[1]李亚茹,张雅芳,吕婷婷,等.芘-铬(Ⅵ)复合污染的共脱毒菌株的分离鉴定及特性研究[J].温州大学学报(自然科学版),2020,(03):021-28.
 LI Yaru,ZHANG Yafang,LV Tingting,et al.Isolation, Identification and Characterization of Detoxification Bacterial Strains with Ability of Removing Pyrene-Cr (Ⅵ) Combined Pollution[J].Journal of Wenzhou University,2020,(03):021-28.
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芘-铬(Ⅵ)复合污染的共脱毒菌株的分离鉴定及特性研究
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《温州大学学报》(自然科学版)[ISSN:1674-3563/CN:33-1344/N]

卷:
期数:
2020年03期
页码:
021-28
栏目:
生物学
出版日期:
2020-08-25

文章信息/Info

Title:
Isolation, Identification and Characterization of Detoxification Bacterial Strains with Ability of Removing Pyrene-Cr (Ⅵ) Combined Pollution
作者:
李亚茹张雅芳吕婷婷顾俊侠董新姣
温州大学生命与环境科学学院,浙江温州 325035
Author(s):
LI Yaru ZHANG Yafang LV Tingting GU Junxia DONG Xinjiao
College of Life and Environmental Science, Wenzhou University, Wenzhou, China 325035
关键词:
芘-铬(Ⅵ)复合污染细菌菌株鉴定性能
Keywords:
Pyrene-Cr (Ⅵ) Combined Pollution Bacterial Strains Identification Ability
分类号:
X172
文献标志码:
A
摘要:
成本低廉、高效、环境友好的微生物修复技术,是治理多环芳烃-重金属复合污染的良策.从温州市平阳县水头镇分离得到两株芘-铬(Ⅵ)共脱毒菌株F1和Z6,鉴定为Raoultella sp.和Serratia sp.,并对菌株的共脱毒性能进行研究.结果表明:F1菌株和Z6菌株的最适脱毒条件:温度30℃、pH 9.0,F1菌株接种量30%,Z6菌株接种量50%,两菌株在共脱毒时铬(Ⅵ)对芘降解有抑制,但芘对铬(Ⅵ)还原有轻微促进作用.Z6菌株的共脱毒能力优于F1菌株,优化条件后Z6菌株将20 mg/L铬(Ⅵ)完全还原,同时将50 mg/L芘降解率达60%,具有更大的应用潜力.
Abstract:
The low-cost, highly efficient, and environmentally friendly microbial remediation technology is a good strategy for treating combined pollution of PAHs and heavy metals. Two detoxification bacterial strains (F1 and Z6) with the ability of removing pyrene-Cr (Ⅵ) combined pollution, which were isolated from the area of Shuitou Town, Pingyang, Wenzhou, were identified as Raoultella sp. and Serratia sp.. In addition, their ability of removing pyrene-Cr (Ⅵ) combined pollution was studied. Results showed that the optimal conditions of simultaneously removing pyrene and Cr (Ⅵ) for the stain F1 was pH 9.0, 30℃ and the inoculation amount of 30%, and that for the strain Z6 was pH 9.0, 30℃ and the inoculation amount of 50%. For both strains in the process of detoxification, Cr (Ⅵ) negatively affected pyrene biodegradation, while pyrene could slightly promote Cr (Ⅵ) reduction. In short, the strain Z6 has a better efficiency than the strain F1 in detoxification, and could completely reduce 20 mg/L Cr (Ⅵ) and biodegrade 60% of 50 mg/L pyrene simultaneously under the optimum conditions, thus has a greater potential for practical applicatio.

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备注/Memo

备注/Memo:
收稿日期:2020-04-17
基金项目:浙江省公益技术研究计划项目(LGF18E080013);温州市科技计划项目(S20180011)
作者简介:李亚茹(1994- ),女,山东淄博人,硕士研究生,研究方向:环境微生物
更新日期/Last Update: 2020-08-25