Bacillus sp. 부착 여재를 사용한 여과시설의 비점오염원 처리장치 개발 = Development of Non-Point Pollutants Removal Equipments using Media with Bacillus sp

다국어 초록 (Multilingual Abstract)

This study was conducted to reduce runoff by rainwater infiltration facility using attached growth with bacillus sp., which are reported to remove nitrogen and phosphorus as well as organic matter effectively. This study was investigated non-point pollutants removal efficiency of organic, nitrogen, and phosphorus in column using the media attached growth with bacillus sp.. To compare attached growth with bacillus sp. and detached media, two columns filled with perlite, zeolite, vermiculite, pumice, peat-moss was installed. In A column(attached growth with bacillus sp.), in case of infiltration velocity 30 mm/hr in high concentration of influent, it showed the removal efficiency(after aging term) is SS(suspended solid) 85.8±1.2 %, T-P(total phosphorus) 67.0±8.1 %, T-N(total nitrogen) 66.0±4.9 %, COD(chemical oxygen demand) 73.6±2.9 %, NH4+-N 72.7±3.0 %. In B column(detached media), in case of infiltration velocity 30 mm/hr in high concentration of influent, it showed the removal efficiency(after aging term) is SS 86.0±2.2 %, T-P 62.5±11.3 %, T-N 53.3±3.9 %, COD 34.6±3.7 %, NH4+-N 61.5±2.8 %. Removal efficiency of A column is better than B column. As the result from this study, using media with bacillus sp. can improve a effective removal of non-point source pollutants.