Effective Nitrogen Removal in Low C/N Wastewater with Combined Aerobic-Low DO Biofilm Treatment Process
好氧-低氧生物滤池对低碳氮比污水脱氮研究

The municipal wastewater in China is characterized by low ratio of carbon to nitrogen,which is the key restrictive factor for effective biological removal of nitrogen.In this study,the aerobic-low DO biofilm process was used for the nitrogen removal of municipal wastewater.By means of adjusting inflow ratios of aerobic section to low-DO section,hydraulic retention time(HRT) and inflow ratio of carbon to nitrogen(C/N),the performances of nitrification in aerobic biofilm section and denitrification in low-DO ...