| 表面活性剂对Bacillus pumilus strain Bap9 降解苯并[a]芘的影响 |
| |
| 引用本文： | 朱婷婷,倪晋仁.表面活性剂对Bacillus pumilus strain Bap9 降解苯并[a]芘的影响[J].环境工程学报,2012,6(9):3344-3348. |
| |
| 作者姓名： | 朱婷婷 倪晋仁 |
| |
| 作者单位： | 1. 深圳市环境科学研究院,国家环境保护饮用水水源地管理技术重点实验室,深圳518001 北京大学深圳研究生院环境与能源学院,城市人居环境科学与技术重点实验室,深圳518055
2. 北京大学深圳研究生院环境与能源学院,城市人居环境科学与技术重点实验室,深圳518055 |
| |
| 基金项目： | "十一五"国家科技支撑计划项目(2006BAB04A14) |
| |
| 摘 要： | 研究了非离子型表面活性剂Triton X-100(TX-100)和Tween80(TW-80)对苯并a]芘的增溶特性及对苯并a]芘高效降解菌Bacillus pumilus strain Bap9生长的影响,结果表明,2种表面活性剂对苯并a]芘均有良好的增溶效果,均能作为碳源和能源被菌株Bap9所利用,TX-100增溶能力和增殖能力相对更强;不同浓度的TX-100对菌株降解苯并a]芘的影响不同,当浓度为1 000 mg/L时,对降解的促进作用最强,可将苯并a]芘降解率提高20.8%;在苯并a]芘降解过程中,TX-100亦能作为碳源被菌株Bap9利用,不产生二次污染,因此可用于苯并a]芘污染环境的生物修复。
|
| 关 键 词： | 苯并[a]芘 非离子表面活性剂 Bacillus pumilus strain Bap9 生物降解 |
| 修稿时间： | 5/2/2011 12:00:00 AM |
Effect of surfactants on biodegradation of benzo[a]pyrene by Bacillus pumilus strain Bap9 |
| |
| Zhu Tingting and Ni Jinren.Effect of surfactants on biodegradation of benzo[a]pyrene by Bacillus pumilus strain Bap9[J].Techniques and Equipment for Environmental Pollution Control,2012,6(9):3344-3348. |
| |
| Authors: | Zhu Tingting and Ni Jinren |
| |
| Institution: | State Environmental Protection Key Laboratory of Drinking Water Source Management and Technology, Shenzhen Academy of Environmental Science, Shenzhen 518001, China;Key Laboratory for Urban Habitat Environmental Science and Technology, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, China;Key Laboratory for Urban Habitat Environmental Science and Technology, School of Environment and Energy, Peking University Shenzhen Graduate School, Shenzhen 518055, China |
| |
| Abstract: | The impacts of two nonionic surfactants (TX-100 and TW-80) on the solubility of benzoa]pyrene(BaP) and biomass production of Bacillus pumilus strain Bap9 were studied. Results show that TX-100 and TW-80 were not toxic to the BaP-degrading strain Bap9, and both of them could greatly increase the solubility of BaP when their concentration were above the critical micelle concentration (CMC). TX-100 is more effective than TW-80 in increasing solubility of BaP and proliferation of strain Bap9. The effect of degradation was best when the concentration of TX-100 reached 1000 mg/L, which increased 20.8% of the degradation rate. During the biodegradation of BaP, TX-100 could be utilized by the strain Bap9 as carbon source and would not produce any secondary pollution. As a result, TX-100 has considerable potential for the bioremediation of BaP in polluted soils and water. |
| |
| Keywords: | benzo[a]pyrene (BaP) nonionic surfactant Bacillus pumilu strain Bap9 biodegradation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《环境工程学报》浏览原始摘要信息 |
| 点击此处可从《环境工程学报》下载免费的PDF全文 |
|
