Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (5): 20-25.

• Environment Science & Technology • Previous Articles     Next Articles

Characteristics and Afecting Factors of Phosphorus Removal in Sequencing-Batch Biofilm Reactor

Fang Qian1  Wei Chao-hai2  Zhang Chao-sheng2  Zhang Ke-fang2  Rong Hong-wei2   

  1. 1.College of Environmental Science and Engineering,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China;2.Institute of Civil Engineering,Guangzhou Univ.,Guangzhou 510405,Guangdong,China
  • Received:2005-07-05 Online:2006-05-25 Published:2006-05-25
  • Contact: 方茜(1973-)，女，在职博士生，广州大学副教授，主要从事污水处理技术和理论的研究 E-mail:gz_fq@126.com
  • About author:方茜(1973-)，女，在职博士生，广州大学副教授，主要从事污水处理技术和理论的研究
  • Supported by:

    国家自然科学基金资助项目(50578044)；广东省自然科学基金资助项目(04009533)；广州市教委科技计划项目(04-2012)

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Abstract:

In the biofilm reactor with continuous flow,the removal eficiency of phosphorus is very low,while those of organics and nitrogen are very high.In order to solve these problems,an alternating anaerobic/aerobic sequen-cing-batch biofilm reactor(SBBR)was built up.By reasonably controlling the anaerobic and aerobic time,the municipal wastewater in Guangzhou with low carbon content was then treated,and the eficiency and characteristics of phosphorus removal were investigated.The results show that the mass concentration of total phosphorus(TP)in the effluent reaches 0.085~0.5 mg/L at a influent TP content of 1.65~7.10ms/L.and that the removal rate reaches more than 90% .Moreover.by the further analyses of the characteristics and controlling factors of anaerobic and aerobic phases in SBBR,it is concluded that the alternating anaerobic/aerobic process is the prerequisite of effective phosphorus removal,that the maximum valid amount of released anaerobic phosphorus is key to the efficiently removal of phosphorus in SBBR due to the good correlation among the valid phosphorus release,the organic removal and the phosphorous removal eficiency.

Key words: municipal wastewater, environmental engineering, sequencing-batch biofilm reactor, biological phos-phorus removal