It is very important to save and reuse the water in order to cope with the global water scarcity. Therefore, the purpose of this study was developed the treating facility using changeable filter in order to reuse the used water or rainfall runoff as the flushing water for toilet and sprinkling water for road and vegetable plants. In order to study, the laboratory scale treating facility, which was composed with the processes of coagulation, flocculation, and filtration, was made, and preliminary test were performed to evaluate the possibility to use the treating facility. The results of treating test for artificial water made by soil were summarized as follows ; 1) Porous and compressible urethane filters with 100 ppi and 400 ppi were selected and successfully used as the changeable filter. 2) As the results of the preliminary test for the artificial colloid made by soil, flow weighted average removal efficiencies of SS were 35% to 40% under the condition of filtering flux of 1500 to 3000 m3/m2/d and pressure of 1 kg/cm2. And the range of mean particle size in effluent was 10~20 μm, and about 90% of filtered solids was washed out for 30 cycles of back washing movement. 3) For the test with turbidity, average removal rate was 31% for the case of filtering only, 32% for the case of coagulant injection and filtering, and 77% for the case of coagulation, flocculation and filtration. It was evaluated that the changeable filter facility with the preceding processes of coagulation and flocculation was possible to practical use to produce recycled water.
목차
ABSTRACT Ⅰ. 서론 Ⅱ. 연구 방법 1. 가변형 필터 선정 및 특성 2. 실험장치 구성 3. 실험 방법 Ⅲ. 연구결과 1. 38 ㎛ 이하의 일반토사의 제거 효율 2. 38∼63 ㎛ 사이의 일반토사의 제거 효율 3. 부유물질의 입경분포 특성 4. 역세척 효율 5. 일반 토사 탁수에 대한 제거효율 Ⅳ. 결론 참고문헌
한국도시환경학회 [The Korean Society of Urban Environment]
설립연도
2001
분야
공학>환경공학
소개
산업화와 도시 집중화 및 교통의 증가에 따른 각종 공해 물질의 증가에 의하여 우리들이 살고 있는 도시환경은 오염되고 있을 뿐만 아니라 도시 생태계가 파괴되어 가고 있다. 이에 따라 우리들의 생산활동이나 공공교통 그리고 일상생활에서 발생하는 대기오염, 수질오염, 토양오염, 폐기물, 소음 및 진동 그리고 그 밖의 오염원으로부터 발생되는 오염물질 등은 인간의 건강 및 생명에 유해하며 나쁜 영향을 미칠 수 있으므로 이를 방지하기 위한 시급한 대처가 요구된다.
이러한 시대적 요청에 따라 본 한국도시환경학회는 도시환경과 관련된 모든 문제를 조사연구함으로써 도시환경학문의 발전과 응용 및 보급에 기여하고 나아가 사회 발전에 이바지함을 목적으로 설립되었다.
간행물
간행물명
한국도시환경학회지 [Journal of the Korean Society of Urban Environment]