The world faces a significant crisis of a shortage water supply. UN anticipates that two-thirds of people (70 billion) over the world will be pressed from need of water by 2050. Besides, the long-run development plan of water resources, in 2011, estimates that there will be scarce of water for 20 billion tons. So, any new construction or extension buildings are required by law to install gray water system to solve the shortage of water supply problem. However, researches that are the actual condition of gray-water operation system are not enough. If the installed gray-water system which is invested tons of money by law does not work properly and even stop operating, and so on, when the law takes effect, it is not only loss of economic but also could not help the fundamental problem of water shortage. Thus, this study is purposed to more activate gray-water system through analyzing the present condition and actual situation of buildings adopted gray-water system in Busan
목차
Abstract 1. 서론 1.1 연구 배경 및 목적 1.2 연구 방법 및 범위 2. 국내·외의 이용 사례 2.1 국내 2.2 국외 3. 현장 조사 및 실태분석 3.1 대상 건물의 개요 3.2 실태조사 3.3 시설용량과 사용량 차이 원인분석 4. 효율적 활용방안 4.1 하천유량 유지용수 4.2 농업용수 4.3 공업용수 5. 결론 참고문헌