摘要
从污泥中分离出可在舍100mg/L苯酚的LIB培养基上生长的菌株，其中JF-2生长情况最好。通过逐级驯化，JF-2的降解苯酚能力明显提高，可在以苯酚为唯一碳源的培养基中降解苯酚并生长。在接种量为1％时，JF－2在24h内将300mg／L的苯酚完全降解。该菌的最适生长和降解温度为30℃，并能在pH5．5～9内降解苯酚。河水中的天然微生物降解苯酚的能力弱，需7天才可将200mg/L的苯酚完全降解。
Bacterial strains, which can grow on the medium containing 1000mg/L phenol, were isolated from sludge. Among these bacterial strains, JF-2 was most eugenic.JF-2＇s ability of degrading phenol was improved by using step-by-step domesticating method. JF-2 has strong biodegradation ability of phenol, which could grow in the culture medium using phenol as sole carbon source and entirely degrade 300mg/L phenol within 24 hours after inoculation.The optimal temperatures for growth and biodegradation were 30℃, and JF-2 Can degrade phenol with pH 5.5 - 9.0. The experiments proved that phenol degradation in nature is slow. It needs 7 days to degrade 300mg/L of phenol by crude microorganisms.
出处
《四川环境》
2006年第1期8-10,共3页
Sichuan Environment
关键词
苯酚
降解
微生物
驯化
Phenol
degradation
microorganism
domestication
