
出版年度：2010
期号：1
页码：1-8
语种：English
出版社：Noshirvani University of TEchnology
摘要：Kaolin known as mineral clay possesses special feature has extensive industrial usage. One of the distinct criteria of this substance is its white color. There are extensive resources of kaolin in Iran which unfortunately, due to the existence of iron oxides does not have transparent properties. In this study biological dissolution of iron oxide by Aspergillus niger NCIM548 was conducted in order to remove kaolin impurities. As a result, a model was developed to predict the percentage of iron removal using A. niger. Bioleaching of iron oxide at optimum condition resulted 2.2 percent of total iron removal. The obtained results were promising for continuous process. There was possibility of increasing iron oxide removal at optimum operating condition with use of related fungi. Further studies may be required to enhance the desired condition for maximum iron oxide removal from kaolin.
