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Indexed by:会议论文

Date of Publication:2008-05-16

Included Journals:EI

Page Number:3061-3064

Abstract:A novel airlift combined biofilm reactor (ACBR) used for wastewater nitrogen removal was developed and the influence of influent C/N ratio and aeration rate on nitrification and denitrification was studied. The experimental results indicated that nitrifying efficiency declined with the increased influent C/N ratio. Increasing the aeration rate could improve the DO concentration in the aerobic zone and buffering zone and decrease the impact of organic carbon oxidization on nitrification. About 95% of COD and 80% of nitrogen removal were achieved when the influent C/N ratio was 2.7-5.3 and constant influent nitrogen loading rate 0.01kgN/(m3.d). © 2008 IEEE.