標題: Application of Aspergillus oryzae and Rhizopus oryzae for Cu(II) removal
作者: Huang, CP
Huang, CP
環境工程研究所
Institute of Environmental Engineering
關鍵字: fungi;copper;adsorption;Aspergillus oryzae;Rhizopus oryzae;heavy metal;immobilization
公開日期: 1-九月-1996
摘要: Biosorption of copper(II) by the untreated and acid-treated fungal biomass has been studied in both batch and column modes. Two species, Aspergillus oryzae and Rhizopus oryzae, were used in this study. A. oryzae mycelia (undergoing acid-washing) exhibit a clear advantage in Cu(II) removal, compared with other adsorbents. The acid-washing process can strongly enhance the adsorption capacity for A. oryzae mycelia. However, acid-washing does not alter the metal adsorption capacity of R. oryzae mycelia. The result indicates that acid-washing is not only a pretreatment step but also a regeneration step in the heavy metal removal process. These dual purposes, therefore, give the acid-washing biomass an indication of successful prospect. Cultivating A. oryzae in pellet form is an effective means of mycelium immobilization. The method established in this study provides the high-yield, uniformly-sized particles (2-3 mm in diameter), which are effective in solid-liquid separation. This pellet column can completely remove metals before breakpoint. After the breakpoint, a significant amount of Cu(II) removal over a long period has been observed. This is thought to be the result of intracellular uptake. Copyright (C) 1996 Elsevier Science Ltd
URI: http://dx.doi.org/10.1016/0043-1354(96)00020-6
http://hdl.handle.net/11536/1065
ISSN: 0043-1354
DOI: 10.1016/0043-1354(96)00020-6
期刊: WATER RESEARCH
Volume: 30
Issue: 9
起始頁: 1985
結束頁: 1990
顯示於類別:期刊論文


文件中的檔案:

  1. A1996VM11900007.pdf