Multistage rainwater purification treatment device

Abstract

The invention discloses a multistage rainwater purification treatment device which comprises a plurality of stages of treatment pools; the plurality of stages of treatment pools comprises a pre-settling pool, a filtering pool and a water discharging pool from forth to back; a water inlet pipe is arranged in the pre-settling pool; a baffle structure is arranged between the pre-settling pool and the filtering pool; an overflowing baffle is arranged between the filtering pool and the water discharging pool; a plurality of rainwater filters are arranged in the filtering pool; the water discharging openings of the rainwater filters are communicated with the water discharging pool; a water outlet pipe is connected in the water discharging pool. According to the multistage rainwater purification treatment device, functions of gravity settling, screening, filtering and overflowing are integrated, sediments in rainwater are removed by the pre-settling pool, the baffle structure blocks floating matters in the rainwater and can perform primary purification on the rainwater, and the further filtering treatment is performed on the rainwater by the rainwater filters in the filtering pool, so that pollutants, such as particulate matters, heavy metal and organic matters, in the rainwater are removed effectively, the purification treatment efficiency and the pollutant removal efficiency are improved, the standard discharging or recycling of the rainwater is realized, the water environment is protected, and the difficult problem of water shortage is solved.

Description

technical field [0001] The invention relates to rainwater purification equipment, in particular to a multi-stage rainwater purification treatment equipment. Background technique [0002] The process of urbanization and industrialization has led to increasingly serious water crisis and rain and flood hazards, and fewer and fewer clean water sources. Now, almost all countries in the world have water shortages, and the problem of water shortages in my country is even more serious, especially in northern China. Therefore, people need to develop a new water resource, and it has become an important emerging topic to collect and utilize rainwater as water resource for comprehensive management. However, due to the rapid economic development, the accelerated urbanization process, and the extensive use of surface impermeable materials, the runoff pollution has become more and more serious, especially the initial rainwater with more pollutants, and the pollutant indicators of the initi...

AI Technical Summary

Problems solved by technology

[0003] At present, the collection and treatment of initial rainwater in my country is still in its infancy. Collecting initial rainwater is only to prevent it from being discharged into the water body to pollute the water quality, while little consideration is given to the purification and reuse of initial rainwater, even if some areas try to treat initial rainwater Purification treatment, the existing rainwater treatment facilities in most areas are far from meeting the demand for rainwater treatment

Therefore, most of the initial rainwater is directly discharged into the municipal domestic sewage pipe network, and the concentration of pollutants in the rainwater is relatively high, especially the initial rainwater from the road. Direct discharge into the domestic sewage pipe network will bring a greater load to the sewage plant; In some areas, the initial rainwater is directly discarded, or the rainwater that exceeds the treatment capacity of the rainwater treatment facilities is directly discharged into the natural water body, which will cause water pollution, and the rainwater is not used rationally, resulting in waste of water resources.

Images