1、外文标题: Individual or synchronous biodegradation of di-n-butyl phthalate and phenol by Rhodococcus ruber strain DP-2. 外文作者: Z He , C Niu , Z Lu 文献出处: Journal of Hazardous Materials , 2014 , 273 (3) :104-109 英文 2903 单词, 17889 字符,中文 4658 汉字。 此文档是外文翻译成品,无需调整复杂的格式哦!下载之后直接可用,方便快捷!只需
2、二十多元。 原文: Individual or synchronous biodegradation of di-n-butyl phthalate and phenol by Rhodococcus ruber strain DP-2. h i g h l i g h t s A Rhodococcus ruber strain degraded DBP and phenol. Degradation kinetics of DBP or phenol fit modified first-order models. Degradation interaction b
3、etween DBP and phenol was studied by strain DP-2. The degradation genes transcriptional were quantified by RT-qPCR. a b s t r a c t The bacterial strain DP-2, identified as Rhodococcus ruber, is able to effectively degrade di-n-butyl phthalate (DBP) and phenol. Degradation kinetics of DBP and phenol
4、 at different initial concentrations revealed DBP and phenol degradation to fit modified first-order models. The half-life of DBP degradation ranged from 15.81 to 27.75 h and phenol degradation from 14.52 to 45.52 h under the initial concentrations of600 1200 mg/L. When strain DP-2 was cultured with
5、 a mixture of DBP (800 mg/L) and phenol (700 mg/L),DBP degradation rate was found to be only slightly influenced; however, phthalic acid (PA) accumulated, and phenol degradation was clearly inhibited during synchronous degradation. Transcriptional levelsof degradation genes, phenol hydroxylase (pheu
6、) and phthalate 3,4-dioxygenase (pht), decreased significantly more during synchronous degradation than during individual degradation. Quantitative estimation of individual or synchronous degradation kinetics is essential to manage mixed hazardous compounds through biodegradation in industrial waste disposal. Introduction Human industrial activities generate huge amounts of industrial waste containing different hazardous organic pollutants, and the capability of bacteria to mineralize these toxic chemicals from indus