| Ochrobactrum anthropi 对苯胺的降解特性 |
| 摘要点击 1918 全文点击 2043 投稿时间：1998-01-08 |
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| 中文关键词 苯胺 降解速率 专性好氧菌 振荡速率 底物浓度 接种量 |
| 英文关键词 aniline biodegradation rate obligate aerobic bacteria oscillation rate substrate concentration inoculation amount |
| DOI 10.13227/j.hjkx.19980506 |
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| 中文摘要 |
| 利用自行筛选驯化的苯胺降解菌人苍白杆菌(Ochrobactrum anthropi)对影响苯胺降解的各种主要因素进行了研究,发现降解菌在35℃,pH6.5下及苯胺初始浓度200-800mg/L的范围内保持高活性,最大降解速率达到10.05mg·(L·h)-1.振荡速率在0-120r·min-1时,苯胺降解速率线性增加,振荡速率大于120r·min-1时,苯胺降解速率趋于稳定。底物浓度在0-200mg/L内,平均降解速率急剧上升；底物浓度在200-800mg/L内,生物保持较高活性,平均降解速率为9.30-10.05mg·(L·h)-1;底物浓度大于800mg/L时,平均降解速率线性下降。当接种量(菌县液/反应液)为20ml/100ml时苯胺的降解是高效与经济的。 |
| 英文摘要 |
| The main factors affecting the biodegradation rate of aniline using Ochrobactrum anthropi from screening and acclimating have been studied.The results indicated that the maximum rate biodegradation is 10.05mg·(L·h)-1 when the initial concentration of aniline are between 200 and 800mg/L at pH6.5 and 35℃.The biodegradation ratio increases liner when the oscillation rate is 0—120r·min-1 ,and it will be steady when the oscillation rate is beyond 120 r·min-1 .The average degradation rate increases rapidly when the substrate concentration is between 0 and 200 mg/L,and it will decrease liner when the concentration is beyond 800mg/L.It is efficient that 20ml bacteria degrade 100ml solution containing aniline. |
