期刊文献+

白腐菌处理铅污染废弃稻草的动态变化研究 被引量:7

Study on the Dynamics of Pb Polluted Rice Straw Processing by White-Rot Fungi
下载PDF
导出
摘要 通过研究铅污染废弃稻草基质,探讨了不同w(Pb2+)条件下白腐菌对半纤维素、纤维素和木质素的降解性能以及发酵基质总重、腐殖酸碳的变化规律,并在降解半纤维素、纤维素和木质素的同时,研究了白腐菌对发酵基质中重金属的钝化作用.结果表明:在w(Pb2+)为200 mg/kg条件下,白腐菌对半纤维素、纤维素和木质素等较难降解的有机物表现出最好的降解性能,且对Pb2+的钝化作用很明显,对半纤维素、纤维素和木质素的降解率分别为52.36%,32.29%和44.16%;发酵基质总失重率最高达29.89%;w(腐殖酸碳)达142.01 mg/g. By studying Pb polluted rice straw matrix during fermentation, the degrading function of hemicelluloso, cellulose and lignin and the changing regularity of fermentation substrate and humus carbon were discussed during fermentation under the different Pb^2+ concentration. Then Pb passivated aetion of heavy metal ions in fermentation substrate was also resoarehed during degradation of hemicellulose, cellulose and lignin. The result showed that, under 200 mg/kg Pb^2+ concentration, white-rot fungi had a strong capability in degrading organic such as hemicellulose, cellulose and lignin in rice straw, and had obvious passivation action for Pb^2+ ; the degradation rate of hemicelluloso, cellulose and lignin reached 52.36%, 32.29% and 44.16%, respectively; the weight loss rate of matrix weight and contents of humus carbon reached 29.89% and 142.01 mg/g respectively.
出处 《环境科学研究》 EI CAS CSCD 北大核心 2006年第6期90-93,共4页 Research of Environmental Sciences
基金 国家高技术研究发展计划(863)项目(2004AA649370) 国家重点基础研究发展计划(973)项目(2005CB724203)
关键词 白腐菌 固态发酵 基质 钝化 PB^2+ white-rot fungi solid state fermentation fermentation substrate passivation Pb^2+
  • 相关文献

参考文献13

二级参考文献125

  • 1周敬红,王双飞,韦小英,宋海农,杨崎峰.蔗渣白腐菌处理的电镜观察[J].中国造纸学报,1999,14(1):15-19. 被引量:5
  • 2王双飞,陈嘉翔,余家鸾,余惠生,黄秀瑜.吸附法固定白腐菌处理苇浆漂白废水的研究[J].中国造纸,1995,14(6):44-48. 被引量:15
  • 3高扬,王双飞,陈嘉翔.木素的生物降解及酶的作用[J].纸和造纸,1996,15(2):51-52. 被引量:15
  • 4李慧蓉.白腐真菌的研究进展[J].环境科学进展,1996,4(6):69-77. 被引量:116
  • 5环境监测分析方法编写组.环境监测方法(第一版)[M].北京:中国环境科学出版社,1986..
  • 6Saddler J N. Broanell H H. Clermonl L P. et al. Enzymatic hydrolysis of cellulose and various pretzeated wood fractions Biotech and Bioeng. 1982, 24: 1389-1402.
  • 7Biermann, C J. Essentials J Pulping and Papermaking USA;Academic Press, 1993.
  • 8Sjostrom, E. Wood Chemistry. Fundamentals and Application, 2nd ed. New York/London: Academic Press, 1993.
  • 9Crawford, R. L. Liglin Biodegration and Transformation,N. Y, 1981, 42- 47.
  • 10U. S. A. Leisola and S. Gamia, The Mechanism of Lignin Degradation, Ligno-cellulose:Science, Technology, Development and Use, 1992, 89 - 99.

共引文献140

同被引文献136

引证文献7

二级引证文献86

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部