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现代化工  2018, Vol. 38 Issue (2): 106-109    DOI: 10.16606/j.cnki.issn0253-4320.2018.02.025
  科研与开发 本期目录 | 过刊浏览 | 高级检索 |
好氧颗粒污泥培养及其稳定性研究
黄思琦1, 邓风2, 张睿2, 佘谱颖2, 艾乐仙2
1. 南京工业大学城市建设学院, 江苏 南京 210009;
2. 南京工业大学环境学院, 江苏 南京 210009
Cultivation of aerobic granular sludge and its stability study
HUANG Si-qi1, DENG Feng2, ZHANG Rui2, SHE Pu-ying2, AI Le-xian2
1. College of Urban Construction, Nanjing Tech University, Nanjing 210009, China;
2. Environmental College, Nanjing Tech University, Nanjing 210009, China
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摘要 在序批式反应器SBR中,用部分厌氧颗粒污泥和絮状污泥为种泥,进水为人工配水,采用逐渐减少污泥沉降时间的方法培养出好氧颗粒污泥,并研究温度、进水C/N比对其稳定性的影响。结果表明,好氧颗粒污泥培养时间仅为36 d,颗粒粒径在3 mm左右,SVI值为37 mL/g,沉降性能良好,表面有较多洞眼。低温(10℃)、常温(20℃)对好氧颗粒污泥形态影响不大,但低温条件下出水水质指标波动较大,COD、氨氮、总氮的去除率均低于常温。C/N对COD去除率的影响不明显,但对氮的影响较明显,当C/N ≤ 5时,好氧颗粒污泥开始失稳,TN、氨氮的去除率均低于60%;当C/N比降低至3时,颗粒污泥完全失稳。
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黄思琦
邓风
张睿
佘谱颖
艾乐仙
关键词:  好氧颗粒污泥  SBR  培养  稳定性  温度  C/N    
Abstract: Using partially anaerobic granular sludge and flocculent sludge as seed sludge,aerobic granular sludge is cultivated by gradually decreasing sludge sedimentation time in the sequencing batch reactor (SBR) fed with synthetic wastewater.The effects of different temperature and C/N ratios of influent on the stability of aerobic granular sludge are investigated as well.It is found that the cultivation of aerobic granular sludge needs to spend only 30 days,the average granular sizes of aerobic granular sludge is 3 mm,its sludge volumetric index (SVI) is around 37 mL·g-1,and it exhibits good sedimentation performance.The determining results by scanning electron microscopy show there are many holes on the surface of granular.The impact of low cultivation temperature (10℃) and normal cultivation temperature (20℃) on the shapes of aerobic granular sludge is not significant.Under low cultivation temperature,however,the water quality indexes of effluent are unstable,and the removal rates of COD,NH3-N,TN all are lower than that under normal cultivation temperature.The C/N ratio has not obvious impact on COD removal rate,but has more obvious effect on nitrogen removal rate.The aerobic granular sludge will start to lose stability and the removal rate of TN and NH3-N will be less than 60% when C/N ≤ 5.The aerobic granular sludge loses completely its stability when the C/N reduces to 3.
Key words:  aerobic granular sludge    SBR    cultivation    stability    temperature    C/N
收稿日期:  2017-07-26                出版日期:  2018-02-20
X703  
基金资助: 江苏省住建厅资助项目(2014Z0100)
通讯作者:  邓风(1970-),女,博士,教授,研究方向为污水脱氮除磷及资源化教学和研究工作,通讯联系人,dengf99@126.com。    E-mail:  dengf99@126.com
作者简介:  黄思琦(1992-),女,硕士生,研究方向为污水脱氮除磷及资源化,hsq5447@126.com。
引用本文:    
黄思琦, 邓风, 张睿, 佘谱颖, 艾乐仙. 好氧颗粒污泥培养及其稳定性研究[J]. 现代化工, 2018, 38(2): 106-109.
HUANG Si-qi, DENG Feng, ZHANG Rui, SHE Pu-ying, AI Le-xian. Cultivation of aerobic granular sludge and its stability study. Modern Chemical Industry, 2018, 38(2): 106-109.
链接本文:  
http://www.xdhg.com.cn/CN/10.16606/j.cnki.issn0253-4320.2018.02.025  或          http://www.xdhg.com.cn/CN/Y2018/V38/I2/106
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