A method for purifying urban rainwater and the hydraulic jump filter used therein

Abstract

The invention mainly discloses an urban rainwater purification method and a hydraulic jump type filter used therein. According to the technical scheme of the invention, the urban rainwater purification method comprises the following steps: collecting rainwater, detecting the rainwater, carrying out sedimentation treatment, carrying out pH value treatment, carrying out aeration treatment, carrying out biological purification, carrying out fine filtration, and storing. The used hydraulic pump type filter comprises a first filter cartridge and a second filter cartridge, a detection cavity is arranged at a water outlet, only after water body is detected to be in line with urban water consumption requirements by virtue of a detection head, the water body is conveyed into a water storage tank, otherwise the water body is conveyed into the first filter cartridge and the second filter cartridge to be filtered again. The urban rainwater purification method disclosed by the invention has the advantages that the rainwater is collected and purified, collection, permeation, purification and utilization of the rainwater in an urban range are realized to the utmost extent under the premise of guaranteeing waterlogging prevention and safety of a city, urban waterlogging stress can be effectively alleviated and reduced, purification efficiency is high, water quality of the treated rainwater is effectively improved, utilization of a rainwater resource is promoted, and sponge urban construction requirements are met.

Description

technical field [0001] The invention relates to a method for purifying urban rainwater and a hydraulic jump filter used therein. Background technique [0002] With the acceleration of the urbanization process, the natural hydrological cycle processes such as evaporation and infiltration have been severely hindered, the increase in extreme weather, and the frequent occurrence of rainstorm and flood disasters have led to frequent urban waterlogging, water pollution, and a large loss of rainwater resources. There is a trend of waterlogging every time it rains, but the groundwater level has been decreasing year after year, and the water shortage in cities is extremely serious. The tap water supply in many cities and regions has been difficult to keep up with the pace of urbanization. Nowadays, people are paying more and more attention to the development and utilization of water resources. Rainwater is a precious water resource. If it is collected and used effectively, it will ma...

AI Technical Summary

Problems solved by technology

Due to the serious air pollution in our country, the collected rainwater has many impurities and complex sources of pollutants. The reused water obtained by the existing rainwater purification device still has the problem of poor water quality, which cannot well meet the needs of urban systems. , the comprehensive utilization rate of collected rainwater is low, and it does not meet the concept and requirements of sponge city construction and ecological environment protection

Images