| Title |
Nitrogen and Phosphorus Removal Characteristics from Domestic Sewage using Two Stage Membrane Bioreactor |
| Authors |
박재로 ( Jae Roh Park ) ; 임현만 ( Hyun Man Lim ) ; 김응호 ( Eoung Ho Kim ) |
| Abstract |
Laboratory-scale membrane bioreactor added alum into the anaerobic basin as a flocculant and adsorbent was carried out to find removal efficient of nitrogen and phosphorus components in the mixed liquid and weather or not maintaining the stability for the permeate flux and pressure at various internal recycle conditions. It was found that denitrification efficient of maximum 65% was obtained when the ratio of internal recycle was 3Q. Additionally when the ratio of internal recycle was fixed at 3Q, BOD_5 and T-P concentration of permeate was much more reduced compared to not added alum in anaerobic basin but T-N concentration of permeate was relatively increased. In case of added alum as the flocculant and adsorbent in anaerobic basin, the permeate flux was maintained above 10ℓ/㎡/hr but the permeate pressure was relatively higher than alum was not added in anaerobic basin. |