부직포 여과막 생물반응조를 이용한 질소제거 연구

Abstract

This study was performed by observation of the single nonwoven fabric filter bioreactors with the kind of nitrogen sources and conditional change by the nitrogen sources, and used removal of nitrogen bacteria Pseudomonas aeruginosa. It investigated the nitrogen removal effects by C/N ratio, aerobic/anoxic condition, nitrogen sources and in relationship of activated sludge and the Pseudomonas aeruginosa. According to the results of the experiment, NH4NO3 and NH4Cl were effective to remove NH4-N and NO3-N to use the activated sludge the Pseudomonas aeruginosa together in aerobic condition. The Nitrogen source NH4NO3 was higher removal ratio compared to using a different nitrogen sources to remove NH4-N and NO3-N as well as T-N removal ratio. The nitrogen source NH4NO3 of C/N ratio 5 and aerobic condition was remarkably higher than anoxic condition in removal NH4-N, and NO3-N removal ratio was similar. In Case of using nitrogen source NH4Cl, the C/N ratio 10 was more effective than C/N ratio 5 to removal NH4-N, NO3-N and T-N.