| 碳源类型对污水生物处理过程中氧化亚氮释放的影响 |
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| 引用本文： | 赵聪聪,张建,胡振,谢慧君,张婷婷,李一冉. 碳源类型对污水生物处理过程中氧化亚氮释放的影响[J]. 环境科学学报, 2011, 31(11): 2354-2360 |
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| 作者姓名： | 赵聪聪 张建 胡振 谢慧君 张婷婷 李一冉 |
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| 作者单位： | 1. 山东大学环境科学与工程学院,济南,250100
2. 山东大学环境研究院,济南,250100 |
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| 基金项目： | 国家自然科学基金(No.21007032);山东大学自主创新基金(No.2009JQ009);国家水专项(No. 2009ZX07210-009-04) |
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| 摘 要： | 碳源是污水生物处理过程中N2O释放的重要影响因素.本试验以不同碳源（葡萄糖、乙酸钠和淀粉）条件下的SBR反应器为研究对象,分析了碳源类型对于N2O释放的影响作用.结果发现,N2O释放主要发生在好氧段,且释放总量受碳源影响,以乙酸钠为碳源的反应器产生的N2O最多,释放速率最大,其次为葡萄糖,淀粉最少,N2O转化率分别为7...
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| 关 键 词： | 污水生物处理 氧化亚氮 碳源 硝化 反硝化 DGGE |
| 收稿时间： | 2011-02-21 |
| 修稿时间： | 2011-04-01 |
Effect of carbon source types on nitrous oxide emission during wastewater treatment |
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| ZHAO Congcong,ZHANG Jian,HU Zhen,XIE Huijun,ZHANG Tingting and LI Yiran. Effect of carbon source types on nitrous oxide emission during wastewater treatment[J]. Acta Scientiae Circumstantiae, 2011, 31(11): 2354-2360 |
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| Authors: | ZHAO Congcong ZHANG Jian HU Zhen XIE Huijun ZHANG Tingting LI Yiran |
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| Affiliation: | School of Environmental Science and Engineering, Shandong University, Jinan 250100,School of Environmental Science and Engineering, Shandong University, Jinan 250100,School of Environmental Science and Engineering, Shandong University, Jinan 250100,Environmental Research Institute, Shandong University, Jinan 250100,School of Environmental Science and Engineering, Shandong University, Jinan 250100 and School of Environmental Science and Engineering, Shandong University, Jinan 250100 |
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| Abstract: | Carbon source is an important factor affecting the emission of nitrous oxide (N2O) in biological wastewater treatment processes. In this study, the effect of carbon source on N2O emission was evaluated in three sequencing batch reactors (SBRs) acclimated under different carbon sources (i.e. glucose, acetate, and starch). Our results showed that most of the N2O emission occurred during the aerobic phase. Carbon source had an important effect on N2O emission. The highest amount and rate of N2O emission was observed in the SBR acclimated under acetate followed in order by glucose and starch. The conversion rate of N2O was determined to be 7.80%,5.43%,and 2.59%,respectively. According to results from OUR measurements and PCR-DGGE analyses, the dominating population of AOB community (e.g. Nitrosomonas in acetate SBR) was found to considerably change with varying carbon sources. This suggested that the effect of carbon source on N2O emission was most likely attributed to the difference in AOB community and the associated denitrification capability. |
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| Keywords: | biological nitrogen removal nitrous oxide carbon source nitrification denitrification DGGE |
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