Rainwater reuse opportunities

Abstract

The problems of the efficiency of the implementation of sustainable development Programs in terms of the conservation of water resources in urbanized areas are aimed at finding alternative solutions with the inclusion of innovative technologies and the search for optimal criteria for controlling water use conditions. It should be noted that there is insufficient knowledge and elaboration of technologies for the use of rain water resources. The purpose of the research is to develop and supplement the standardized requirements governing the possibility of reusing rainwater with the justification of the criteria for choosing systems for their collection and treatment. There are discrepancies and methodically insufficient elaboration of the problem of substantiating the criteria for choosing rain water collection and treatment systems, taking into account current trends in technology development, it is necessary to add standardized requirements regulating the mechanism of their reuse. To solve the problem, it is proposed to conduct studies clarifying the qualitative composition of surface wastewater, for which laboratory sampling of rainwater from various catchment surfaces was carried out. The results of chemical analyses showed a difference in the characteristics of rainwater collected from roofs, roads and courtyards. Based on the qualitative composition of rainwater, it was found that rainwater collected from roofs has the least pollution. Technological features of rainwater collection and treatment for their further reuse are described. It is proposed to create an accumulating reservoir, the replenishment of which will be carried out as it is used, taking into account the calculated values of the basic techniques. A technological scheme for the treatment of rainwater collected from roofs has been developed, the simplicity and cheapness of the proposed technology is noted.