| Title |
Comparative study on suspended growth activated sludge vs fixed media activated sludge |
| Authors |
이병헌 ; 김정숙 ( Byung Hun Lee ; Jeong Sook Kim ) |
| Abstract |
The main purpose of this study was to compare the suspened growth activated sludge with the fixed media activated sludge by evaluating organic removal efficiencies, nitrogen removal efficiencies, sludge production rates and oxygen requirements. The synthetic feed, containing glucose as the carbon source with nutrients and trace metals was used for influent. The suspended growth activated sludge reactor was made 2ℓ of aeration tank and 0.7ℓ of sedimentation tank. The fixed media activated sludge reactor was fulfilled with the plastic koch media and its volume was 2ℓ. The temperature and HRT were maintained at 20℃ and 11.5hrs, respectively. The organic removal efficiencies and nitrogen removal efficiencies of the fixed media activated sludge without settling tank were higher than that of the suspened growth activated sludge. The sludge productions of the fixed media activated sludge were smaller than that of the suspened growth activated sludge. But, the oxygen uptake rates the fixed media activated sludge were larger than that of the suspened growth activated sludge. |