Simulation of multispecies biofilm development in three dimensions

被引：70

作者：

Noguera, DR ^{[1
]}

Pizarro, G

Stahl, DA

Rittmann, BE

机构：

[1] Univ Wisconsin, Dept Civil & Environm Engn, Madison, WI 53706 USA

[2] Northwestern Univ, Dept Civil Engn, Evanston, IL 60208 USA

来源：

WATER SCIENCE AND TECHNOLOGY | 1999年 / 39卷 / 07期

关键词：

anaerobic biofilms; biofilm; methanogenesis; sulfate reducing bacteria; 3D modeling;

D O I：

10.1016/S0273-1223(99)00159-6

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A mathematical model to simulate the three-dimensional growth of multispecies anaerobic biofilms is developed and tested with a two-species biofilm composed of sulfate-reducing bacteria and methanogens. The numerical approach is based on the separation of biological, physical, and chemical phenomena so that quasi-steady-state conditions can be used in the solution. Simulations with Desulfovibrio vulgaris and Methanobacterium formicicum result in the formation of a biofilm heterogeneous in structure and composition. The model predicts different biofilm structures in the absence of sulfate, when a syntrophic association between the two organisms develops, and in the presence of sulfate, when the two organisms compete for the available hydrogen. (C) 1999 IAWQ Published by Elsevier Science Ltd. All rights reserved.

引用

页码：123 / 130

页数：8

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