应用隔膜池及分形方法测算金黄杆菌在土壤中的有效扩散系数  

Study of effective diffusion coefficient of Chryseobacterium sp. in saturated soil using membrane cell and fractal dimension model

作　　者：王卓先[1] 黄国强[1] 张瑞玲[1] 

机构地区：[1]天津大学化工学院,天津300072

出　　处：《化工学报》2007年第11期2906-2910,共5页CIESC Journal

基　　金：天津市自然科学基金项目(06YFJMJC06800);国家自然科学基金项目(20276048)~~

摘　　要：Diffusion of microbe plays an important role in microbial restoration of soil and groundwater.For saturated soil,a membrane cell was designed to measure the effective diffusion coefficient.In this study,the theory of fractal dimension was also used to calculate the cell constant of bacteria and the tortuosity factor of soil membrane.In the experiment of KCl diffusion,cell constant of KCl was directly calculated.In the second experiment the model of fractal dimension was used and the cell constant of microbe diffusion was obtained.Using the model of fractal dimension,tortuosity factor was also deduced.The effective diffusion coefficient of bacteria was obtained.Diffusion of microbe plays an important role in microbial restoration of soil and groundwater. For saturated soil, a membrane cell was designed to measure the effective diffusion coefficient. In this study, the theory of fractal dimension was also used to calculate the cell constant of bacteria and the tortuosity factor of soil membrane. In the experiment of KC1 diffusion, cell constant of KC1 was directly calculated. In the second experiment the model of fractal dimension was used and the cell constant of microbe diffusion was obtained. Using the model of fractal dimension, tortuosity factor was also deduced. The effective diffusion coefficient of bacteria was obtained.

关 键 词：细菌 有效扩散系数 饱和土壤 分形 隔膜池 

分 类 号：TQ028.8[化学工程]