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중수도 운전현황분석에 의한 건축 용도별 중수도 특성 분석
나욱호,최미영,홍원화 대한건축학회 2003 대한건축학회 학술발표대회 논문집 - 계획계/구조계 Vol.23 No.1
The water is the key resource of human's life in this planet. All of creatures to live their life being makes necessity of water in other words water is originating the entire resources. Even though highly valuable ones, the actual water operation system in developing country, especially Korea, appears to ignore the importance of this water efficiency. Thus, this research have focused here to make the water operation efficient by classifying as the objectivity and the scale. To assess the hygiene water (graywater) operation sate in developing country, in particular korea is very crucial step to make a master plan for national water resource. According to this purpose, this research starts here to analysis the graywater statue in terms of treatment process, systemic operations and the using logistics etc.; in large sized building such like manufacturing plants, shopping malls and hotels. That data which have obtain through this case studies will provide the optimal size facilities of graywater for the sake of operating of new or old buildings.
이용두,고인범,김현희 제주대학교 해양연구소 1997 해양자원연구소연구보고 Vol.21 No.-
This study was performed to investigated the removal efficiency of BOD and SS from the retreated water of sewage effluent by upflow filtration system. Flow rate of sewage effluent were 80m/day. 150m/day. 200m/day and 300m/day. The removal rate of SS was above 90%. and independent on the flow rate. However. BOD removal rate decreased with the flow rate increase. And removal rate of BOD was 40-60%. In the results of experiment, it was considered that the treated water was possible to use as the graywater because it was suitable to Flush Toilet, Springkle -Water. Cleaning Car. etc.
이주영,한무영,김동근 충북연구원 2010 지역정책연구 Vol.21 No.1
Rainwater harvesting (RWH) is a technology used for collecting and storing rainwater from rooftop catchments. RWH is generally accepted to be a safe and abundant source for alternative water resource in urban region. This study performed analysis of several water quality parameters, I.e., pH, turbidity, metal ions and microbiological parameters. Average pH in storing rainwter is between 7 and 8. The turbidity meets the graywater standard (2 NTU) except for first flush effect during rainfall events. Metal ions meet a drinking water standard requirement in storing rainwater. However, E.C (Escherichia coli) as 3-8 MPN/lOOmL does not meet a drinking water standard(no detection) as well as graywater standard (no detection). This study shows that water quality parameters (pH, turbidity, metal ions and microbiological parameters) depend mainly on catchment and storage tank condition. Therefore, this study suggests the guideline for rainwater harvesting system design, operation and maintenace. -