| 静置/好氧/缺氧序批式反应器（SBR）脱氮除磷效果研究 |
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| 引用本文： | 许德超,陈洪波,李小明,杨麒,曾恬静,罗冠,彭波,汪志龙,谢继慈.静置/好氧/缺氧序批式反应器（SBR）脱氮除磷效果研究[J].环境科学学报,2014,34(1):152-159. |
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| 作者姓名： | 许德超 陈洪波 李小明 杨麒 曾恬静 罗冠 彭波 汪志龙 谢继慈 |
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| 作者单位： | 1. 湖南大学环境科学与工程学院, 长沙 410082;2. 湖南大学环境生物与控制教育部重点实验室, 长沙 410082;1. 湖南大学环境科学与工程学院, 长沙 410082;2. 湖南大学环境生物与控制教育部重点实验室, 长沙 410082;1. 湖南大学环境科学与工程学院, 长沙 410082;2. 湖南大学环境生物与控制教育部重点实验室, 长沙 410082;1. 湖南大学环境科学与工程学院, 长沙 410082;2. 湖南大学环境生物与控制教育部重点实验室, 长沙 410082;1. 湖南大学环境科学与工程学院, 长沙 410082;2. 湖南大学环境生物与控制教育部重点实验室, 长沙 410082;1. 湖南大学环境科学与工程学院, 长沙 410082;2. 湖南大学环境生物与控制教育部重点实验室, 长沙 410082;1. 湖南大学环境科学与工程学院, 长沙 410082;2. 湖南大学环境生物与控制教育部重点实验室, 长沙 410082;1. 湖南大学环境科学与工程学院, 长沙 410082;2. 湖南大学环境生物与控制教育部重点实验室, 长沙 410082;1. 湖南大学环境科学与工程学院, 长沙 410082;2. 湖南大学环境生物与控制教育部重点实验室, 长沙 410082 |
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| 基金项目： | 国家自然科学基金资助项目（No. 51078128，51278175） |
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| 摘 要： | 以静置段代替传统厌氧段,采用后置缺氧方式,考察了静置/好氧/缺氧序批式反应器(SBR)(R1)的生物脱氮除磷(BNR)性能,并与传统厌氧/好氧/缺氧序批式反应器(SBR)(R2)进行对比.两反应器进水乙酸钠、氨氮(NH+4-N)及磷酸盐(PO3-4-P)浓度均分别为350 mg·L-1(以COD计)、40 mg·L-1及12 mg·L-1,水力停留时间(HRT)为12 h.研究结果表明,R1长期运行中磷的去除率与R2相当,分别为92.4%和92.1%,而总氮(TN)去除率则较R2高,分别为83.5%和77.0%.R1静置段省去搅拌但仍能起到厌氧段的作用,为好氧快速摄磷奠定了基础,同时R1缺氧段发生反硝化摄磷,使出水磷降至0.91 mg·L-1.好氧段内R1发生了同步硝化-反硝化(SND),贡献了18.0%的TN去除量,R2也存在SND,但脱氮贡献率较少,仅为9.8%.R1和R2后置缺氧反硝化均以糖原驱动,反硝化速率分别为0.98、0.84 mg·g-1·h-1(以每g VSS产生的N(mg)计),出水TN分别为6.62、9.21 mg·L-1.研究表明,静置段代替传统厌氧段后,可获得更好的脱氮效果,且工艺更为简化.
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| 关 键 词： | 静置段 后置缺氧 生物脱氮除磷(BNR) 同步硝化-反硝化 糖原 |
| 收稿时间： | 2013/4/11 0:00:00 |
| 修稿时间： | 2013/6/30 0:00:00 |
Biological phosphorus and nitrogen removal in a sequencing batch reactor (SBR) operated in static/aerobic/anoxic regime |
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| XU Dechao,CHEN Hongbo,LI Xiaoming,YANG Qi,ZENG Tianjing,LUO Guan,PENG Bo,WANG Zhilong and XIE Jici.Biological phosphorus and nitrogen removal in a sequencing batch reactor (SBR) operated in static/aerobic/anoxic regime[J].Acta Scientiae Circumstantiae,2014,34(1):152-159. |
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| Authors: | XU Dechao CHEN Hongbo LI Xiaoming YANG Qi ZENG Tianjing LUO Guan PENG Bo WANG Zhilong and XIE Jici |
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| Institution: | 1. College of Environmental Science and Engineering, Hunan University, Changsha 410082;2. Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082;1. College of Environmental Science and Engineering, Hunan University, Changsha 410082;2. Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082;1. College of Environmental Science and Engineering, Hunan University, Changsha 410082;2. Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082;1. College of Environmental Science and Engineering, Hunan University, Changsha 410082;2. Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082;1. College of Environmental Science and Engineering, Hunan University, Changsha 410082;2. Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082;1. College of Environmental Science and Engineering, Hunan University, Changsha 410082;2. Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082;1. College of Environmental Science and Engineering, Hunan University, Changsha 410082;2. Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082;1. College of Environmental Science and Engineering, Hunan University, Changsha 410082;2. Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082;1. College of Environmental Science and Engineering, Hunan University, Changsha 410082;2. Key Laboratory of Environmental Biology and Pollution Control, Ministry of Education, Hunan University, Changsha 410082 |
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| Abstract: | A sequencing batch reactor (SBR) (R1) with static/aerobic/anoxic regime was used for biological nutrient removal (BNR). To investigate the feasibility of static phase as a substitute for conventional anaerobic phase, the performance of R1 was compared to anaerobic/aerobic/anoxic SBR (R2). The concentrations of influent acetate, ammonia nitrogen (NH4+-N) and phosphate (PO43--P) in both reactors were 350 mg·L-1, 40 mg·L-1and 12 mg·L-1, respectively, and the hydraulic retention time (HRT) was 12 h. The experimental results demonstrated that the phosphorus (P) removal efficiency in R1 (92.4%) was comparative to R2 (92.1%). However, total nitrogen (TN) removal efficiency of R1 (83.5%) was higher than that of R2 (77.0%). Static phase in R1 still worked as anaerobic phase without stirring, which contributed to rapid P uptake in aerobic phase. The effluent P of 0.91 mg·L-1 was achieved through denitrifying P removal in anoxic phase. Simultaneous nitrification and denitrification (SND) in aerobic phase contributed 18.0% of TN elimination in R1, much higher than that of R2 (9.8%). In the post-anoxic phase, microorganisms utilized glycogen as carbon source to drive denitrification, exhibiting denitrification rates (DNRs) of 0.98, 0.84 mg·g-1·h-1 and 6.62, 9.21 mg·L-1 of effluent TN in R1 and R2, respectively. Better nitrogen removal efficiency was obtained with anaerobic phase replaced by static phase, and the configuration was further simplified. |
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| Keywords: | static phase post-anoxic biological nutrient removal (BNR) simultaneous nitrification and denitrification glycogen |
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