진공강자흡식 오수시스템에 관한 연구

Currently, water consumption for living continuously increases every year because of the rapid urbanization, industrialization and improvement of living standard. Besides, a radiation treatment hospital, a luxury cruise ship, a passenger airplane, a high-speed train, a camping car, and a portable toilet require the minimum use of the water in its soil water system due to the limitations of the system installation space. Accordingly, the soil water system using the vacuum self-priming pump draws the attention not only for the efficient use of water resources but also the minimum use of the construction spaces. Based on these circumstances, this study practically investigated the amounts of water savings and the amounts of cost savings for the construction and the operation by using the vacuum self-priming pump in the different toilet soil water systems. Results showed that the vacuum self-priming pump system uses much smaller amount of water than the traditional soil water system. In addition, the economic analysis indicated that the new vacuum self-priming pump soil water system saved about 55% for the operation costs and about 32% for the construction costs than the existing traditional soil water systems.