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DOI : ,    Vol.7, No.2, 5 ~ 12, 1999
Title
Pretreatment of Water Source by Biofilm Filtration Process Using Crushed Stone as Media
강용태Yong Tae Kang,양희천Hee Cheon Yang,송근관Kune Kwan Song,현길수Kil Soo Hyun
Abstract
The Nakdong river being used as drinking water source for Pusan and Kyungnam province was over third grade in water quality criteria as BOD at lower reaches of the river. It is due to high organic loading from the each tributary of the river which had high nutrient concentration such as phosphorus 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 aerated filter process(BAF) as alternative pretreatment process in water treatment system. The results show that the BAF process was very effective in removing ammonia nitrogen in water, which the removal averaged more than 90%. The thermal coefficient of nitrification was 1.068 on the BAF.
Key Words
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