Constructed wetland system and technology for preventing blockage and strengthening anaerobic ammonia oxidation denitrification

Abstract

The invention discloses a constructed wetland system and technology for preventing blockage and strengthening anaerobic ammonia oxidation denitrification, and relates to the technical field of water environment treatment. Suspended matters capable of being settled are precipitated through the front pond, suspended matters difficult to settle are removed through the nano air flotation filter, suspended matters in a water body are removed through the bionic aquatic plant-plant wetland, SS, COD, ammonia nitrogen, total phosphorus and total nitrogen in the water body are removed in combination with addition of microorganisms, and then COD, ammonia nitrogen, total phosphorus and total nitrogen in the water body are removed through the subsurface wetland. Meanwhile, the water level of the subsurface flow wetland is controlled to perform high water level-low water level-high water level periodic operation, the land and water interlaced area is expanded, the anaerobic ammonia oxidation denitrification of the constructed wetland is enhanced, and finally, the polluted water is subjected to denitrification and dephosphorization again through surface flow humidity, so that the aims of gradually reducing the water inlet suspension content of the whole system and enhancing the denitrification and dephosphorization effects of the constructed wetland are fulfilled. The system obviously improves the effluent quality, prevents the constructed wetland from being blocked, prolongs the service life of the constructed wetland, and has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of water environment treatment, in particular to a constructed wetland system and technology for preventing clogging and strengthening anaerobic ammonium oxidation denitrification. Background technique [0002] With the rapid development of my country's economy, urban construction continues to accelerate, and the disorderly discharge of water leads to the destruction of the urban water environment. In addition, the supporting sewage treatment facilities are not perfect, which leads to the further deterioration of my country's ecological water environment and increasingly serious water pollution. Water environment problems such as eutrophication and black odor seriously affect the image of the city and the living standards of surrounding residents, restricting the construction of an ecologically civilized society in which man and nature coexist harmoniously. As an environment-friendly technology, constructed w...

AI Technical Summary

Problems solved by technology

As an environment-friendly technology, constructed wetland has the advantages of low operating cost, simple maintenance, load impact resistance, etc., which is of great significance to my country's water environment management and ecological civilization construction. The poor denitrification effect restricts the promotion of constructed wetlands. Based on this, it is particularly necessary to design a constructed wetland system and technology that prevents clogging and strengthens anammox denitrification.

Images