Yufei Li
Harbin Institute of Technology
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Publication
Featured researches published by Yufei Li.
international conference on bioinformatics and biomedical engineering | 2010
Hongjun Han; Bing Wang; Yufei Li; Hongbo Hu
The influencing factors of simultaneous nitrification and denitrification (SND) was investigated in this study. The experiment was carried out with synthetic wastewater in Sequencing batch reactor (SBR). Some effect factors and mechanism of SND were studied through continuous running of SBR process. Optimum operation condition of SND was obtained in the experiment, and it was found that the removal efficiency of COD and TN reached 90% and 83%~95% respectively when influent CODCr concentration of 200~300mg/L, NH3-N of 25~35mg/L, TN of 40mg/L with temperature of 18~25, C/N ratio of 12, and DO in the range of 0.5~1.5mg/L. Further more, SND can overcome the phenomena of insufficient alkalinity in wastewater, and that alkalinity yield by denitrification can fill up descend of PH value, which resulted in the degradation of organic and nitrogen compounds via microorganism. Thus, simultaneous nitrification and denitrification can be achieved by SBR process at normal temperature.
international conference on bioinformatics and biomedical engineering | 2010
Hongjun Han; Hongbo Hu; Chunyan Xu; Yufei Li
The impact of temperature on nitrification in biological aerated filter (BAF), process was studied in order to improve the nitrification performance in municipal wastewater treatment. When the water temperature dropped, the nitrification performance obviously deteriorated. Effects of important process variables such as DO concentration and backwash period to nitrification performance were investigated when the water temperature dropped from 23℃ to 9℃. The study shown that by raising the DO concentration to enhance nitrification performance was not available in low water temperature environment and by extending the backwash period to enhance nitrification was available. The effluent NH4-N concentration reduced from 8mg/L to 6.5mg/L, when the backwash period extended from 48 hours to 65 hours and the the effluent concentration of SS and head loss were all in a permissible range.
Laser Physics Letters | 2008
Yufei Li; Yulei Wang; Baoquan Yao
Laser Physics Letters | 2009
Z. G. Wang; C.W. Song; Yufei Li; Y. L. Ju; Y. Z. Wang
Laser Physics Letters | 2008
Yufei Li; Yulei Wang; Baoquan Yao; Yuqiang Liu
Laser Physics Letters | 2008
C. T. Wu; Y. L. Ju; Z. G. Wang; Yufei Li; H Y Ma; Yulei Wang
Archive | 2010
Yufei Li; Linghan Zhang; Shan Lin; Hongjun Han; Hongbo Hu
Archive | 2009
Hongjun Han; Yufei Li; Weidong Wang; Huiqin Cong; Yingwei Wang; Wencheng Ma; Hongbo Hu; Linghan Zhang; Shan Lin
Archive | 2011
Hongjun Han; Hongbo Hu; Wencheng Ma; Wei Wang; Bing Wang; Huiqiang Li; Chunyan Xu; Yufei Li; Yinsong Liu
Desalination and Water Treatment | 2011
Hongbo Hu; Hongjun Han; Wei Wang; Bing Wang; Yufei Li