| 碳源类型对A~2O系统脱氮除磷的影响 |
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| 引用本文： | 吴昌永,彭永臻,彭轶,陈志强,姜涛.碳源类型对A~2O系统脱氮除磷的影响[J].环境科学,2009,30(3). |
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| 作者姓名： | 吴昌永 彭永臻 彭轶 陈志强 姜涛 |
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| 作者单位： | 1. 哈尔滨工业大学市政环境工程学院,哈尔滨,150090
2. 哈尔滨工业大学市政环境工程学院,哈尔滨,150090;北京工业大学环境与能源工程学院,北京市水质工程与水环境恢复工程重点实验室,北京,100022 |
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| 基金项目： | 北京市教委科技创新平台项目，城市水资源与水环境国家重点实验室开放研究项目 |
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| 摘 要： | 采用52.5 L的A2O反应器,以乙酸和丙酸分别作为进水唯一碳源,系统研究了进水碳源类型对脱氮除磷和代谢过程的影响.结果表明,在进水COD为250 mg/L左右,NH+4-N为52 mg/L左右的条件下,原水碳源类型对TN的去除影响不大,系统TN去除率均在65%左右.进水碳源类型对TP的去除及相应污泥中PHA的类型、含量和代谢及糖原的变化影响较大.乙酸为唯一碳源时,厌氧区放磷浓度较高,污泥中PHA的成分主要为PHB和PHV,两者在厌氧区的合成量差别不大,PHB在随后的反应过程中变化较大,对除磷代谢过程起主要作用,而PHV的变化较小.丙酸作为进水唯一碳源时,厌氧区的放磷浓度偏低,主要合成PHV,几乎不含PHB,PHV在随后吸磷过程中浓度变化较大,对除磷代谢起主要作用,而且出水TP浓度偏低.碳源类型对污泥中糖原的代谢也有影响,乙酸为碳源时糖原的含量高,变化范围也较大,丙酸为碳源时糖原的变化幅度较小.在同步脱氮除磷系统中,与乙酸相比,丙酸是一种更合适的碳源.
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| 关 键 词： | 污水处理 脱氮除磷 乙酸 丙酸 碳源 A2O系统 |
Influence of Carbon Source on Biological Nutrient Removal in A~2O Process |
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| WU Chang-yong,PENG Yong-zhen,PENG Yi,CHEN Zhi-qiang,JIANG Tao.Influence of Carbon Source on Biological Nutrient Removal in A~2O Process[J].Chinese Journal of Environmental Science,2009,30(3). |
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| Authors: | WU Chang-yong PENG Yong-zhen PENG Yi CHEN Zhi-qiang JIANG Tao |
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| Institution: | 1;2;1.School of Municipal and Environmental Engineering;Harbin Institute of Technology;Harbin 150090;China;2.Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering;College of Environment and Energy Engineering;Beijing University of Technology;Beijing 100022;China |
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| Abstract: | A 52.5 L pilot-scale biosystem,based on A~2O configaration,was employed to investigate the effect of carbon source on biological nutrient removal and its metabolism process.Acetic acid and propionic acid were selected as the sole carbon source in different step.The COD was about 250(mg/L) and NH~+_4N was about 52(mg/L) in the influent.The results showed that the removal efficiency of TN was about 65% and without any relationship to the carbon source.The TP viariation along the reactor,PHA formation and cont... |
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| Keywords: | wastewater treatment biological nitrogen and phosphorus removal acetic acid propionic acid carbon source A~2O process |
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