| Title |
Treatment of Paper Industry Wastewater by Downflow BAF Reactor |
| Authors |
김동진 ; 김건협 ; 유익근 ; 이규현 ; 이태진 ; 이용택 ; 차기철 ( Dong Jin Kim ; Gun Hyub Kim ; Ik Keun Yoo ; Kyu Hyun Lee ; Tae Jin Lee ; Yong Taek Lee ; Gi Cheol Cha ) |
| Abstract |
A downflow biological aerated filter (BAF) packed with porous ceramic media was developed to remove the organic matter in paper industry wastewater. For about 120days, average effluent BOD, COD, and SS were stably kept to less than 20㎎/1. A reduction of 80∼90% for BOD and 75∼90% for COD was obtained at empty bed contact time (EBCT) of 1.2∼11.8 hours. There was no significant difference in removal efficiency up to the hydraulic and organic load of 40㎥/㎡day, 5㎏BOD/㎥day, respectively. The backwashing cycle at once a day was enough to maintain stable operation of BAF reactor. |