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DOI : ,    Vol.4, No.2, 59 ~ 68, 1996
Title
Characteristics of Biofilm Filtration Process for Configuring an Enhanced Water and Wastewater Treatment Systems
강용태Yong Tae Kang,현길수Kil Soo Hyun
Abstract
The Nakdong river being used as drinking water source for Pusan and Kyungnam province was over third or fourth grade in water quality criteria as BOD at lower reaches of the river. It is due to high organic loadings from the each tributary of the river which had high nutrient concentration such as carbonaceous and nitrogenous organic matter in the effluent from existing wastewater treatment plants, which depends on conventional activated sludge process. Thus, this research is to investigate and evaluate the characteristics of biological-film aerated filter (BAF) process as alternative pretreatment process in water treatment system and as tertiary treatment process in wastewater treatment system. The results show that the BAF process was very effective in removing ammonia nitrogen in water and wastewater treatment, which the removal averaged more than 90% regardless of low or high loadings ammonia nitrogen (NH₄-N). The BAF process in water treatment can be reduced chemicals amount and enhanced the efficiency of following processes. In wastewater treatment, the BAF as the tertiary treatment process of the existing system can be maintained stable the effluent and protected water contamination by removing nutrients effectively. In particular, the research results proved that FCS-Biofilm (Flocculation-Clarification-Stabilization+BAF) system deviced from this research was cost-effectiveness.
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