A simulation on PSB biofilm formation with considering cell inactivation
A simulation on PSB biofilm formation with considering cell inactivation
复制标题
考虑细胞失活的 PSB 生物膜形成模拟
DOI：
10.1016/j.ijhydene.2013.04.080
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发表时间：
2013-11
影响因子：
7.2
通讯作者：
Yong-Zhong Wang
中科院分区：
文献类型：
--
作者：
Yu-Kang Pu;Qiang Liao;Xun Zhu;Yong-Zhong Wang
建立了光合细菌（PSB）红假单胞菌（Rhodopseudomonas palustriscqk01）生物膜形成的微分离散数学模型。在该模型中，考虑光生物反应器中的光衰减，采用PSB失活和细胞自动机（CA）规则以及先前获得的PSB生长动力学参数来模拟生物膜的生长。利用该模型，研究了光照强度、pH值和初始接种对生物膜形态、活性细胞生物量以及孔隙度、粗糙度和厚度等特征参数的影响。数值结果表明，细胞失活发生在生物膜内，生物膜形态随操作条件的变化而变化。随着生物膜的生长，膜的粗糙度和厚度增大，孔隙率减小。活跃细胞的数量随着时间的推移而增加。同时发现，PSB生物膜形成的最佳条件为光照强度为6000 lx，初始接种量为60，底物溶液pH值为7.0。
A differential-discrete mathematical model is developed to predict the photosynthetic bacteria (PSB)Rhodopseudomonas palustrisCQK 01 biofilm formation. In this model, with the consideration of the light decay in the photobioreactor, PSB inactivation and cellular automata (CA) rules along with the previously obtained growth kinetics parameters of PSB are used to simulate biofilm growth. With this model, the effects of illumination intensity, pH value and initial inoculation on the biofilm morphology, active cell biomass as well as some characteristic parameters such as porosity, roughness and thickness is investigated. Numerical results show that cell inactivation occurs within the biofilm and the biofilm morphology varies with the operating conditions. Moreover, the roughness and thickness increase, but the porosity decreases as the biofilm grows. The amount of active cells is increasing with time. It is also found that the optimal conditions for PSB biofilm formation are the illumination intensity of 6000 lx, the initial inoculation of 60 and the substrate solution pH value of 7.0.
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DOI：
10.1038/ismej.2008.109
发表时间：
2009-03
期刊：
The ISME journal
影响因子：
--
作者：
Rice SA;Tan CH;Mikkelsen PJ;Kung V;Woo J;Tay M;Hauser A;McDougald D;Webb JS;Kjelleberg S
通讯作者：
Kjelleberg S
影响因子：
4.4
作者：
Mai-Prochnow, A;Evans, F;Kjelleberg, S
通讯作者：
Kjelleberg, S
影响因子：
7.2
作者：
T. Laurinavichene;A. Fedorov;M. Ghirardi;M. Seibert;A. Tsygankov
通讯作者：
T. Laurinavichene;A. Fedorov;M. Ghirardi;M. Seibert;A. Tsygankov
影响因子：
7.2
作者：
Lee, CM;Chen, PC;Tung, YC
通讯作者：
Tung, YC
影响因子：
7.2
作者：
Levin, DB;Pitt, L;Love, M
通讯作者：
Love, M