Limitation phenomena induced by biofilm formation during hydrocarbon biodegradation
Limitation phenomena induced by biofilm formation during hydrocarbon biodegradation
复制标题
碳氢化合物生物降解过程中生物膜形成引起的限制现象
DOI：
10.1002/jctb.1173
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发表时间：
2005
影响因子：
3.4
通讯作者：
J. Riba
中科院分区：
文献类型：
--
作者：
Claire Joannis‐Cassan;M. Délia;J. Riba
enie des Proc '艾德' es et Mat 'eriaux，Ecole Centrale巴黎，Grande voie des vignes，92295沙特奈-马拉布里Cedex，法国摘要：确定了在原位生物修复过程中烃表面生物膜形成的限制因素。采用液-液体系（烃-水溶液）和由六个填砂固定床柱组成的装置，先后进行了实验室规模的研究。在液-液体系中，结果表明，生物膜的生长受到生物膜内氧和烃的扩散的限制。在生长结束时，生物膜厚度达到80±20µm。在固定床柱中，观察到了额外的困难。首先，在沙子的最深处的氧气分布是困难的：从84%到100%的生物膜生长发生在沙子的上三分之二。然后，发现可供微生物使用的烃的表面是生物膜发展的限制因素。2004年化学工业协会
enie des Proc´ ed´ es et Mat´ eriaux, Ecole Centrale Paris, Grande voie des vignes, 92295 Chatenay-Malabry Cedex, France Abstract: Limiting factors induced by the formation of a biofilm on the hydrocarbon's surface during in-situ bioremediation were identified. A liquid-liquid system (hydrocarbon-aqueous solution) and a device made of six fixed-bed columns packed with sand were successively used on a laboratory-scale. In the liquid-liquid system, it was shown that biofilm growth was limited by the diffusion of both oxygen and hydrocarbon within the biofilm. At the end of growth, the biofilm thickness reached 80±20µm. In the fixed-bed columns, additional difficulties were observed. First, distribution of oxygen in the deepest part of the sand was difficult: from 84 to 100% of the biofilm growth occurred in the upper two-thirds of the sand. Then, the surface of the hydrocarbon available for microorganisms was found to be a limiting factor for the biofilm's development. 2004 Society of Chemical Industry