Muñoz R, Rolvering C, Guieysse B, Mattiasson B
Department of Biotechnology, Center for Chemistry and Chemical Engineering, Lund University, Sweden.
Water Sci Technol. 2005;52(8):265-71.
The aerobic degradation of phenanthrene by a Pseudomonas migulae strain under classical mechanical aeration and under photosynthetic oxygenation (using a Chlorella sorokiniana strain) in a two-phase partitioning bioreactor (TPPB) constructed with silicone oil as organic phase was investigated. When traditional mechanical aeration was used, an increase in the aeration and/or in the agitation rate enhanced phenanthrene biodegradation. Thus, phenanthrene removal rates (based on the total liquid volume of cultivation) ranged from 22 +/- 1 to 36 +/- 2 mg/l h at 100 rpm and 1 vvm and 400 rpm and 3 vvm, respectively. On the other hand, during phenanthrene biodegradation using the algal-bacterial microcosm a maximum rate of 8.1 +/- 1.2 mg/l h at 200 rpm and 8000 lux of illuminance was achieved.
研究了在以硅油为有机相构建的两相分配生物反应器（TPPB）中，米氏假单胞菌菌株在传统机械曝气和光合充氧（使用索氏小球藻菌株）条件下对菲的好氧降解情况。当使用传统机械曝气时，曝气和/或搅拌速率的增加会提高菲的生物降解率。因此，在100 rpm和1 vvm以及400 rpm和3 vvm条件下，基于培养总液体体积的菲去除率分别为22±1至36±2 mg/l·h。另一方面，在使用藻菌微生态系统进行菲生物降解的过程中，在200 rpm和8000勒克斯光照强度下实现了最大降解速率8.1±1.2 mg/l·h。
