Construction and Research of Water Reuse System in Green Intelligent Buildings

This paper discusses the construction and research of water reuse system in green intelligent buildings to improve the efficiency of water resources utilization and promote the sustainable development of the construction industry, which is of great significance for environmental protection and energy saving. In this paper, the design principles, technical parameters and costs of the water reuse system are considered comprehensively. The social and economic benefits are explored through empirical analysis of water reuse systems in different types of buildings. The COD concentration of treated water in the middle water is reduced to below 50mg/L, and the SS concentration is stabilized between 8 ∼ 10mg/L, which is in line with the standard. The actual scale of water production is significant, with an average daily treatment volume of 2548.8816m3 for the university water project, and 28.4478m3 and 431.625m3 for the residential neighborhood and public building, respectively. The average value of the whole life cycle cost prediction is about 39,767,335,000 yuan, and the payback period is 9 years. This study demonstrates the effectiveness and economic feasibility of the water reuse system for green intelligent buildings, which is important for improving water utilization efficiency and environmental sustainability in the construction industry.