污染控制技术及原理
殷培杰,陈威,孙红文.温度对底泥中硝基苯的自然衰减及强化降解的影响[J].环境科学学报,2007,27(8):1288-1291
温度对底泥中硝基苯的自然衰减及强化降解的影响
- The effect of temperature on natural attenuation and bio-augmented degradation of nitrobenzene-contaminated sediments
- 基金项目：国家自然科学基金(No.20407013);南开大学青年教师启动基金(No.J02020)
- 作者
- 单位
- 殷培杰
- 南开大学环境科学与工程学院城市生态环境修复与污染防治(天津市)重点实验室, 天津 300457
- 陈威
- 南开大学环境科学与工程学院城市生态环境修复与污染防治(天津市)重点实验室, 天津 300457
- 孙红文
- 南开大学环境科学与工程学院城市生态环境修复与污染防治(天津市)重点实验室, 天津 300457
- 摘要：利用人工配制的2种不同浓度(1000和100μg·kg-1)的硝基苯污染底泥,研究了4℃和20℃2种温度条件下硝基苯的自然衰减和生物强化降解情况.结果表明,2种浓度的硝基苯在4℃时有氧、缺氧条件下均无降解,20℃时有氧和缺氧条件下均有明显的降解;添加筛选出的混合降解菌可快速降解处于泥浆状的硝基苯.因而,对于受到硝基苯污染的底泥修复可充分考虑其自然衰减能力,降低修复成本.
- Abstract：Temperature is key factor for natural attenuation of nitrobenzene. The present study investigated the nitrobenzene of natural attenuation and nitrobenzene of bio-argumentation at 4℃and 20℃. The results showed that two kinds concentration of nitrobenzene (1000 and 100μg·kg-1 ) were not degraded under aerobic and anoxic condition at 4℃, however they were significantly degraded at 20℃. Applying the screened nitrobenzene degrading microorganisms quickly degraded the high concentration of nitrobenzene (1000 μg·kg-1). Therefore, remediation of mud with nitrobenzene should fully consider ability of natural attenuation.
- Key words：nitrobenzene natural attenuation bio-augmentation
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