| 硝酸盐还原条件下不同碳源对萘生物降解特性的影响 |
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| 引用本文： | 全向春,王文燕,何孟常,林春野.硝酸盐还原条件下不同碳源对萘生物降解特性的影响[J].环境科学研究,2009,22(3):261-265. |
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| 作者姓名： | 全向春 王文燕 何孟常 林春野 |
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| 作者单位： | 北京师范大学 环境学院,环境模拟与污染控制国家重点联合实验室,北京 100875 |
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| 基金项目： | 国家自然科学基金，国家重点基础研究发展规划(973计划) |
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| 摘 要： | 以萘为模型化合物，研究硝酸盐还原条件下萘的反硝化降解特性，考察了乙酸盐、丙酸盐、丁酸盐、戊酸盐、乳酸盐及葡萄糖作为补充碳源对萘反硝化降解效果的影响，以及不同补充碳源及初始ρ(萘)对反硝化过程硝酸盐还原活性的影响. 结果表明:当初始ρ(萘)为20 mg/L时，乙酸盐、丙酸盐、葡萄糖和丁酸盐的存在对萘的反硝化降解具有促进作用，而戊酸盐和乳酸盐的存在对其具有抑制作用. 补充碳源存在下，萘的反硝化降解速率顺序为乙酸盐>丙酸盐>葡萄糖>丁酸盐>无补充碳源>戊酸盐>乳酸盐，且降解过程符合一级反应动力学. 补充碳源与萘共基质系统中，随着初始ρ(萘)的升高，萘的去除率和硝酸盐的还原活性均有所降低.
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| 关 键 词： | 补充碳源 萘 硝酸盐还原 生物降解 |
| 收稿时间： | 2008/4/20 0:00:00 |
| 修稿时间： | 2008/9/1 0:00:00 |
Effects of Different Carbon Sources on the Biodegradation of Naphthalene under Nitrate-Reducing Conditions |
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| QUAN Xiang-chun,WANG Wen-yan,HE Meng-chang and LIN Chun-ye.Effects of Different Carbon Sources on the Biodegradation of Naphthalene under Nitrate-Reducing Conditions[J].Research of Environmental Sciences,2009,22(3):261-265. |
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| Authors: | QUAN Xiang-chun WANG Wen-yan HE Meng-chang and LIN Chun-ye |
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| Institution: | State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Beijing Normal University, Beijing 100875, China |
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| Abstract: | As a model compound,naphthalene biodegradation under nitrate-reducing conditions was studied,and the effects of additional carbon sources including acetate,propionate,butyrate,pentanoate,lactate and glucose on nitrate-reducing activity and naphthalene biodegradation efficiency were investigated.The effects of different initial naphthalene concentrations on nitrate-reducing activity were also investigated.Results showed that naphthalene biodegradation at an initial concentration of 20(mg/L) was promoted by t... |
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| Keywords: | supplemental carbon source naphthalene nitrate-reducing biodegradation |
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