Experimental studies of extremely low C/N wastewater treatment with moving bed biofilm reactor

The extremely low C/N wastewater is treated with moving bed biofilm reactor at the normal temperature.The results show that: With the 40% filling proportion of the packing and about 25 mg/L ammonia nitrogen of the influent,the ammonia nitrogen of the effluent water is stably 4 mg/L,and the removal efficiency of the ammonia nitrogen is above 80%,the nitrification effect is prominent;while the C/N of influent is below 1 the removal rate of TN and COD can reach over 55%,and 60% respectively.These facts show that the moving bed biofilm reactor plays a good role in dealing with the extremely low C/N wastewater.