摘要
利用自行筛选驯化的苯胺降解菌人苍白杆菌（Ｏｃｈｒｏｂａｃｔｒｕｍａｎｔｈｒｏｐｉ）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．
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.
出处
《环境科学》
EI
CAS
CSSCI
CSCD
北大核心
1998年第5期22-24,共3页
Environmental Science
基金
国家自然科学基金
广东省自然科学基金
关键词
苯胺
降解
专性好氧菌
废水处理
降解菌
aniline,biodegradation rate,obligate aerobic bacteria,oscillation rate,substrate concentration,inoculation amount.
