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DOI : ,    Vol.19, No.1, 27 ~ 35, 2011
Title
Effect of Alum Addition on the Biological Treatment Performance of Attached Growth Process
김진식 Jin Sik Kim , 안명기 Myeong Ki An , 김금용 Keum Yong Kim , 류홍덕 Hong Duck Ryu , 이상일 Sang Ill Lee
Abstract
This work was aimed to evaluate the feasibility of utilizing alum in biological filter system for the enhancement of phosphorus removal performance. The optimum alum dosage was determined by jar-tests. The best experimental ortphophosphate (PO4-P) removal was observed at the Al3+/PO4-P ratio of 2.0. The addition of alum caused the outstanding enhancement of phosphorus removal in the BAF system. Furthermore, TCOD removal efficiency was increased by 14 %. The utilization of alum in the BAF system didn`t cause the inhibition of biological nitrification and denitrification reaction. Finally, the application of alum flocculation to biological treatment system can bring the positive effects on the removals of phosphorus and TCOD without the inhibition of biological nitrification and denitrification.
Key Words
alum, biological aerated filter, phosphorus removal, TCOD removal
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