Study the Effects of Environmental Factors on Simultaneous Nitrification and Denitrification in SBBR
The experiment studies the phenomenon of simultaneous nitrification and denitrification (SND) in SBBR filled with polyurethane as micro-organisms immobilized carriers.Polyurethane fills in SBR as micro-organisms immobilized carriers,formation of a Sequencing Batch Biofilm Reactor (SBBR).Under the anaerobic/aerobic conditions,we studied the effects of C/P,C/N and DO on SND.The results showed that when COD was 400mg/L,C/P was 43.2-50.2,C/N was 9.41～11.9 of the influent,the concentration of DO was 3.31～4.0 lmg/L,the effect of TN removal was good.When C/P was 46.9,C/N was 10.3,the concentration of DO was 3.58mg/L,the removal rate of TN was 83.71％,TN effluent was 6.45mg/L.TN effluent followed by LA standard of Discharge standard of pollutants for municipal wastewater treatment plant.DO concentrations impact the forms of nitrogen in the effluent.C/P,C/N and DO play an important role on SND in SBBR filled with polyurethane.Controlling these factors effectively can inhance the effect of nitrogen removal.
simultaneous nitrification and denitrification (SND) sequencing batch biofilm reactor (SBBR) total nitrogen (TN) dissolved oxygen (DO) polyurethane as micro-organisms immobilized carriers
Yafeng Li Ying Hao Jingbo Yao Ting Zhang
School of Municipal and Environmental Engineering in Shenyang Jianzhu University China China Northeast Municipal Engineering Design and Research Institute China
国际会议
哈尔滨
英文
904-907
2010-07-24（万方平台首次上网日期，不代表论文的发表时间）