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利用紫外光催化缓解吡啶对微生物细胞生长的抑制
张雨婷,张永明
作者单位E-mail
张雨婷 上海师范大学生命与环境科学学院环境工程系 zyt3307@126.com 
张永明 上海师范大学生命与环境科学学院环境工程系 zhym@shnu.edu.cn 
摘要:
分别采用葡萄糖和苯酚为基质培养微生物细胞,模拟生活和工业废水的生物处理过程。此时的细胞生长动力学可以用Monod模型描述。当加入吡啶溶液时,微生物细胞的生长都受到了一定程度的抑制,它们的动力学则表现为受抑制的Aiba模型。此时,最大比生长速率(mmax)分别降低了34%和25%。而对含有吡啶的溶液进行紫外光催化之后,对微生物细胞的抑制可以得到很大的缓解,其生长动力学又恢复到无抑制的Monod模型。以葡萄糖为培养基质时,微生物细胞的比生长速率可以恢复到原来的81%。而以苯酚为基质培养时,最大比生长速率则比原来高38%。
关键词:  微生物细胞培养、光催化、生物抑制、动力学
DOI:
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基金项目:上海市地方高校能力建设项目(201607050300)
Alleviating inhibition of pyridine to growth of microbial cell by means of UV photocatalysis
Zhang Yuting,Zhang Yongming
Abstract:
Glucose and phenol as culture medium were respectively simulated multiple and industrial wastewater for culture of microbial cell, for which its kinetics could be described by Monod model. The microorganism growth was obviously inhibited once pyridine was put into the solution of glucose and pyridine and then their kinetics showed Aiba model. Correspondingly, their maximum specific growth rates (mmax) were respectively decreased by 33.8% and 25%. When the pyridine was photo-catalyzed before addition of the solution, the kinetics of microorganism growth were again Monod model, during which the maximum specific growth rates (mmax) reached at 81% for glucose, and especially the maximum specific growth rates (mmax) reached at 138% for the phenol as the medium.
Key words:  culture of microbial cell  photocatalysis  biological inhibition  kinetics