苯酚降解菌的分离及培养特性研究

Isolation and cultivate characterization of bacteria capable of degrading phenol

对南充市郊炼油厂活性污泥进行富集 ,驯化筛选得到 2株能以苯酚作为唯一碳源和能源生长的菌株 ,编号为S1、S2 ,两菌株可耐 1 0 ,0 0 0mg L左右的苯酚浓度。实验得出其最佳生长条件为pH 7～ 8,温度 2 5℃～ 30℃ ,在适宜条件下 ,对苯酚有较好的降解能力 ,而且苯对两菌株的生长表现为抑制作用。

Two strains of bacteria which can highly degrade phenol and grow with phenol as sole carbon and energy sources have been obtained by enriching screening and acclimatizing the strains in active sludge from a refinery.These two bacteria can tolerate phenol 0f 10,000mg/L,The optimum culture conditions are pH7～8,25℃～35℃and aeration.At the optimum conditions their degrading capacities are very efficient and that benzene restrain the growth of these two bacteria.