Process intensification without any increase in bed requires the exploitation of fluid mechanical phenomena as the basis for elegant solutions to the process engineering problems which result from the need to retain and control the immobilized biomass, and for biomass recovery. The fluidized bed biological reactor provides a solution to these needs. The wastewater treatment characteristics of the fluidized bed was filled with sand media. Indirect aeration were studied experimentally.
The researcher was filled with sand particle size(0.60∼0.42mm) in three reactors with different section area(A)/height(H), in the state BOD loading 4.5㎏-BOD5/㎥·d, and under the fixed state of hydraulic retention time for around 32 minutes.

• 안송엽(원광대학교 토목환경공학과) | Song Yeob Ahn
• 김환홍(원광대학교 토목환경공학과) | Hwan Hong Kim
• 권희태(원광대학교 토목환경공학과) | Hee Tae Kweon